Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Korea.
Adv Mater. 2014 Aug 6;26(29):4991-8. doi: 10.1002/adma.201401137. Epub 2014 Jun 13.
Perovskite solar cells with power conversion efficiencies exceeding 16% at AM 1.5 G one sun illumination are developed using the black polymorph of formamidnium lead iodide, HC(NH2)2 PbI3 . Compared with CH3 NH3 PbI3 , HC(NH2 )2 PbI3 extends its absoprtion to 840 nm and shows no phase transition between 296 and 423 K. Moreover, a solar cell based on HC(NH2 )2 PbI3 exhibits photostability and little I-V hysteresis.
使用黑相碘化甲脒铅（HC(NH2)2 PbI3）开发了功率转换效率超过 AM 1.5G 标准阳光照射下 16%的钙钛矿太阳能电池。与 CH3NH3PbI3 相比，HC(NH2)2PbI3 的吸收扩展到 840nm，并且在 296 到 423K 之间没有相变。此外，基于 HC(NH2)2PbI3 的太阳能电池表现出良好的光稳定性和较小的 I-V 滞后。
