当前位置: X-MOL 学术ACS Appl. Energy Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Improving the Fill Factor of Perovskite Solar Cells by Employing an Amine-tethered Diketopyrrolopyrrole-Based Polymer as the Dopant-free Hole Transport Layer
ACS Applied Energy Materials ( IF 6.4 ) Pub Date : 2020-09-11 , DOI: 10.1021/acsaem.0c01085
Wenbo Liu 1, 2 , Yiming Ma 3, 4 , Zongrui Wang 1 , Mu Zhu 5 , Jiandong Wang 3 , Maria Khalil 3 , Hongyu Wang 4 , Weibo Gao 5 , W. J. Fan 2 , Wei-Shi Li 3 , Qichun Zhang 1, 5
Affiliation  

Although rapid progress has been witnessed recently in regular perovskite solar cells (PSCs), one of the bottlenecks to delay their industrialization is the complicated and poor reproducible doping process of the widely used hole-transporting material (HTM) spiro-OMeTAD. To address this issue, herein, an unreported polymer, P25NH, has been synthesized and adopted as a dopant-free hole transport layer (HTL) in PSCs. Compared with the commonly used HTM poly(3-hexylthiophene), P25NH shows better aggregation property, enhanced ability of passivation to the perovskite surface, and higher mobility, which could greatly reduce series resistance and improve the fill factor. The PSCs with P25NH (1.6 mg/mL) as HTLs exhibited a decent power conversion efficiency (PCE) of 18.1% with a high fill factor of 81.9% (at 6 mg/mL, the fill factor is 83.2%). This work provides an alternative polymer for scalable dopant-free HTMs and a simple device structure for achieving high PCE.

中文翻译:

通过使用基于胺的束缚二酮吡咯并吡咯基聚合物作为无掺杂空穴传输层来提高钙钛矿太阳能电池的填充因子

尽管最近在常规钙钛矿太阳能电池(PSC)中已见证了快速的进步,但延迟其工业化的瓶颈之一是广泛使用的空穴传输材料(HTM)螺旋-OMeTAD的复杂且可复制性差的掺杂工艺。为了解决这个问题,本文合成了未报告的聚合物P25NH,并将其用作PSC中的无掺杂空穴传输层(HTL)。与常用的HTM聚(3-己基噻吩)相比,P25NH具有更好的聚集性,对钙钛矿表面的钝化能力增强和更高的迁移率,可大大降低串联电阻并提高填充系数。以P25NH(1.6 mg / mL)作为HTL的PSC表现出体面的功率转换效率(PCE)为18.1%,填充因子为81.9%(在6 mg / mL时,填充因子为83.2%)。
更新日期:2020-10-26
down
wechat
bug