journal article·2020-11-23

Boosting the Electrical Properties of Cu2ZnSn(S,Se)4 Solar Cells via Low Amounts of Mg Substituting Zn

Yiming Wang, Yanchun Yang, Chengjun Zhu, Hongmei Luan, Ruijian Liu, Lei Wang, Chenxi Zhao, Xiaogong Lv

ACS Applied Energy Materials· Volume 3· Issue 11
Publisher page

Abstract

Substitution of Zn with Mg has been reported to suppress CuZn defects, which can improve the photoelectric performance of Cu2ZnSn(S,Se)4 (CZTSSe) photovoltaic devices. In our work, the electrical property enhancement of an absorbing layer can be found by incorporating Mg content into the as-prepared precursor solution, forming an alloyed Cu2MgxZn1-xSn(S,Se)4 (CMZTSSe) phase and increasing the photoelectric performance of devices. By adjusting the doping ratio of Mg, we systemically study the impact of Mg content on the crystal structure, thickness, and electrical properties of the Cu2MgxZn1-xSn(S,Se)4 absorbing layer. Also, the photoelectric performance of Cu2MgxZn1-xSn(S,Se)4 solar cells have a large improvement, and the optimal photoelectric conversion efficiency (PCE) of 7.76% for devices is obtained. Our results offer the finding that Mg doping can optimize the electrical properties of Cu2ZnSn(S,Se)4 photovoltaic devices.
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Research context

OpenAlex topics: Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties · Copper-based nanomaterials and applications

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

Affiliations

Key Laboratory of Semiconductor Photovoltaic Technology of Inner Mongolia Autonomous Region, School of Physical Science and Technology, Inner Mongolia University, 235 West University Road, Hohhot, Inner Mongolia 010021, China

Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, School of Physics and Electronic Information, Inner Mongolia Normal University, 81 Zhaowuda Road, Hohhot, Inner Mongolia 010022, China

Funding

Research Program of Science and Technology at Universities of Inner Mongolia Autonomous Region · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Natural Science Foundation of?Inner Mongolia Autonomous Region

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