Optics and photonics

  • Article | | open

    The resolution limitations when using the ubiquitous algorithms that process images obtained using modern techniques are not straightforward to define. Here, the authors examine the performance of localization algorithms and use spatial statistics to provide a metric for assessing the resolution limit of such algorithms.

    • Edward A. K. Cohen
    • , Anish V. Abraham
    • , Sreevidhya Ramakrishnan
    •  & Raimund J. Ober
  • Article | | open

    Simple, fast, and accurate detection of food freshness has great significance to food safety and business. Here, the authors develop cellulose-based ratiometric fluorescent materials with superior amine-response, which can be used for visual monitoring the freshness of shrimp and crab.

    • Ruonan Jia
    • , Weiguo Tian
    • , Haotian Bai
    • , Jinming Zhang
    • , Shu Wang
    •  & Jun Zhang
  • Article | | open

    Molecular motion has attracted a wide range of interest for different applications. Here, the authors develop nanoparticles with internal molecular motion upon near infrared absorption and use the nanoparticles for photoacoustic imaging and demonstrate this application in vivo.

    • Zheng Zhao
    • , Chao Chen
    • , Wenting Wu
    • , Fenfen Wang
    • , Lili Du
    • , Xiaoyan Zhang
    • , Yu Xiong
    • , Xuewen He
    • , Yuanjing Cai
    • , Ryan T. K. Kwok
    • , Jacky W. Y. Lam
    • , Xike Gao
    • , Pingchuan Sun
    • , David Lee Phillips
    • , Dan Ding
    •  & Ben Zhong Tang
  • Article | | open

    Wide application of quantum dot light emitting diodes (QLED) in display technology is hindered by the poor lifetime of the blue QLEDs. Here, the degradation mechanism is shown to originate from space charge accumulation in the electron-transporting layer enabling improvements in blue QLED lifetimes.

    • Song Chen
    • , Weiran Cao
    • , Taili Liu
    • , Sai-Wing Tsang
    • , Yixing Yang
    • , Xiaolin Yan
    •  & Lei Qian
  • Article | | open

    Defect tolerance is important in order to ensure the mechanical integrity of synthetic materials and biological tissues. Here the authors demonstrate that toughening mechanisms provide soft collagenous tissues with high defect tolerance, with important implications for biomedical applications.

    • Kevin Bircher
    • , Manuel Zündel
    • , Marco Pensalfini
    • , Alexander E. Ehret
    •  & Edoardo Mazza
  • Article | | open

    Objects with varied mechanical properties can be produced by additive manufacturing, but multimaterial control along all three axes of printing is still limited. Here the authors use wavelength control during vat polymerization and demonstrate printing of objects with spatial control of the composition and stiffness.

    • J. J. Schwartz
    •  & A. J. Boydston
  • Article | | open

    Coccolithophores are one of the most abundant phytoplankton and calcifying organisms, well-known to produce intricate calcareous exoskeletons made of coccoliths. Here the authors show, by using X-ray nanotomography, the dependence of the grid size on the calcite nucleation site number and on the mass of coccoliths.

    • T. Beuvier
    • , I. Probert
    • , L. Beaufort
    • , B. Suchéras-Marx
    • , Y. Chushkin
    • , F. Zontone
    •  & A. Gibaud
  • Article | | open

    New photoluminescent strategies are required to realize high-performance ratiometric sensors for bio-sensing applications. Here, the authors demonstrate a fluorescence-thermally activated delayed fluorescence dual emission strategy for ratiometric sensors with high precision.

    • Xuping Li
    • , Gleb Baryshnikov
    • , Chao Deng
    • , Xiaoyan Bao
    • , Bin Wu
    • , Yunyun Zhou
    • , Hans Ågren
    •  & Liangliang Zhu
  • Article | | open

    The rapid development of halide perovskite light-emitting diodes mainly relies on the optimization of the active layer and charge injection layers. Here Zhang et al. incorporate three-dimensional nanophotonic substrates to enhance light out-coupling and achieve high external quantum efficiency of 17.5%.

