通过溶液工艺在透明电极上实现 8.36% 效率的 CZTS 太阳能电池

IF 6 3区工程技术 Q2 ENERGY & FUELS

Solar RRL Pub Date : 2024-09-11 DOI:10.1002/solr.202400588

Hongkun Liu, Yize Li, Aoqi Xu, Xinyu Li, Chunxu Xiang, Sifan Zhou, Shaoying Wang, Weibo Yan, Hao Xin

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引用次数: 0

摘要

透明电极上的高带隙 Cu2ZnSnS4（CZTS）薄膜太阳能电池在新的光伏应用场景（包括光伏建筑一体化、光伏车载一体化以及串联结构的顶层电池）中显示出良好的特性。然而，透明衬底上的纯硫化物钾长石 CZTS 薄膜太阳能电池的效率落后于传统钼衬底。本文报告了利用二甲基亚砜溶液在掺氟氧化锡基底上制备高质量 CZTS 吸收薄膜和高效太阳能电池的情况。只需调整前驱体溶液中的化学计量，就能抑制 CZTS 薄膜中有害次生相的形成，从而开发出 5.88% 的 CZTS 太阳能电池。钠（Na）掺杂进一步促进了晶粒生长并抑制了次生相，从而减少了界面重组并提高了器件性能。在掺杂 1% Na 的情况下，实现了效率为 8.36% 的冠军器件，这突出表明了溶液工艺在实现透明电极上的高效钾长石太阳能电池方面的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

8.36% Efficient CZTS Solar Cells on Transparent Electrode via Solution Processing

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8.36% Efficient CZTS Solar Cells on Transparent Electrode via Solution Processing

High‐bandgap Cu2ZnSnS4 (CZTS) thin film solar cells on transparent electrodes show favorable characteristics for new photovoltaic application scenarios including building‐integrated photovoltaics, vehicle‐integrated photovoltaics, and top cell for tandem structure. However, the efficiency of pure sulfide kesterite CZTS thin film solar cells on transparent substrates lags behind that on traditional Mo substrates. Herein, fabrication of high‐quality CZTS absorber films and efficient solar cells on fluorine‐doped tin oxide substrates from dimethyl sulfoxide solution is reported. The formation of harmful secondary phases in CZTS film is suppressed by simply adjusting the chemical stoichiometry in the precursor solution, leading to the development of 5.88% CZTS solar cells. Sodium (Na) doping further promotes grain growth and suppresses secondary phase, contributing to the reduced interface recombination and improved device performance. A champion device with an efficiency of 8.36% has been achieved with 1% Na doping, underscoring the significance of the solution process in achieving highly efficient kesterite solar cells on transparent electrodes.

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来源期刊

Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

12.10

自引率

6.30%

发文量

460

期刊介绍： Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.