A multifunctional poly-N-vinylcarbazole interlayer in perovskite solar cells for high stability and efficiency: a test with new triazatruxene-based hole transporting materials

被引：84

作者：

Su, Pei-Yang ^{[1
]}

Huang, Li-Bo ^{[1
]}

Liu, Jun-Min ^{[1
]}

Chen, Yi-Fan ^{[1
]}

Xiao, Li-Min ^{[2
]}

Kuang, Dai-Bin ^{[1
]}

Mayor, Marcel ^{[1
]}

Su, Cheng-Yong ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Mat Sci & Engn, Sch Chem, Lehn Inst Funct Mat,MOE Lab Bioinorgan & Synthet, Guangzhou 510275, Peoples R China

[2] Beihang Univ, Sch Engn & Comp Sci, Beijing 100191, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2017年 / 5卷 / 05期

关键词：

LIGHT; IMPROVEMENT; LAYER; FILMS;

D O I：

10.1039/c6ta09314k

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：

The hydrophobic and conductive polymer poly-N-vinylcarbazole (PVK) has been successfully utilized as a multifunctional interlayer between perovskite and the hole transporting material (HTM) for highly stable and efficient perovskite solar cells (PSCs) for the first time. The very thin PVK interlayer can not only protect the perovskite structure from moisture and degradation, but also modulate the interface to reduce charge recombination and promote hole transportation simultaneously. Benefited by coupling this PVK-protection method with the molecular design of an economical and synthetically facile triazatruxene-based HTM (SP-12) featuring good stability, planarity and hole mobility, a reliable power conversion efficiency of 18.8% has been achieved, which is superior to that using the well-studied spiro-OMeTAD (16.9%), demonstrating a promising fabrication approach to efficient and long-term stable PSCs.

引用

页码：1913 / 1918

页数：6

共 49 条

[1] Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide [J].