    • Qianpeng Zhang
    • , Mohammad Mahdi Tavakoli
    • , Leilei Gu
    • , Daquan Zhang
    • , Lei Tang
    • , Yuan Gao
    • , Ji Guo
    • , Yuanjing Lin
    • , Siu-Fung Leung
    • , Swapnadeep Poddar
    • , Yu Fu
    •  & Zhiyong Fan
  • Article | | open

    Various techniques combine light and ultrasound to study the inside of strongly scattering samples, beyond the reach of purely optical imaging. Here, Katz et al. introduce the acousto-optic transmission matrix framework that allows to control and focus light beyond the acoustic diffraction limit.

    • Ori Katz
    • , François Ramaz
    • , Sylvain Gigan
    •  & Mathias Fink
  • Article | | open

    While methane has become an increasingly important chemical feedstock, its selective conversion to other chemicals has proven challenging. Here, authors demonstrate a photocatalyst based on earth-abundant elements that selectively converts methane to carbon monoxide under mild conditions.

    • Xiang Yu
    • , Vincent De Waele
    • , Axel Löfberg
    • , Vitaly Ordomsky
    •  & Andrei Y. Khodakov
  • Article | | open

    The search for peroxidase-like as well as other enzyme-like nanozymes mainly relies on trial-and-error strategies, due to the lack of predictive descriptors. Here, the authors fill this gap by investigating the occupancy of eg orbitals as a possible descriptor for the peroxidase-like activity of transition metal oxide nanozymes

    • Xiaoyu Wang
    • , Xuejiao J. Gao
    • , Li Qin
    • , Changda Wang
    • , Li Song
    • , Yong-Ning Zhou
    • , Guoyin Zhu
    • , Wen Cao
    • , Shichao Lin
    • , Liqi Zhou
    • , Kang Wang
    • , Huigang Zhang
    • , Zhong Jin
    • , Peng Wang
    • , Xingfa Gao
    •  & Hui Wei
  • Article | | open

    Laser fields can be tuned to probe electronic motion in atoms and molecules. Here the authors ionize Na atoms using bichromatic pulses to generate electron wave packets of crescent-shaped and 7-fold rotational symmetry which do not follow the field symmetry but are determined by multiphoton interference.

    • S. Kerbstadt
    • , K. Eickhoff
    • , T. Bayer
    •  & M. Wollenhaupt
  • Article | | open

    While the conversion of CO2 to valuable, storable chemicals is attractive, there are few inexpensive and abundant catalysts that are also active and selective for liquid fuels. Here, the authors study copper selenide as a high-performing and efficient electrocatalyst for CO2 conversion to methanol.

    • Dexin Yang
    • , Qinggong Zhu
    • , Chunjun Chen
    • , Huizhen Liu
    • , Zhimin Liu
    • , Zhijuan Zhao
    • , Xiaoyu Zhang
    • , Shoujie Liu
    •  & Buxing Han
  • Article | | open

    All-inorganic cesium lead bromide perovskite based light-emitting diodes show improved operational stability but the film quality limits their performance. Here Wang et al. use trifluoroacetate anions to passivate defects and achieve excellent device performance and stability.

    • Haoran Wang
    • , Xiaoyu Zhang
    • , Qianqian Wu
    • , Fan Cao
    • , Dongwen Yang
    • , Yuequn Shang
    • , Zhijun Ning
    • , Wei Zhang
    • , Weitao Zheng
    • , Yanfa Yan
    • , Stephen V. Kershaw
    • , Lijun Zhang
    • , Andrey L. Rogach
    •  & Xuyong Yang
  • Article | | open

    Electrochromic technology has diverse cutting-edge applications, but it has never been used to overcome the critical problems in the field of surface-enhanced Raman scattering (SERS). Here, the authors demonstrate a generic electrochromic strategy for ensuring the reproducibility and renewability of SERS substrates.

