Study on the Bifacial Ultrathin CdTe Solar Cell With ZnTe:N/IWO Composite Transparent Back Electrode

IF 2.5 3区工程技术 Q3 ENERGY & FUELS

IEEE Journal of Photovoltaics Pub Date : 2024-10-30 DOI:10.1109/JPHOTOV.2024.3483249

Xin Zhang;Xiutao Yang;Yujie Zheng;Yunpu Tai;Jingquan Zhang;Bing Li;Chebotareva Alla;Amangel'di Kamalov;Guanggen Zeng

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引用次数: 0

Abstract

Fabrication of bifacial translucent solar cell is a promising technology for the development of building integrated photovoltaics and the construction of tandem solar cell. In this work, cadmium telluride (CdTe) polycrystalline thin films with a thickness of 1 μ m were prepared by using close space sublimation system while nitrogen-doped zinc telluride (ZnTe: N) and tungsten-doped indium oxide (IWO) layers were deposited by using magnetron sputtering and reactive plasma deposition technology, respectively. After analyzing the optical and electrical properties of films and optimizing their deposition processes, a bifacial ultrathin solar cell with a 7.1% back illumination conversion efficiency was developed, which was currently the best back illumination efficiency for CdTe solar cell with an absorption layer thickness of no more than 1 μ m. Furthermore, the bifacial ultrathin CdTe solar cell with ZnTe:N/IWO composite transparent back electrode can achieved a maximum theoretical efficiency of up to 20% under the back illumination by employing SCAP software simulation design.

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ZnTe:N/IWO复合透明背电极双面超薄CdTe太阳能电池的研究

双面半透明太阳能电池的制备是发展建筑集成光伏和串联太阳能电池的一项有前途的技术。本文采用密闭空间升华法制备了厚度为1 μm的碲化镉（CdTe）多晶薄膜，采用磁控溅射和反应等离子体沉积技术分别制备了氮掺杂碲化锌（ZnTe: N）和钨掺杂氧化铟（IWO）薄膜。通过分析薄膜的光学和电学性质，并对其沉积工艺进行优化，开发出了双面超薄太阳能电池，其背照转换效率为7.1%，这是目前吸收层厚度不大于1 μm的CdTe太阳能电池的最佳背照效率。此外，采用SCAP软件仿真设计，采用ZnTe:N/IWO复合透明背电极的双面超薄CdTe太阳能电池在背光照下的理论效率最高可达20%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Journal of Photovoltaics ENERGY & FUELS-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.00

自引率

10.00%

发文量

206

期刊介绍： The IEEE Journal of Photovoltaics is a peer-reviewed, archival publication reporting original and significant research results that advance the field of photovoltaics (PV). The PV field is diverse in its science base ranging from semiconductor and PV device physics to optics and the materials sciences. The journal publishes articles that connect this science base to PV science and technology. The intent is to publish original research results that are of primary interest to the photovoltaic specialist. The scope of the IEEE J. Photovoltaics incorporates: fundamentals and new concepts of PV conversion, including those based on nanostructured materials, low-dimensional physics, multiple charge generation, up/down converters, thermophotovoltaics, hot-carrier effects, plasmonics, metamorphic materials, luminescent concentrators, and rectennas; Si-based PV, including new cell designs, crystalline and non-crystalline Si, passivation, characterization and Si crystal growth; polycrystalline, amorphous and crystalline thin-film solar cell materials, including PV structures and solar cells based on II-VI, chalcopyrite, Si and other thin film absorbers; III-V PV materials, heterostructures, multijunction devices and concentrator PV; optics for light trapping, reflection control and concentration; organic PV including polymer, hybrid and dye sensitized solar cells; space PV including cell materials and PV devices, defects and reliability, environmental effects and protective materials; PV modeling and characterization methods; and other aspects of PV, including modules, power conditioning, inverters, balance-of-systems components, monitoring, analyses and simulations, and supporting PV module standards and measurements. Tutorial and review papers on these subjects are also published and occasionally special issues are published to treat particular areas in more depth and breadth.