Improving performance and moisture stability of perovskite solar cells through interface engineering with polymer-2D MoS2 nanohybrid

被引：34
作者：
Ray, Rajeev [1 ,2 ]
Sarkar, Abdus Salam [1 ,2 ]
Pal, Suman Kalyan [1 ,2 ]
机构：
[1] India Inst Technol Mandi, Sch Basic Sci, Mandi 175005, Himachal Prades, India
[2] India Inst Technol Mandi, Adv Mat Res Ctr, Mandi 175005, Himachal Prades, India
来源：
SOLAR ENERGY | 2019年 / 193卷
关键词：
Perovskite solar cells; Two dimensional materials; Stability; Hole transport layer; CONVERSION EFFICIENCY; CHARGE-TRANSPORT; LAYER; DEGRADATION; LIGHT;
D O I：
10.1016/j.solener.2019.09.055
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) have surged unprecedently to exceeding 23.3% within few years of research. Stability of PSCs still remains the matter of concern. Here, we present an elegant, simple and facile way of enhancing the efficiency and moisture stability of PSCs through interface engineering using poly(3-hexylthiophene-2,5-diy1) - 2D molybdenum disulfide (P3HT-MoS2) nanohybrid. The incorporation of the new hole transporting material (HTM) results into drastic (41%) efficiency enhancement through efficient charge extraction. P3HT-MoS2 interface layer provides much better device stability than that of P3HT. Nonetheless, our results reveal that degradation induced traps are responsible for the reduction of photocurrent and hence the device performance.
引用
收藏
页码：95 / 101
页数：7
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