Zero-dimensional perovskite-like (CH3 NH3)3 Bi2 I9 thin films for photovoltaics
Zero-dimensional perovskite-like (CH3 NH3)3 Bi2 I9 thin films for photovoltaics
复制标题
DOI：
10.1109/pvsc.2018.8547674
复制
发表时间：
2018-06
期刊：
影响因子：
--
通讯作者：
Calum McDonald;C. Ni;M. Lozac’h;D. Mariotti;V. Švrček
中科院分区：
文献类型：
--
作者：
Calum McDonald;C. Ni;M. Lozac’h;D. Mariotti;V. Švrček
我们提出的材料甲基铵碘铋酸盐（MABI）的化学式（CH3 NH3）3 Bi2I9的应用程序作为活性层的光伏电池。MABI采用类钙钛矿结构，近年来作为典型铅卤化物钙钛矿的潜在无铅替代品或用作串联器件中的顶部电池而引起关注。我们证明，MABI设备可以在露天条件下生产，具有良好的稳定性，没有滞后，并可以保留近60%的初始PCE在一段时间内近2年没有封装。这些器件还可以有利地容纳硅纳米晶体，并表现出光电流的增加，这表明有机会形成各种MABInanocrystal混合器件。
We present the material methylammonium iodo bismuthate (MABI) with the chemical formula (CH3 NH 3)3 Bi2I9 for application as the active layer in a photovoltaic cell. MABI adopts a perovskite-like structure and in recent years has attracted attention as a potential lead-free alternative to the typical leadhalide perovskites, or for use as the top cell in a tandem device. We demonstrate that MABI devices can be produced in open-air conditions and with good stability, without hysteresis, and can retain almost 60% of the initial PCE over a period of nearly 2 years without encapsulation. These devices can also favorably accommodate silicon nanocrystals and exhibit an increase in photocurrent, indicating opportunities to form various MABInanocrystal hybrid devices.