    • Shan Cong
    • , Zhen Wang
    • , Wenbin Gong
    • , Zhigang Chen
    • , Weibang Lu
    • , John R. Lombardi
    •  & Zhigang Zhao
  • Article | | open

    Many 2-Cystein Peroxiredoxins (Prx) can either function as peroxidases or chaperones when exposed to stress. Here the authors present the structures of Leishmania infantum mitochondrial Prx alone and with a bound model client protein, use crosslinking to reveal interaction regions that stabilize the bound client, and provide insights into the mechanism by which Prx’s adopt chaperone activity.

    • Filipa Teixeira
    • , Eric Tse
    • , Helena Castro
    • , Karl A. T. Makepeace
    • , Ben A. Meinen
    • , Christoph H. Borchers
    • , Leslie B. Poole
    • , James C. Bardwell
    • , Ana M. Tomás
    • , Daniel R. Southworth
    •  & Ursula Jakob
  • Article | | open

    Here, the authors integrate an acoustic trap with a compact light sheet fluorescence microscope to provide contactless sample confinement of biological organisms. The application of verapamil and norepinephrine to zebrafish larvae was also studied, and the heartbeat response was monitored with light sheet imaging.

    • Zhengyi Yang
    • , Katy L. H. Cole
    • , Yongqiang Qiu
    • , Ildikó M. L. Somorjai
    • , Philip Wijesinghe
    • , Jonathan Nylk
    • , Sandy Cochran
    • , Gabriel C. Spalding
    • , David A. Lyons
    •  & Kishan Dholakia
  • Article | | open

    Chip-based frequency combs promise many applications, but full integration requires the electrical pump source and the microresonator to be on the same chip. Here, the authors show such integration of a microcomb with < 100 GHz mode spacing without additional filtering cavities or on-chip heaters.

    • Arslan S. Raja
    • , Andrey S. Voloshin
    • , Hairun Guo
    • , Sofya E. Agafonova
    • , Junqiu Liu
    • , Alexander S. Gorodnitskiy
    • , Maxim Karpov
    • , Nikolay G. Pavlov
    • , Erwan Lucas
    • , Ramzil R. Galiev
    • , Artem E. Shitikov
    • , John D. Jost
    • , Michael L. Gorodetsky
    •  & Tobias J. Kippenberg
  • Article | | open

    Highly ordered and compositionally complex ceramics are prone to disordering under irradiation, but exactly how is unclear. Here, the authors use high resolution microscopy to directly image the order-to-disorder phase transformations in Ti3AlC2 into otherwise unattainable solid solutions.

    • Chenxu Wang
    • , Tengfei Yang
    • , Cameron L. Tracy
    • , Chenyang Lu
    • , Hui Zhang
    • , Yong-Jie Hu
    • , Lumin Wang
    • , Liang Qi
    • , Lin Gu
    • , Qing Huang
    • , Jie Zhang
    • , Jingyang Wang
    • , Jianming Xue
    • , Rodney C. Ewing
    •  & Yugang Wang
  • Article | | open

    Many Gram-negative bacteria rely on a type III secretion system (T3SS) for their pathogenicity. Here authors present the cryo-EM structure of the E.coli T3SS ATPase-central stalk complex, which forms a homohexameric, asymmetric pore with different functional states.

    • Dorothy D. Majewski
    • , Liam J. Worrall
    • , Chuan Hong
    • , Claire E. Atkinson
    • , Marija Vuckovic
    • , Nobuhiko Watanabe
    • , Zhiheng Yu
    •  & Natalie C. J. Strynadka
  • Article | | open

    Electrochemical water splitting is promising for sustainable energy, but relies on development of electrocatalysts for hydrogen evolution. Here the authors report nitrogen- and ruthenium-codoped carbon nanowires in which ruthenium atoms in a carbon matrix drive electrocatalysis of hydrogen evolution

