Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality
Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality
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DOI：
10.1039/c6mh00519e
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发表时间：
2017-03
影响因子：
13.3
通讯作者：
Zewen Xiao;Weiwei Meng;Jianbo Wang;D. Mitzi;Yanfa Yan
中科院分区：
文献类型：
--
作者：
Zewen Xiao;Weiwei Meng;Jianbo Wang;D. Mitzi;Yanfa Yan
寻找无毒、空气稳定的钙钛矿型太阳能电池吸收剂引起了广泛的关注。在这里，我们表明，一个有前途的钙钛矿吸收剂应该表现出高的电子维数。表现出高结构维度但低电子维度的半导体作为吸收体的前景较小，因为对各向同性电流流动的障碍，增强的电子/空穴有效质量和根本上更深的缺陷态（更有效地引起复合）。我们的概念占到文献中报道的钙钛矿基太阳能电池的设备性能。
Searching for promising nontoxic and air-stable perovskite absorbers for solar cell applications has drawn extensive attention. Here, we show that a promising perovskite absorber should exhibit a high electronic dimensionality. Semiconductors that exhibit a high structural dimensionality, but a low electronic dimensionality have less promise as an absorber, because of barriers to isotropic current flow, enhanced electron/hole effective masses and fundamentally deeper defect states (more effective at causing recombination). Our concept accounts for the device performance of the perovskite-based solar cells reported in literature so far.