Optical spectroscopy articles within Communications Materials

Featured

• Article
  06 April 2024 | Open Access

  Activation of telecom emitters in silicon upon ion implantation and ns pulsed laser annealing

  Defected silicon has uses in optically active telecom emitters. Here, nanosecond pulsed laser annealing is demonstrated as a non-invasive, localized method to activate the defects in high-purity silicon substrates.

  • Greta Andrini
  • , Gabriele Zanelli
  •  & Jacopo Forneris

• Article
  08 March 2024 | Open Access

  Band transport evidence in PEDOT:PSS films using broadband optical spectroscopy from terahertz to ultraviolet region

  Hole-doped polymer PEDOT:PSS shows high conductivity but the carrier transport mechanism is not yet clarified. Here, broadband optical conductivity spectra are derived using terahertz time-domain spectroscopy and far-infrared to-ultraviolet reflection spectroscopy, demonstrating band transport of hole carriers.

  • Zijing Guo
  • , Tetsu Sato
  •  & Hiroshi Okamoto

• Review Article
  09 October 2023 | Open Access

  Advantages and developments of Raman spectroscopy for electroceramics

  Raman spectroscopy is a popular non-destructive characterisation technique, but its application to electroceramics is under-represented compared to other fields. In this review, the latest instrumentational and computational advances are discussed, suggesting key advantages in the study of electroceramics.

  • Marco Deluca
  • , Hailong Hu
  •  & Thomas Dieing

• Article
  04 August 2023 | Open Access

  Time gated Fourier transform spectroscopy as a technique for disentangling short- and long-lived luminescence

  Tools for characterizing materials both spectrally and temporally are important to investigate fundamental properties of materials. Here, 2D temporal-spectral maps are shown to be useful for characterizing and discriminating luminescence signals that occur on widely different timescales.

  • Mikkel Baldtzer Liisberg
  •  & Tom Vosch

• Article
  03 March 2022 | Open Access

  A consistent picture of excitations in cubic BaSnO₃ revealed by combining theory and experiment

  The BaSnO₃ perovskite is promising for electronic applications due to its transparency and high room-temperature mobility, but its effective masses, band gaps, and absorption edge are still controversial. Here, a combined theoretical and experimental study provides a consistent picture of its electronic structure and optical excitations.

  • Wahib Aggoune
  • , Alberto Eljarrat
  •  & Claudia Draxl

• Article
  28 October 2020 | Open Access

  Nacre toughening due to cooperative plastic deformation of stacks of co-oriented aragonite platelets

  The hierarchical structure of nacre is known to contribute to its high strength and toughness, providing inspiration for many biomimetic materials. Here, co-oriented 20 µm stacks of aragonite platelets are shown to contribute to the toughness of nacre, defining a new characteristic length scale.

  • Hyun-Chae Loh
  • , Thibaut Divoux
  •  & Admir Masic