New down-converter for UV-stable perovskite solar cells: Phosphor-in-glass
New down-converter for UV-stable perovskite solar cells: Phosphor-in-glass
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DOI：
10.1016/j.jpowsour.2018.04.026
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发表时间：
2018-06
影响因子：
9.2
通讯作者：
H. Roh;G. Han;Seongha Lee;Sanghyun Kim;S. Choi;C. Yoon;Jung‐Kun Lee
中科院分区：
文献类型：
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作者：
H. Roh;G. Han;Seongha Lee;Sanghyun Kim;S. Choi;C. Yoon;Jung‐Kun Lee
混合卤化铅钙钛矿在紫外光下的降解是限制卤化铅钙钛矿太阳能电池（PSC）商业化的关键问题。为了解决这个问题，玻璃中的磷光体（PiG）被用于将UV转换为可见光。通过PiG对UV光的下转换显著增加了PSC的UV稳定性，并使PSC能够收获目前被浪费的UV光。具有PiG层的PSC的性能在100 h长的UV照射期间没有显著变化，而常规PSC在1 h长的UV照射下迅速降解。经过100 h长的紫外光照射后，具有PiG的PSC的功率转换效率比常规PSC的功率转换效率高440%。这一结果为PSC指明了方向，这些PSC在紫外光下非常稳定且高效。
Degradation of hybrid lead halide perovskite by UV light is a crucial issue that limits the commercialization of lead halide perovskite solar cells (PSCs). To address this problem, phosphor-in-glass (PiG) is used to convert UV to visible light. Down-conversion of UV light by PiG dramatically increases UV-stability of PSCs and enables PSCs to harvest UV light that is currently wasted. Performance of PSCs with PiG layer does not change significantly during 100 h-long UV-irradiation, while conventional PSCs degrade quickly by 1 h-long UV-irradiation. After 100 h long UV-irradiation, power conversion efficiency of PSCs with PiG is 440% larger than that of conventional PSCs. This result points a direction toward PSCs which are very stable and highly efficient under UV light.