DataVXChemNanoMatPaper
journal article·2023-01

A Mixed PC61BM‐COi8DFIC Based Electron Transport Material for Inverted High‐performance Perovskite Solar Cells

Jazib Ali, Yu Li, Jingnan Song, Ming Zhang, Guanqing Zhou, Jinqiu Xu, Lei Zhu, Ahmad Hussain, Firoz Khan, Feng Liu

ChemNanoMat· Volume 9· Issue 1
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Source abstract

Abstract

Abstract This study reports a blend of [6, 6]‐phenyl‐C61‐butyric acid methyl ester (PC61BM) and COi8DFIC non‐fullerene acceptor (NFA) as an electron transport layer (ETL) in perovskite solar cells (PSCs). This mixed small‐molecule ETL showed good inter‐molecule mixing, reduced intermolecular distances and decent morphology, resulting in excellent charge carrier transport properties. Morever, charge carrier extraction and transport at the perovskite/ETL interface was optimized by reducing surface traps and defects due to the passivation ability of various terminal groups from the COi8DFIC molecule. A high power conversion efficiency (PCE) of 19.12 % was achieved by taking advantage of benefits from both molecules, showing much better performance than the invidual PC61BM or COi8DFIC (7.13% for using the NFA only). Moreover, the storage and ambient stabilities of the mixed ETL‐based PSCs increased dramatically compared to control devices.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Center of Hydrogen Science Center of Physical Science Shanghai Jiao Tong University Shanghai 200240 P. R. China

Centre for Hybrid and Organic Solar Energy (CHOSE) Department of Electronic Engineering University of Rome Tor Vergata Rome 00133 Italy

National Synchrotron Radiation Laboratory (NSRL) University of Science and Technology of China Hefei Anhui 230029 P. R. China

Department of Physics, Sargodha Campus The University of Lahore Sargodha 40100 Pakistan

Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS) King Fahd University of Petroleum and Minerals (KFUPM) Dhahran 31261 Saudi Arabia

Funding

National Natural Science Foundation of China · Natural Science Foundation of Shandong Province

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