Li, Qian and Balilonda, Andrew and Ali, Aizaz and Rajan, Jose and Zabihi, Fatemeh and Yang, Shengyuan and Ramakrishna, Seeram and Zhu, Meifang (2020) Flexible Solar Yarns with 15.7% Power Conversion Efficiency, Based on Electrospun Perovskite Composite Nanofibers. Solar RRL, 4 (9). pp. 1-12. ISSN 2367-198X. (Published)
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Abstract
A flexible perovskite solar yarn with an impressive active lifetime (>216 h) and an exceptional photon conversion efficiency is prepared under ordinary conditions. The champion device demonstrates an average linear mass density of 0.89 mg cm−1 and can be bent over a loop diameter of 2.5 mm, with a negligible efficiency loss. Photoactive nanofibers composed of a polyvinylpyrrolidone (PVP) central strain and a perovskite phase on the surface (with average grain size of 275 ± 14.3 nm), are prepared by electrospinning, at 18 kV, relative humidity of 75%, and a temperature of 25 °C. This bilayered configuration promises superior mechanical strength and flexibility, together with an excellent photovoltaic character, compared with their dip coated counterparts. Photoactive perovskite nanofibers are incorporated into a plied-solar yarn, with an organic hole-conductive layer, poly(3-hexylthiophene-2,5-diyl)-coated on silver yarn electrode, and a composite electron conductive layer, phenyl-C61-butyric acid methyl ester (PC61BM)-SnO2 coated on a carbon yarn. An individual double-twisted solar yarns yields 15.7% champion power conversion efficiency, while a 30.5 mm × 30.5 mm active area of plain-woven fabric generates a maximum power density of 1.26 mW cm−2 under one sun (1000 W m−2) solar illumination.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | electrospinning; fiber-shaped solar cells; perovskite–PVP nanofibers; perovskites; photovoltaics |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Prof. Dr. Jose Rajan |
| Date Deposited: | 01 Mar 2021 06:31 |
| Last Modified: | 01 Mar 2021 06:31 |
| URI: | http://umpir.ump.edu.my/id/eprint/30805 |
| Download Statistic: | View Download Statistics |
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