Textile-compatible photovoltaics play a crucial role as a continuous source of energy in wearable devices. In contrast to other types of energy harvester, they can harvest sufficient electricity (on the order of milliwatts) for wearable devices by utilizing the cloth itself as the platform for photovoltaics. Three features are important for textile-compatible photovoltaics, namely environmental stability, sufficient energy efficiency and mechanical robustness. However, achieving these simultaneously remains difficult because of the low gas barrier properties of ultrathin superstrates and substrates. Here, we report on ultraflexible organic photovoltaics coated on both sides with elastomer that simultaneously realize stretchability and stability in water whilst maintaining a high efficiency of 7.9%. The efficiency of double-side-coated devices decreases only by 5.4% after immersion in water for 120 min. Furthermore, the efficiency of the devices remains at 80% of the initial value even after 52% mechanical compression for 20 cycles with 100 min of water exposure.
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Roundy, S., Wright, P. K. & Rabaey, J. A study of low level vibrations as a power source for wireless sensor nodes. Comput. Commun. 26, 1131–1144 (2003).
Tsai, H. et al. High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells. Nature 536, 312–316 (2016).
Kaltenbrunner, M. et al. Flexible high power-per-weight perovskite solar cells with chromium oxide–metal contacts for improved stability in air. Nat. Mater. 14, 1032–1039 (2015).
Chung, I., Lee, B., He, J., Chang, R. P. H. & Kanatzidis, M. G. All-solid-state dye-sensitized solar cells with high efficiency. Nature 485, 486–489 (2012).
Mathew, S. et al. Dye-sensitized solar cells with 13% efficiency achieved through the molecular engineering of porphyrin sensitizers. Nat. Chem. 6, 242–247 (2014).
Bernechea, M. et al. Solution-processed solar cells based on environmentally friendly AgBiS2 nanocrystals. Nat. Photonics 10, 521–525 (2016).
Sun, Y. et al. Solution-processed small-molecule solar cells with 6.7% efficiency. Nat. Mater. 11, 44–48 (2011).
Zhang, Q. et al. Small-molecule solar cells with efficiency over 9%. Nat. Photonics 9, 35–41 (2014).
Duan, C., Zhang, K., Zhong, C., Huang, F. & Cao, Y. Recent advances in water/alcohol-soluble π-conjugated materials: new materials and growing applications in solar cells. Chem. Soc. Rev. 42, 9071–104 (2013).
Peet, J., Heeger, A. J. & Bazan, G. C. ‘Plastic’ solar cells: self-assembly of bulk heterojunction nanomaterials by spontaneous phase separation. Acc. Chem. Res. 42, 1700–1708 (2009).
Günes, S., Neugebauer, H. & Sariciftci, N. S. Conjugated polymer-based organic solar cells. Chem. Rev. 107, 1324–1338 (2007).
Liao, S.-H. et al. Single junction inverted polymer solar cell reaching power conversion efficiency 10.31% by employing dual-doped zinc oxide nano-film as cathode interlayer. Sci. Rep. 4, 6813 (2014).
He, Z. et al. Single-junction polymer solar cells with high efficiency and photovoltage. Nat. Photonics 9, 174–179 (2015).
Liu, Y. et al. Aggregation and morphology control enables multiple cases of high-efficiency polymer solar cells. Nat. Commun. 5, 5293 (2014).
Zhao, J. et al. Efficient organic solar cells processed from hydrocarbon solvents. Nat. Energy 1, 15027 (2016).
Manceau, M. et al. Photochemical stability of π-conjugated polymers for polymer solar cells: a rule of thumb. J. Mater. Chem. 21, 4132 (2011).
Holliday, S. et al. High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor. Nat. Commun. 7, 11585 (2016).
Sun, Y., Seo, J. H., Takacs, C. J., Seifter, J. & Heeger, A. J. Inverted polymer solar cells integrated with a low-temperature-annealed sol-gel-derived ZnO film as an electron transport layer. Adv. Mater. 23, 1679–1683 (2011).
Lipomi, D. J., Tee, B. C. K., Vosgueritchian, M. & Bao, Z. Stretchable organic solar cells. Adv. Mater. 23, 1771–1775 (2011).
Kaltenbrunner, M. et al. Ultrathin and lightweight organic solar cells with high flexibility. Nat. Commun. 3, 770 (2012).
Yokota, T. et al. Ultraflexible organic photonic skin. Sci. Adv. 2, e1501856 (2016).
Dennler, G., Lungenschmied, C., Neugebauer, H., Sariciftci, N. S. & Labouret, A. Flexible, conjugated polymer-fullerene-based bulk-heterojunction solar cells: Basics, encapsulation, and integration. J. Mater. Res. 20, 3224–3233 (2005).
Dennler, G., Scharber, M. C. & Brabec, C. J. Polymer-fullerene bulk-heterojunction solar cells. Adv. Mater. 21, 1323–1338 (2009).
Kim, D.-H. et al. Stretchable and foldable silicon integrated circuits. Science 320, 507–511 (2008).
Vohra, V. et al. Efficient inverted polymer solar cells employing favourable molecular orientation. Nat. Photonics 9, 403–408 (2015).
Nielsen, L. D. Distributed series resistance effects in solar cells. IEEE Trans. Electron Devices 29, 821–827 (1982).
Gevorgyan, S. A. et al. An inter-laboratory stability study of roll-to-roll coated flexible polymer solar modules. Sol. Energy Mater. Sol. Cells 95, 1398–1416 (2011).
Yokota, T. et al. Ultraflexible, large-area, physiological temperature sensors for multipoint measurements. Proc. Natl Acad. Sci. USA 112, 14533–14538 (2015).
Yamada, T. et al. A stretchable carbon nanotube strain sensor for human-motion detection. Nat. Nanotechnol. 6, 296–301 (2011).
Mourad, M. M., Elshakankery, M. H. & Almetwally, A. A. Physical and stretch properties of woven cotton fabrics containing different rates of spandex. J. Am. Sci 8, 567–572 (2012).
Osaka, I. et al. Synthesis, characterization, and transistor and solar cell applications of a naphthobisthiadiazole-based semiconducting polymer. J. Am. Chem. Soc. 134, 3498–3507 (2012).
Tremolet De Villers, B. J. et al. Removal of residual diiodooctane improves photostability of high-performance organic solar cell polymers. Chem. Mater. 28, 876–884 (2016).
This work was financially supported by the JST PRESTO (grant number JPMJPR1428) and JST ERATO Bio-Harmonized Electronics Project (grant number JPMJER1105). The authors would like to thank K. Tajima and K. Nakano of CEMS, RIKEN (Japan) and H. Kimura of Waseda University (Japan) for their technical support and helpful discussions. The authors also thank D. D. Ordinario of The University of Tokyo (Japan) for editing and proofreading the manuscript.
The authors declare no competing financial interests.
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Jinno, H., Fukuda, K., Xu, X. et al. Stretchable and waterproof elastomer-coated organic photovoltaics for washable electronic textile applications. Nat Energy 2, 780–785 (2017). https://doi.org/10.1038/s41560-017-0001-3
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