|
|||||
|
|
4-Tert-butylpyridine-assisted low-cost and soluble copper phthalocyanine as dopant-free hole transport layer for efficient Pb- and Sn-based perovskite solar cells |
|
| Authors: | Li Chunling He Ruiqin Liang Qing Cao Jing Yin Jun Tang Yu |
| Institution: | 1.State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China ;2.Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, 361005, China ;3.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China ; |
| Abstract: | The preparation of suitable hole transport material(HTM) is critical to the performance and stability of perovskite solar cells(PSCs) with low-cost. Herein, a mass producible and soluble copper phthalocyanine decorated with butoxy donor groups(CuPcOBu) was designed as HTM and prepared by a facile two-step synthetic route. To generate high quality HTM film, 4-tertbutylpyridine(tBP) was doped into CuPc-OBu to prepare the film and then removed by annealing. Such a t BP-assisted strategy resulted in the best efficiency of the PSCs with lead trihalide perovskite up to 19.0%(small-area of 0.1 cm~2) and 10.1%(the active area of 8.0 cm~2 for the module device). And the best efficiency of the tin-based PSCs with CuPc-OBu reached to 6.9%.More importantly, the device with CuPc-OBu as HTM revealed the remarkably enhanced stability. This work provides a new strategy to improve the film-quality of free-doping HTMs and enhance the efficiency and stability of Pb-and Sn-based PSCs with low-cost. |
| Keywords: | |
| 本文献已被 CNKI SpringerLink 等数据库收录！ | |