| 초록 |
Protruding crystals in the perovskite hybrid solar cells affect the performance and reproducibility of devices. That could form a direct contact between perovskite and counter electrode, resulting in low performance due to recombination. Herein, we investigated the effect of hole transport layer (HTL) thickness on the device: performance versus reproducibility. Too thick HTL causes high series resistance due to low mobility of hole transport material, preferring thin HTL in terms of higher performance. However, too thin HTL can cause short-circuiting. Considering both factors, thin HTL which could perfectly cover protruding perovskites would be the best choice for both reproducibility and performance. |
