Room-temperature synthesis of full-component APbX_(3)perovskite nanocrystal inks for optoelectronic applications  

作　　者：Xinyu Zhao Du Li Xuliang Zhang Hehe Huang Chenyu Zhao Wanli Ma Jianyu Yuan 

机构地区：[1]Institute of Functional Nano&Soft Materials(FUNSOM),Soochow University,Suzhou 215123,Jiangsu,China [2]Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices,Soochow University,Suzhou 215123,Jiangsu,China [3]Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,Jiangsu,Chin

出　　处：《Journal of Energy Chemistry》2024年第5期87-94,共8页能源化学（英文版）

基　　金：financially supported by the National Key Research and Development Program of China(No.2023YFE0210000);the National Natural Science Foundation of China(Nos.52261145696,52073198);the China National Postdoctoral Program for Innovative Talents(No.BX20230255);the Natural Science Foundation of Jiangsu Province(No.BK20211598);the Jiangsu Funding Program for Excellent Postdoctoral Talent(No.2023ZB405);the Science and Technology Program of Suzhou(No.ST202219);the“111”project;the Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University。

摘　　要：Lead halide perovskite nanocrystals(PNCs)have received great research interests due to their excellent optoelectronic properties.However,high temperature,inert gas protection and insulating long-chain ligands are used during the conventional hot-injection synthesis of PNCs,which limits their practical applications.In this work,we first develop a simple and scalable polar-solvent-free method for the preparation of full-component APbX_(3)(A=Cs,methylammonium(MA),formamidinium(FA),X=Cl,Br,I)PNCs under ambient condition.Through an exothermic reaction between butylamine(BA)and propionic acid(PA)short ligands,the PbX_(2) precursors could be well dissolved without use of any polar solvent.Meanwhile,the relatively lower growth rate of PNCs in our room-temperature reaction enables us to modulate the synthetic procedure to enhance the scalability(40-fold)and achieve large-scale synthesis.The resultant short ligands passivated PNC inks are compatible with varying solution depositing technique like spray coating for large-area film.Finally,we showcase that adopting the as-prepared MAPbI_(3) PNC inks,a self-powered photodetector is fabricated and shows a high photoresponsivity.These results demonstrate that our ambient-condition synthetic approach can accelerate the preparation of tunable and ready-to-use PNCs towards commercial optoelectronic applications.

关 键 词：Room-temperaturesynthesis Perovskite nanocrystals Short-chainligands Large-scale PHOTODETECTOR 

分 类 号：TN15[电子电信—物理电子学] TB34[一般工业技术—材料科学与工程]