Lead-free and electron transport layer-free perovskite yarns: Designed for knitted solar fabrics

被引：15

作者：

Balilonda, Andrew ^{[1
]}

Li, Qian ^{[1
]}

Bian, Xuehao ^{[1
]}

Jose, Rajan ^{[2
]}

Ramakrishna, Seeram ^{[3
]}

Zhu, Meifang ^{[1
]}

Zabihi, Fatemeh ^{[1
]}

Yang, Shengyuan ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai Belt & Rd Joint Lab Adv Fibers & Low dim, Shanghai 201620, Peoples R China

[2] Univ Malaysia Pahang, Fac Ind Sci & Technol, Nanostruct Renewable Energy Mat Lab, Pekan 26300, Malaysia

[3] Natl Univ Singapore, Ctr Nanofibers & Nanotechnol, Singapore 117576, Singapore

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 410卷

关键词：

Electrospinning; Photoactive nanofibers; Lead-free solar yarns; Knitted solar fabrics; THIN-FILMS; CELLS; EFFICIENT; TRANSMITTANCE; REFLECTANCE; PERFORMANCE; CRYSTALLIZATION; LIFETIME; MODEL; PCBM;

D O I：

10.1016/j.cej.2020.128384

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Highly flexible and Lead-free perovskite solar yarns, based on methylammonium tin mixed halide Polyvinylpyrrolidone (PVP) composite nanofibers doped with [6,6]-Phenyl C61 butyric acid methyl ester (PC61BM), as the light harvesters are reported. The photoactive nanofiber layer of the solar yarn featured an optical bandgap of 1.65 eV, with a remarkable light absorption capacity > 90% in the wavelength range of 300-550 nm, outstanding flexibility, and an impressive charge carrier lifetime of 278 ns which rises to 300 ns upon doping with PC61BM. These photoactive nanofibers are directly electrospun on top of poly(3-hexylthiophene-2,5-diyl) 'P3HT', as the hole transporting layer, which was coated on a multi-filament carbon fiber yarn. The resulting yarn is twisted with a commercial silver yarn, serving as the positive electrode. The ensuing fiber-shaped solar device exhibits a maximum power conversion efficiency of 5.34% which is increased to 7.49% upon doping the photoactive layer with 0.17% PC61BM. A knitted solar fabric from the novel solar yarn with 45-mm x 35-mm active area presented a maximum power density of 1.21 mWcm(-2) under 1 sun (1000 Wm(-2)) solar illumination.

引用

页数：12