journal article·2021-02-22

Rapid Microwave-Assisted Synthesis of SnO2 Quantum Dots for Efficient Planar Perovskite Solar Cells

Zhengjie Xu, Yue Jiang, Zhuoxi Li, Cong Chen, Xiangyu Kong, Yiwang Chen, Guofu Zhou, Jun-Ming Liu, Krzysztof Kempa, Jinwei Gao

ACS Applied Energy Materials· Volume 4· Issue 2
Publisher page

Abstract

SnO2 has been the most commonly used electron transport layer (ETL) in perovskite solar cells (PSCs) due to its excellent electron mobility and stability. To meet the applications of SnO2 ETL in large-scale solar cells, a rapid but inexpensive synthesis of high-quality SnO2 film is urgently needed. Herein, SnO2 quantum dots (QDs) were synthesized through a super rapid (∼3 min), additive-free microwave-assisted reaction. Comparing with the crystalized SnO2 films, the small-sized SnO2 QDs present improved electronic properties, including the Fermi level, conductivity, electron mobility, and trap density. Hence, with this SnO2 ETL, the power conversion efficiency of the PSCs reached 20.24% using a CH3NH3PbI3 absorber, which is among the highest values in the same rank. Overall, these results demonstrate a bright future for the facile microwave-assisted synthesis of SnO2 QDs along with their application for highly flexible and efficient PSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Conducting polymers and applications

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

Affiliations

Institute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Normal University, Guangzhou 510006, China

Institute of Polymers and Energy Chemistry, College of Chemistry, Nanchang University, Nanchang 330031, China

Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China

Laboratory of Solid-State Microstructures, Nanjing University, Nanjing 210093, China

Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, United States

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guangdong Provincial Key Laboratory of Optical Information Materials and Technology · Science and Technology Program of Guangzhou · Guangdong Provincial Engineering Technology Research Center for Transparent Conductive Materials.

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