journal article·2020-04-27

Platinum-Free Ternary Metallic Selenides as Nanostructured Counter Electrode for High-Efficiency Dye-Sensitized Solar Cell by Interface Engineering

Wen-Wu Liu, Wei Jiang, Yu-Cheng Liu, Wen-Jun Niu, Mao-Cheng Liu, Kun Zhao, Lu-Yin Zhang, Ling Lee, Ling-Bin Kong, Yu-Lun Chueh

ACS Applied Energy Materials· Volume 3· Issue 4
Publisher page

Abstract

The high cost and instability of platinum (Pt) counter electrodes (CEs) are two persistent issues in dye-sensitized solar cells (DSSCs). Here, ternary selenide NiCoSe and RuCoSe-nanostructured CEs are prepared by a simple one-step hydrothermal method. We mainly investigate the synergistic effect of ternary transition metals on the electrocatalytic properties. As a result, the photoelectric conversion efficiency (PCE) of NiCoSe CEs DSSCs with the enhanced efficiency up to 8.19% can be achieved. The excellent catalytic properties of the NiCoSe alloy selenide on I3– can be attributed to the expanded active sites, matched work function, redistributed electron structures, and reduced interface resistance. The facile preparation approach and outstanding catalytic behaviors offer applications of available DSSCs with low cost, superior stability, and promising performance.
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Research context

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Quantum Dots Synthesis And Properties

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

Affiliations

State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, P. R. China

College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China

Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan

Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan

Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan

Funding

Ministry of Science and Technology · National Natural Science Foundation of China · Lanzhou University of Technology

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