Publication

Spiro-bifluorene core based hole transporting material with graphene oxide modified CH3NH3PbI3 for inverted planar heterojunction solar cells

Mohammad Khaja Nazeeruddin
2019
Journal Articles

Abstract

Inverted planar heterojunction solar cells (iPHSCs) were fabricated with novel spiro-bifluorene (CF-Sp-BTh) based hole transport material (HTM) and graphene oxide (GO) modified perovskite (CH3NH3PbI3) as sensitizer. CF-Sp-BTh exhibited relatively high hole mobility and favorable HOMO level with respect to the valence band of CH3NH3PbI3. iPHSC using CF-Sp-BTh HTM and GO (0.5 wt%)-CH3NH3PbI3 achieved the power conversion efficiency (PCE) of similar to 14.28%, with open circuit voltage (V-OC) of similar to 1.07 V and a short circuit current density (J(SC)) of similar to 18.82 mA/cm(2). The photovoltaic performance of FTO/CF-Sp-BTh/GO- (0.5 wt%)-CH3NH3PbI3/PC61BM/Au was higher compared to pristine CH3NH3PbI3 and other GO-CH3NH3PbI3 hybrid based devices. The photoluminescence decay and electrochemical impedance spectra confirmed an enhanced charge separation and retarded charge recombination of GO-CH3NH3PbI3 hybrid based iPHSCs. (C) 2019 Elsevier Ltd. All rights reserved.

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https://infoscience.epfl.ch/entities/publication/cb3f999a-e5f8-4ed4-b9f0-91638e115360

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Mohammad Khaja Nazeeruddin
2019
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cb3f999a-e5f8-4ed4-b9f0-91638e115360

About this result

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