文献类型：期刊文献

英文题名：Needle coke: A predominant carbon black alternative for printable triple mesoscopic perovskite solar cells

作者：Zhong, Ya[1,2];Xu, Liang[1,2];Li, Chen[1,2];Zhang, Bo[3];Wu, Wenjun[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Sch Chem & Mol Engn, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Shanghai Normal Univ, Dev Ctr Plant Germplasm Resources, Coll Life & Environm Sci, Key Lab Resource Chem,Minist Educ, 100 Guilin Rd, Shanghai 200234, Peoples R China

年份：2019

卷号：153

起止页码：602

外文期刊名：CARBON

收录：;EI(收录号：20193107253965);WOS:【SCI-EXPANDED(收录号:WOS:000485054200069)】；

基金：This work was supported financially by NSFC/China (21676087), the Scientific Committee of Shanghai (18160723400), and the Programme of Introducing Talents of Discipline to Universities (B16017). The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for the help in characterization.

语种：英文

外文关键词：Coke - Carbon black - Perovskite solar cells - Needles - Solar power generation

摘要：As a key component of a printable triple mesoporous perovskite solar cell (PSC), the carbon material used in it is a decisive factor for the photovoltaic performance of the device. In this work, needle coke (NC) has been innovatively introduced into the carbon paste to replace the traditional carbon black for the fabrication of printable triple mesoporous PSCs. The champion power conversion efficiency was largely improved from 7.49% with carbon black to 11.66% with NC. The excellent performance of NC can be attributed to its high charge extraction capability, morphology-assisted perovskite injection and crystallization, inhibition of current leakage, and charge recombination. In addition, its low dielectric constant is also beneficial to minish the hysteresis effect for PSCs. (C) 2019 Elsevier Ltd. All rights reserved.