    • Bingzhang Lu
    • , Lin Guo
    • , Feng Wu
    • , Yi Peng
    • , Jia En Lu
    • , Tyler J. Smart
    • , Nan Wang
    • , Y. Zou Finfrock
    • , David Morris
    • , Peng Zhang
    • , Ning Li
    • , Peng Gao
    • , Yuan Ping
    •  & Shaowei Chen
  • Article | | open

    The authors computationally and experimentally derive the selection rules on polarization, wavelengths, and magnetic damping for non-dissipative аll-optical magnetic recording with femtosecond laser pulses in Co-doped garnet film. The suggested approach is based on a multiple resonant pumping of localized d-electron transitions.

    • A. Stupakiewicz
    • , K. Szerenos
    • , M. D. Davydova
    • , K. A. Zvezdin
    • , A. K. Zvezdin
    • , A. Kirilyuk
    •  & A. V. Kimel
  • Article | | open

    There is growing interest in designing platforms for coherent electron-driven photon sources for hybrid light and electron spectroscopy. Here the authors demonstrate generation of coherent broadband ultrashort light pulses upon electron irradiation to nanostructured gold plated film.

    • Nahid Talebi
    • , Sophie Meuret
    • , Surong Guo
    • , Mario Hentschel
    • , Albert Polman
    • , Harald Giessen
    •  & Peter A. van Aken
  • Article | | open

    It remains challenging on how to selectively control terahertz conductivity at surface from the bulk contribution in topological insulators. Here, Luo et al. discover and manipulate topologically enhanced surface transport due to helical spin structure using mid-infrared and terahertz ultrafast photoexcitations.

    • L. Luo
    • , X. Yang
    • , X. Liu
    • , Z. Liu
    • , C. Vaswani
    • , D. Cheng
    • , M. Mootz
    • , X. Zhao
    • , Y. Yao
    • , C.-Z. Wang
    • , K.-M. Ho
    • , I. E. Perakis
    • , M. Dobrowolska
    • , J. K. Furdyna
    •  & J. Wang
  • Article | | open

    Electromagnetic surface waves, derived from Maxwell theory, underpin many optical effects and applications. Here, Bliokh et al. show that surface waves at interfaces between isotropic media have a topological origin described by the non-Hermitian helicity operator and bulk-boundary correspondence.

    • Konstantin Y. Bliokh
    • , Daniel Leykam
    • , Max Lein
    •  & Franco Nori
  • Article | | open

    Pairs of microdisk lasers are one of the most common systems for studying optical PT-symmetry. Here, Lafalce, Zeng et al. study the influence of fabrication imperfections in a disk pair made from colloidal quantum dots and show that the resulting three modes also coalesce at an exceptional point.

    • Evan Lafalce
    • , Qingji Zeng
    • , Chun Hao Lin
    • , Marcus J. Smith
    • , Sidney T. Malak
    • , Jaehan Jung
    • , Young Jun Yoon
    • , Zhiqun Lin
    • , Vladimir V. Tsukruk
    •  & Z. Valy Vardeny
  • Article | | open

    Heart grafts need good vascularization to survive. Here, the authors engineer perfusable constructs of human embryonic stem cell-derived endothelial cells seeded in collagen matrix in patterned microchannels that form anastomosed vessels in vitro and have increased coronary vascular perfusion on transplantation in rats.

    • Meredith A. Redd
    • , Nicole Zeinstra
    • , Wan Qin
    • , Wei Wei
    • , Amy Martinson
    • , Yuliang Wang
    • , Ruikang K. Wang
    • , Charles E. Murry
    •  & Ying Zheng
  • Article | | open

    Self-assembly of carbohydrates play an integral part in the design of higher ordered structures, but is limited to amphiphiles where the carbohydrate is covalently bound to a hydrophobic tail. Here the authors show that sugars direct the self-assembly of insoluble curcumin and the formation of well-defined capsules.

