<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ma, Yingzhuang</style></author><author><style face="normal" font="default" size="100%">Chung, Yao-Hsien</style></author><author><style face="normal" font="default" size="100%">Zheng, Lingling</style></author><author><style face="normal" font="default" size="100%">Zhang, Danfei</style></author><author><style face="normal" font="default" size="100%">Xiao Yu</style></author><author><style face="normal" font="default" size="100%">Xiao, Lixin</style></author><author><style face="normal" font="default" size="100%">Chen, Zhijian</style></author><author><style face="normal" font="default" size="100%">Wang, Shufeng</style></author><author><style face="normal" font="default" size="100%">Qu, Bo</style></author><author><style face="normal" font="default" size="100%">Qihuang Gong</style></author><author><style face="normal" font="default" size="100%">Zou, Dechun</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improved Hole-Transporting Property via HAT-CN for Perovskite Solar Cells without Lithium Salts</style></title><secondary-title><style face="normal" font="default" size="100%">ACS APPLIED MATERIALS &amp; INTERFACES</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR 1</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">12</style></number><volume><style face="normal" font="default" size="100%">7</style></volume><pages><style face="normal" font="default" size="100%">6406-6411</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A nonadditive hole-transporting material (HTM) of a triphenylamine derivative of N,N'-di(3-methylphenyl)-N,N'-diphenyl-4,4'-diaminobiphenyl (TPD) is used for the organic-inorganic hybrid perovskite solar cells. The power conversion efficiency (PCE) can be significantly enhanced by inserting a thin layer of 1,4,5,8,9,11-hexaazatriphenylenehexacarbonitrile (HAT-CN) without adding an ion additive because the hole-transporting properties improve. The short-circuit current density (J(sc)) increases from 8.5 to 13.1 mA/cm(2), the open-circuit voltage (V-oc) increases from 0.84 to 0.92 V, and the fill-factor (FF) increases from 0.45 to 0.59, which corresponds to the increase in PCE from 3.2% to 7.1%. Moreover, the PCE decreases by only 10% after approximately 1000 h without encapsulation, which suggests an alternative method to improve the stability of perovskite solar cells.</style></abstract><custom7><style face="normal" font="default" size="100%">000352246700007</style></custom7></record></records></xml>