Enhanced long-term stability of perovskite solar cells using a double-layer hole transport material
Enhanced long-term stability of perovskite solar cells using a double-layer hole transport material
复制标题
使用双层空穴传输材料增强钙钛矿太阳能电池的长期稳定性
DOI：
10.1039/c7ta03315j
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发表时间：
2017
影响因子：
11.9
通讯作者：
Zhao Qing
中科院分区：
文献类型：
--
作者：
Li Qi;Zhao Yicheng;Fu Rui;Zhou Wenke;Zhao Yao;Lin Fang;Liu Song;Yu Dapeng;Zhao Qing
有机-无机杂化钙钛矿太阳能电池虽然已经达到了很高的功率转换效率，但其不稳定性阻碍了其商业化和进一步应用。在这里，我们将双层空穴传输材料引入同时含有CuSCN层和螺-OMeCN层的钙钛矿太阳能电池中。因此，与单层器件相比，太阳能电池的长期稳定性显著增强，并且在最大功率点连续工作10小时后，器件可以维持其初始功率转换效率的约90%。我们归因于长期的稳定性增强的抑制甲胺迁移的CuSCN层。
The instability of hybrid organic–inorganic perovskite solar cells hinders their commercialization and further applications although they have reached high power conversion efficiency. Here we introduce a double-layer hole transport material into perovskite solar cells containing a CuSCN layer and spiro-OMeTAD layer simultaneously. Consequently, the long-term stability of the solar cells was significantly enhanced compared to those of single-layer devices and the devices can sustain about 90% of their initial power conversion efficiency after 10 hours of continuous working at the maximum power point. We ascribed the long-term stability enhancement to the suppression of methylamine migration by the CuSCN layer.