Efficient CH3NH3PbI3 Perovskite Solar Cells Based on Graphdiyne (GD)-Modified P3HT Hole-Transporting Material

被引：285

作者：

Xiao, Junyan ^{[1
]}

Shi, Jiangjian ^{[1
]}

Liu, Huibiao ^{[2
]}

Xu, Yuzhuan ^{[1
]}

Lv, Songtao ^{[1
]}

Luo, Yanhong ^{[1
]}

Li, Dongmei ^{[1
]}

Meng, Qingbo ^{[1
]}

Li, Yuliang ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condense Matter Phys, Key Lab Renewable Energy CAS,Beijing Key Lab New, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Chem, BNLMS, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China

来源：

Advanced Energy Materials | 2015年 / 5卷 / 08期

基金：

中国国家自然科学基金;

关键词：

THEORETICAL PREDICTIONS; CONDUCTOR; PERFORMANCE; DERIVATIVES; COMPOSITES; GRAPHYNE; MOBILITY; LENGTHS; IODIDE; LAYER;

D O I：

10.1002/aenm.201401943

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel large pi-conjugated carbon material, graphdiyne (GD), as a dopant to poly(3-hexylthiophene) (P3HT) hole-transporting material (HTM) layer, is introduced into perovskite solar cells for the first time. Raman spectroscopy and ultraviolet photoelectron spectroscopy measurements reveal that relatively strong pi-pi stacking interaction occurs between GD particles and P3HT (so-called P3HT/GD composite HTM), favorable for the hole transportation and improvement of the cell performance. On the other hand, some GD aggregates exhibit a scattering nature, and thus help to increase the light absorption of the perovskite solar cells in the long wavelength range. As high as 14.58% light-to-electricity conversion efficiency is achieved, superior to the pristine P3HT-based devices. Additionally, the devices exhibit good stability and reproducibility. Time-resolved photoluminescence decay measurements reveal that the P3HT/GD HTM can accelerate the hole extraction compared with pristine P3HT.

引用

页数：7

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