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TCO-free flexible organo metal trihalide perovskite planar-heterojunction solar cells.

Authors :
Dianetti, M.
Di Giacomo, F.
Polino, G.
Ciceroni, C.
Liscio, A.
D'Epifanio, A.
Licoccia, S.
Brown, T.M.
Di Carlo, A.
Brunetti, F.
Source :
Solar Energy Materials & Solar Cells. Sep2015, Vol. 140, p150-157. 8p.
Publication Year :
2015

Abstract

In this work we present a transparent conductive oxide (TCO)-free flexible perovskite planar heterojunction solar cell made with a semitransparent anode realized with a highly conductive poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) PEDOT:PSS (PH1000 by Clevios) modified with ethylene glycol layer, deposited via spray coating. We investigated several formulations of PEDOT:PSS modified by addition of solvents with high boiling point such as ethylene glycol (EG) and dimethyl sulfoxide (DMSO). Optimized samples show a 65% transmittance at 550 nm and a sheet resistance of 28 Ω/□. On these optimized electrodes we fabricated a TCO-free flexible device, the best of which exhibited a power conversion efficiency of 4.9% under 100 mW/cm 2 illumination at AM1.5G. The efficiency of the perovskite planar-heterojunction solar cell, with the modified PEDOT:PSS anode was comparable to the one realized on a PET–ITO anode. Moreover, in the bending test, ITO-free flexible solar cell manifested superior mechanical robustness, showing the high flexibility of the perovskite layer. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09270248
Volume :
140
Database :
Academic Search Index
Journal :
Solar Energy Materials & Solar Cells
Publication Type :
Academic Journal
Accession number :
102980431
Full Text :
https://doi.org/10.1016/j.solmat.2015.03.016