High-Working-Pressure Sputtering of ZnO for Stable and Efficient Perovskite Solar Cells
High-Working-Pressure Sputtering of ZnO for Stable and Efficient Perovskite Solar Cells
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DOI：
10.1021/acsaelm.8b00105
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发表时间：
2019-02
影响因子：
4.7
通讯作者：
Abhishek M. Thote;Il Jeon;Hao-Sheng Lin;Sergei Manzhos;Takafumi Nakagawa;D. Suh;Junho Hwang;Makoto Ka
中科院分区：
文献类型：
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作者：
Abhishek M. Thote;Il Jeon;Hao-Sheng Lin;Sergei Manzhos;Takafumi Nakagawa;D. Suh;Junho Hwang;Makoto Ka
由于其高迁移率和低烧结温度，ZnO是一种很有前途的钙钛矿太阳能电池柔性和串联应用的电子传输层。然而，氧化锌不可避免地会引发钙钛矿材料的降解。当使用具有改进的化学计量和最小化缺陷的ZnO薄膜时，可以抑制这种降解。在这项工作中，采用高工作压力溅射技术实现了zno基钙钛矿太阳能电池的高效率和高稳定性。与传统的溅射或溶胶-凝胶ZnO溶液工艺相比，高工作压力溅射工艺可以制备出质量更高、表面缺陷更少的ZnO薄膜。功率转换效率达到17.3%。此外，这些器件的稳定性明显高于传统的zno基钙钛矿太阳能电池。这项工作表明，ZnO可以成为钙钛矿太阳能电池中电子传输层的良好候选者，特别是对于柔性铝…
Owing to its high mobility and low sintering temperature, ZnO is a promising electron-transporting layer for flexible and tandem applications of perovskite solar cells. However, ZnO inevitably triggers the degradation of perovskite materials. Such degradation can be inhibited when ZnO films with improved stoichiometry and minimized defects are used. In this work, a high efficiency with substantial stability of ZnO-based perovskite solar cells is achieved using a high-working-pressure sputtering technique. The high-working-pressure sputtering process can produce higher quality ZnO films with fewer surface defects compared with conventional sputtering or sol–gel ZnO solution processes. A power conversion efficiency of 17.3% is recorded. In addition, the stability of these devices is significantly higher than that of the conventional ZnO-based perovskite solar cells. This work showcases that ZnO can be a good candidate for the electron-transporting layer in perovskite solar cells, particularly for flexible a...