    • Sandy Wong
    • , Jiacheng Zhao
    • , Cheng Cao
    • , Chin Ken Wong
    • , Rhiannon P. Kuchel
    • , Sergio De Luca
    • , James M. Hook
    • , Christopher J. Garvey
    • , Sean Smith
    • , Junming Ho
    •  & Martina H. Stenzel
  • Article | | open

    Dilanthanide complexes that possess radical bridges exhibit enhanced magnetic exchange coupling, affording molecular magnets with high blocking temperatures. Here, the authors explore a series of dilanthanide-encapsulated fullerenes where the radical bridge is taken to its limit and the role is played by a single unpaired electron.

    • Fupin Liu
    • , Georgios Velkos
    • , Denis S. Krylov
    • , Lukas Spree
    • , Michal Zalibera
    • , Rajyavardhan Ray
    • , Nataliya A. Samoylova
    • , Chia-Hsiang Chen
    • , Marco Rosenkranz
    • , Sandra Schiemenz
    • , Frank Ziegs
    • , Konstantin Nenkov
    • , Aram Kostanyan
    • , Thomas Greber
    • , Anja U. B. Wolter
    • , Manuel Richter
    • , Bernd Büchner
    • , Stanislav M. Avdoshenko
    •  & Alexey A. Popov
  • Article | | open

    Long acquisition time and high illumination intensities needed in super-resolution imaging often generate photobleaching and phototoxicity. Here the authors develop a non-deterministic scanning approach based on a real-time feedback system that enables faster acquisition with lower light doses for in vivo imaging.

    • Jes Dreier
    • , Marco Castello
    • , Giovanna Coceano
    • , Rodrigo Cáceres
    • , Julie Plastino
    • , Giuseppe Vicidomini
    •  & Ilaria Testa
  • Article | | open

    Rix7 is a type II AAA-ATPase that is required for the assembly of the large ribosomal subunit. Here the authors present the 4.5 Å cryo-EM structure of the Rix7 homohexamer with a polypeptide fragment bound in its central channel and provide insights into the function of Rix7 as a molecular unfoldase.

    • Yu-Hua Lo
    • , Mack Sobhany
    • , Allen L. Hsu
    • , Brittany L. Ford
    • , Juno M. Krahn
    • , Mario J. Borgnia
    •  & Robin E. Stanley
  • Article | | open

    Cellulose nanocrystals (CNCs) spontaneously organize into a helical arrangement but flexible CNC elastomer composite materials with this structure were so far not realized. Here the authors demonstrate the fabrication of a CNC based elastomer composite and its application as a photonic strain sensor.

    • Osamu Kose
    • , Andy Tran
    • , Lev Lewis
    • , Wadood Y. Hamad
    •  & Mark J. MacLachlan
  • Article | | open

    The structures of fullerenes, or buckyballs, are often very difficult to resolve. Here, the authors describe a decapyrrylcorannulene host with ten flexible pyrryl groups that can efficiently co-crystallize with diverse fullerene derivatives in a ‘hand-ball-hand’ fashion, allowing crystallographic identification of commonly known types of fullerenes.

    • Yun-Yan Xu
    • , Han-Rui Tian
    • , Shu-Hui Li
    • , Zuo-Chang Chen
    • , Yang-Rong Yao
    • , Shan-Shan Wang
    • , Xin Zhang
    • , Zheng-Zhong Zhu
    • , Shun-Liu Deng
    • , Qianyan Zhang
    • , Shangfeng Yang
    • , Su-Yuan Xie
    • , Rong-Bin Huang
    •  & Lan-Sun Zheng
  • Article | | open

    Lead trihalide perovskites are notable for their excellent optoelectronic properties and uncommon phase behavior. Here, Kirschner et al. show that cesium lead bromide nanocrystals experience a reversible orthorhombic-to-cubic phase transition at moderate excitation fluences and become amorphous at higher fluences.

