Issue 39, 2015

Simple planar perovskite solar cells with a dopant-free benzodithiophene conjugated polymer as hole transporting material

Abstract

Dopant-free poly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b;4,5-b′]dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b] thiophene)-2,6-diyl] (PBDTTT-C) polymer is used as hole transporting material (HTM) in electron transporting material (ETM) free planar perovskite solar cells (PSCs). The devices with a PBDTTT-C HTM show higher power conversion efficiency (PCE = 9.95%) than the devices with a P3HT HTM (PCE = 6.17%) with enhanced short circuit current density (Jsc), open circuit voltage (Voc) and fill factor (FF) in a simple device configuration (ITO/CH3NH3PbI3/PBDTTT-C/MoO3/Ag), due to the suitable energy level, better carrier mobility and lower interfacial charge recombination.

Graphical abstract: Simple planar perovskite solar cells with a dopant-free benzodithiophene conjugated polymer as hole transporting material

Supplementary files

Article information

Article type
Communication
Submitted
23 Jun 2015
Accepted
09 Sep 2015
First published
09 Sep 2015

J. Mater. Chem. C, 2015,3, 10070-10073

Author version available

Simple planar perovskite solar cells with a dopant-free benzodithiophene conjugated polymer as hole transporting material

W. Chen, X. Bao, Q. Zhu, D. Zhu, M. Qiu, M. Sun and R. Yang, J. Mater. Chem. C, 2015, 3, 10070 DOI: 10.1039/C5TC01856K

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