Flexible, transparent nanocellulose paper-based perovskite solar cells  

作　　者：Lei Gao Lingfeng Chao Meihui Hou Jin Liang Yonghua Chen Hai-Dong Yu Wei Huang 

机构地区：[1]Institute of Advanced Materials(IAM)&Key Laboratory of Flexible Electronics(KLOFE),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing Tech University(NanjingTech),30 South Puzhu Road,211816 Nanjing,China [2]Shanxi Institute of Flexible Electronics(SIFE),Northwestern Polytechnical University,127 West Youyi Road,710072 Xi’an,China

出　　处：《npj Flexible Electronics》2019年第1期42-49,共8页npj-柔性电子（英文）

基　　金：This work was financially supported by the National Natural Science Foundation of China(Grants 21675085,51602149,61705102,and 91733302);the National Key R&D Program of China(Grant 2017YFA0204700);the National Basic Research Program of China,Fundamental Studies of Perovskite Solar Cells(Grant 2015CB932200);the Natural Science Foundation of Jiangsu Province for Distinguished Young Scholars(Grant BK20170042);the Natural Science Foundation of Jiangsu Province(Grants BK20161011 and BK20161010);Young 1000 Talents Global Recruitment Program of China,Jiangsu Specially-Appointed Professor Program,and“Six Talent Peaks”Project in Jiangsu Province,China.

摘　　要：Recently perovskite solar cells(PSCs),as photoelectric conversion devices,exhibit excellent power conversion efficiency(PCE)and low-processing cost,and have become one of the most promising devices to replace conventional silicon-based solar cells and address current pressing energy issues.Among them,the flexible PSCs are especially more widely applicable and may propel the rapid advancements of wearable electronics,causing a significant paradigm shift in consumer electronics.Current flexible PSCs use non-biodegradable petroleum-based polymer substrates,discarding of which will aggravate“white pollution”.Therefore,development of green,biodegradable and low-cost flexible substrates will provide a great alternative to flexible PSCs.Here we have developed transparent nanocellulose paper(NCP)with coating of acrylic resin as substrates to fabricate flexible PSCs,which are biodegradable and easily disposable.The PCE of these NCP-based PSCs reached 4.25%,while the power per weight(the ratio of power to device weight)was as high as 0.56 W g^(–1).The flexible PSCs also showed good stability,retaining>80%of original efficiency after 50 times of bending.The NCP-based substrates can also be applied to other electronic systems,which may prosper next-generation green flexible electronics.

关 键 词：TRANSPARENT PEROVSKITE retaining 

分 类 号：TM9[电气工程—电力电子与电力传动]