DataVXAdvanced MaterialsPaper
journal article·2020-08

Laser‐Generated Supranano Liquid Metal as Efficient Electron Mediator in Hybrid Perovskite Solar Cells

Huiwu Yu, Wenhao Zhao, Long Ren, Hongyue Wang, Pengfei Guo, Xiaokun Yang, Qian Ye, Dmitry Shchukin, Yi Du, Shixue Dou, Hongqiang Wang

Advanced Materials· Volume 32· Issue 34
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Source abstract

Abstract

Abstract Creating colloids of liquid metal with tailored dimensions has been of technical significance in nano‐electronics while a challenge remains for generating supranano (<10 nm) liquid metal to unravel the mystery of their unconventional functionalities. Present study pioneers the technology of pulsed laser irradiation in liquid from a solid target to liquid, and yields liquid ternary nano‐alloys that are laborious to obtain via wet‐chemistry synthesis. Herein, the significant role of the supranano liquid metal on mediating the electrons at the grain boundaries of perovskite films, which are of significance to influence the carriers recombination and hysteresis in perovskite solar cells, is revealed. Such embedding of supranano liquid metal in perovskite films leads to a cesium‐based ternary perovskite solar cell with stabilized power output of 21.32% at maximum power point tracing. This study can pave a new way of synthesizing multinary supranano alloys for advanced optoelectronic applications.
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Research context

Metals & alloysElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films

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

Affiliations

State Key Laboratory of Solidification Processing Center for Nano Energy Materials School of Materials Science and Engineering Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710072 P. R. China

School of Physics Northwest University Xi'an 710127 P. R. China

Institute for Superconducting and Electronic Materials University of Wollongong Wollongong NSW 2500 Australia

Stephenson Institute for Renewable Energy University of Liverpool Liverpool L69 7ZF UK

Department of Physical and Colloid Chemistry Gubkin University 65/1 Leninsky Prospect Moscow 19991 Russia

BUAA‐UOW Joint Research Centre and School of Physics Beihang University Beijing 100191 P. R. China

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · Fundamental Research Funds for the Central Universities · State Key Laboratory of Solidification Processing · Australian Research Council · Joint Research Centre · Russian Science Foundation

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