    • Matthew S. Kirschner
    • , Benjamin T. Diroll
    • , Peijun Guo
    • , Samantha M. Harvey
    • , Waleed Helweh
    • , Nathan C. Flanders
    • , Alexandra Brumberg
    • , Nicolas E. Watkins
    • , Ariel A. Leonard
    • , Austin M. Evans
    • , Michael R. Wasielewski
    • , William R. Dichtel
    • , Xiaoyi Zhang
    • , Lin X. Chen
    •  & Richard D. Schaller
  • Article | | open

    The weak effects induced by lattice disorder on the optoelectronic properties of halide perovskites still remain elusive. Here Wu et al. confirm the indirect transition tail states in perovskite crystals which explain their low photoluminescence quantum yield, dual emission peaks and difficulties in realizing lasing.

    • Bo Wu
    • , Haifeng Yuan
    • , Qiang Xu
    • , Julian A. Steele
    • , David Giovanni
    • , Pascal Puech
    • , Jianhui Fu
    • , Yan Fong Ng
    • , Nur Fadilah Jamaludin
    • , Ankur Solanki
    • , Subodh Mhaisalkar
    • , Nripan Mathews
    • , Maarten B. J. Roeffaers
    • , Michael Grätzel
    • , Johan Hofkens
    •  & Tze Chien Sum
  • Article | | open

    Placement of charge centres with atomic precision on graphene allows exploration of new types of confinement of charge carriers. Here, the authors fabricate atomically precise arrays of point charges on graphene and observe the onset of a frustrated supercritical regime.

    • Jiong Lu
    • , Hsin-Zon Tsai
    • , Alpin N. Tatan
    • , Sebastian Wickenburg
    • , Arash A. Omrani
    • , Dillon Wong
    • , Alexander Riss
    • , Erik Piatti
    • , Kenji Watanabe
    • , Takashi Taniguchi
    • , Alex Zettl
    • , Vitor M. Pereira
    •  & Michael F. Crommie
  • Article | | open

    It has been challenging to probe whether dynamically disordered organic cations affect optical properties of CH3NH3PbI3. Here, Guo et al. employ infrared-pump electronic-probe spectroscopy and show that pump-induced atomic motions of the organic cations do not substantially alter optoelectronic properties.

    • Peijun Guo
    • , Arun Mannodi-Kanakkithodi
    • , Jue Gong
    • , Yi Xia
    • , Constantinos C. Stoumpos
    • , Duyen H. Cao
    • , Benjamin T. Diroll
    • , John B. Ketterson
    • , Gary P. Wiederrecht
    • , Tao Xu
    • , Maria K. Y. Chan
    • , Mercouri G. Kanatzidis
    •  & Richard D. Schaller
  • Article | | open

    Space charge effects can distort the results of photoelectron spectroscopic measurements, and usually limit the allowable photon flux in an experiment. Here, the authors present an 18.4 MHz repetition rate high harmonic source in the 25–60 eV range, with a large count rate improvement over state-of-the-art attosecond setups under identical space charge conditions.

    • T. Saule
    • , S. Heinrich
    • , J. Schötz
    • , N. Lilienfein
    • , M. Högner
    • , O. deVries
    • , M. Plötner
    • , J. Weitenberg
    • , D. Esser
    • , J. Schulte
    • , P. Russbueldt
    • , J. Limpert
    • , M. F. Kling
    • , U. Kleineberg
    •  & I. Pupeza
  • Article | | open

    Storage-free quantum repeaters represent a viable alternative to quantum-memory-based ones. Here, the authors propose a modified scheme for Bell state measurements which reduces the necessary resources for realising such an all-photonic repeater, and show a proof-of-principle implementation.

    • Yasushi Hasegawa
    • , Rikizo Ikuta
    • , Nobuyuki Matsuda
    • , Kiyoshi Tamaki
    • , Hoi-Kwong Lo
    • , Takashi Yamamoto
    • , Koji Azuma
    •  & Nobuyuki Imoto
  • Article | | open

    To date, experimental demonstrations of PT-symmetric systems have been restricted to one dimension. Here, the authors experimentally realize and characterize a two-dimensional PT-symmetric system using photonic lattice waveguides with judiciously designed refractive index landscape and an alternating loss distribution.

