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Imomec and Solliance Present CZTSe-Based Solar Cell at Intersolar Conference

At next week’s Intersolar conference in San Francisco, imomec,imec’sHasselt University的相关实验室和关注薄膜光伏太阳能(PV)的欧洲研发联盟Solliance将提供一个基于9.7%的效率(1x1cm2,AM1.5G)的CZTSE(CU2ZNSNSE4)太阳能电池。

薄膜CZTSE太阳能电池可实现9.7%的效率

这一有希望的结果是一个重要的步骤,使太阳能产业更接近可持续替代方案,即基于CIGS(CU(in,GA)(S,SE,SE)2),生产中最高效率薄膜太阳能电池的可持续替代方案。

CZTSE是薄膜太阳能电池中新兴的替代太阳能电池吸收器,类似于CZTS(CU2ZNSNS4)。与CIGS不同,CZT和CZTSE不会遭受丰富的问题​​。CZTS为1.5-1.6EV,CZTSE为0.9EV,它们的带盖成为了一个组合材料系统,非常适合与CIGS细胞效率相关的多开关,薄膜太阳能电池(约20%)。IMOMEC,IMEC和Solliance已定义了进一步改善CZTSE和CZTS吸收器的层和细胞结构的途径,旨在开发具有20%细胞效率的多连接CZTS/CZTSE太阳能电池。提出的CZTSE太阳能电池是实现此目标的重要一步。

Imec/imomec fabricated the CZTSe layers by sputtering Cu, Zn and Sn metal layers on a Molybdenum-on-glass substrate and subsequent annealing in an H2Se containing atmosphere, achieving 9.7 percent efficiency. The resulting polycrystalline absorber layers are only 1µm thick, with a typical grain size of about 1µm. The samples were then processed at Helmholtz Zentrum Berlin into solar cells using a standard process flow for thin film solar cells and finished with a metal grid and anti-reflective coating at imec. The highest efficiency obtained on a
1x1cm2 cell was 9.7 percent, with a maximum short circuit current of 38.9mA/cm2, an open circuit voltage of 0.41V and a fill factor of 61 percent.

“这对我们来说是一个巨大的胜利。自2011年以来,我们就一直在努力实现这一里程碑,当时我们首次在IMEC/IMOMEC上开始研究薄膜光伏替代材料的研究。亚博网站下载“我们的效率在欧洲是最高的,并在这种类型的薄膜太阳能电池方面取得了世界纪录,我们期待进一步发展研发,以帮助将可持续的能源推向市场。”

The sputtering of the Cu, Zn, Sn layers was performed at Flamac (Gent), and the international glass manufacturer AGC delivered Molybdenum-on- glass substrates. Imec’s thin-film solar cell activities at imomec (imec’s associated laboratory at the university of Hasselt) are integrated in the Solliance cross-border collaboration platform, and the research was partially supported by the Flemish ‘Strategisch Initiatief Materialen’ (SIM) SoPPoM program.

*预计将于2013年10月获得认证。

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