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Singlet fission and tandem solar cells reduce thermal degradation and enhance lifespan
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2021-05-05 , DOI: 10.1002/pip.3405 Yajie Jiang 1 , Michael P. Nielsen 1 , Alex J. Baldacchino 1 , Martin A. Green 1 , Dane R. McCamey 2 , Murad J. Y. Tayebjee 1 , Timothy W. Schmidt 3 , Nicholas. J. Ekins‐Daukes 1
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2021-05-05 , DOI: 10.1002/pip.3405 Yajie Jiang 1 , Michael P. Nielsen 1 , Alex J. Baldacchino 1 , Martin A. Green 1 , Dane R. McCamey 2 , Murad J. Y. Tayebjee 1 , Timothy W. Schmidt 3 , Nicholas. J. Ekins‐Daukes 1
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The economic value of a photovoltaic installation depends upon both its lifespan and power conversion efficiency. Progress toward the latter includes mechanisms to circumvent the Shockley-Queisser limit, such as tandem designs and multiple exciton generation (MEG). Here we explain how both silicon tandem and MEG-enhanced silicon cell architectures result in lower cell operating temperatures, increasing the device lifetime compared to standard c-Si cells. Also demonstrated are further advantages from MEG enhanced silicon cells: (i) the device architecture can completely circumvent the need for current-matching; and (ii) upon degradation, tetracene, a candidate singlet fission (a form of MEG) material, is transparent to the solar spectrum. The combination of (i) and (ii) mean that the primary silicon device will continue to operate with reasonable efficiency even if the singlet fission layer degrades. The lifespan advantages of singlet fission enhanced silicon cells, from a module perspective, are compared favorably alongside the highly regarded perovskite/silicon tandem and conventional c-Si modules.
中文翻译：
单线态裂变和串联太阳能电池可减少热降解并延长寿命
光伏装置的经济价值取决于其寿命和功率转换效率。后者的进展包括绕过肖克利-奎瑟极限的机制，例如串联设计和多激子生成 (MEG)。在这里，我们解释了硅串联和 MEG 增强型硅电池架构如何导致更低的电池工作温度，与标准 c-Si 电池相比，增加了器件寿命。还证明了 MEG 增强型硅电池的进一步优势：(i) 器件架构可以完全避免电流匹配的需要；(ii) 在降解后，并四苯，一种候选的单线态裂变（一种形式的 MEG）材料，对太阳光谱是透明的。(i) 和 (ii) 的组合意味着即使单线态裂变层退化，初级硅器件也将继续以合理的效率运行。从模块的角度来看，单线态裂变增强型硅电池的寿命优势与备受推崇的钙钛矿/硅串联和传统 c-Si 模块相比具有优势。
更新日期：2021-05-05
中文翻译：
单线态裂变和串联太阳能电池可减少热降解并延长寿命
光伏装置的经济价值取决于其寿命和功率转换效率。后者的进展包括绕过肖克利-奎瑟极限的机制，例如串联设计和多激子生成 (MEG)。在这里，我们解释了硅串联和 MEG 增强型硅电池架构如何导致更低的电池工作温度，与标准 c-Si 电池相比，增加了器件寿命。还证明了 MEG 增强型硅电池的进一步优势：(i) 器件架构可以完全避免电流匹配的需要；(ii) 在降解后，并四苯，一种候选的单线态裂变（一种形式的 MEG）材料，对太阳光谱是透明的。(i) 和 (ii) 的组合意味着即使单线态裂变层退化，初级硅器件也将继续以合理的效率运行。从模块的角度来看，单线态裂变增强型硅电池的寿命优势与备受推崇的钙钛矿/硅串联和传统 c-Si 模块相比具有优势。
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