    • Mark Kremer
    • , Tobias Biesenthal
    • , Lukas J. Maczewsky
    • , Matthias Heinrich
    • , Ronny Thomale
    •  & Alexander Szameit
  • Article | | open

    Realizing efficient on-chip amplification in silicon is challenging due to either non-compatible integration or small gain per unit length of the amplifier material. Here, the authors report ultra-high on-chip optical gain in erbium-based hybrid silicon nitride slot waveguides with a monolithic, CMOS-compatible and scalable atomic-layer deposition process.

    • John Rönn
    • , Weiwei Zhang
    • , Anton Autere
    • , Xavier Leroux
    • , Lasse Pakarinen
    • , Carlos Alonso-Ramos
    • , Antti Säynätjoki
    • , Harri Lipsanen
    • , Laurent Vivien
    • , Eric Cassan
    •  & Zhipei Sun
  • Article | | open

    The development of electrically conductive fibres is attractive for wearable electronics, but performance should be maintained upon deformation and tensile strain. Here the authors fabricate flexible, stretchable, carbon nanotube-coated spandex fibres for supercapacitors and artificial muscles.

    • Wonkyeong Son
    • , Sungwoo Chun
    • , Jae Myeong Lee
    • , Yourack Lee
    • , Jeongmin Park
    • , Dongseok Suh
    • , Duck Weon Lee
    • , Hachul Jung
    • , Young-Jin Kim
    • , Younghoon Kim
    • , Soon Moon Jeong
    • , Sang Kyoo Lim
    •  & Changsoon Choi
  • Article | | open

    It is commonly assumed that a complete theory for selection rules in optical nonlinear harmonic generation was developed previously. Here, the authors present more general group theory based formalism for harmonic generation from dilute and dense media, yielding new symmetries and selection rules.

    • Ofer Neufeld
    • , Daniel Podolsky
    •  & Oren Cohen
  • Article | | open

    Graphene oxide (GO) dispersions may be used as starting materials for graphene-based architectures. Here, a malleable and versatile dough state of GO is discovered, completing the GO–water continuum, which can be diluted or converted to glassy GO or graphene solids without long-range stacking order with enhanced mechanical and electrochemical properties

    • Che-Ning Yeh
    • , Haiyue Huang
    • , Alane Tarianna O. Lim
    • , Ren-Huai Jhang
    • , Chun-Hu Chen
    •  & Jiaxing Huang
  • Article | | open

    Infrared-light-induced carrier transfer is a key technology for ‘invisible’ optical devices, but making materials with the right properties remains a challenge. Here, the authors fabricate a clear and colourless material which converts infrared light to an electrical signal or energy based on a localized surface plasmon resonance, with implications for the development of invisible optical devices.

    • Masanori Sakamoto
    • , Tokuhisa Kawawaki
    • , Masato Kimura
    • , Junie Jhon M. Vequizo
    • , Hironori Matsunaga
    • , Chandana Sampath Kumara Ranasinghe
    • , Akira Yamakata
    • , Hiroyuki Matsuzaki
    • , Akihiro Furube
    •  & Toshiharu Teranishi
  • Article | | open

    All-polymer solar cells have shown high efficiencies but the ultrafast charge transfer processes are less known. Here Wang et al. show that polaron pairs play vital role facilitating the hole transfer, which is quite different from the exciton dominated pathway in polymer-fullerene blends.

    • Rui Wang
    • , Yao Yao
    • , Chunfeng Zhang
    • , Yindong Zhang
    • , Haijun Bin
    • , Lingwei Xue
    • , Zhi-Guo Zhang
    • , Xiaoyu Xie
    • , Haibo Ma
    • , Xiaoyong Wang
    • , Yongfang Li
    •  & Min Xiao