静电纺丝制备Zn掺杂的CsPbI_(3)@PS复合纤维薄膜  

Zn-Doped CsPbI_(3)@PS Composite Fiber Films Prepared by Electrospinning

作　　者：李可 施惟恒 林东海 LI Ke;SHI Weiheng;LIN Donghai(School of Energy and Materials,Shanghai Polytechnic University,Shanghai 201209,China;Research Center of Advanced Thermal Functional Materials,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Key Laboratory of Engineering Materials Application and Evaluation,Shanghai Polytechnic University,Shanghai 201209,China)

机构地区：[1]上海第二工业大学能源与材料学院,上海201209 [2]上海第二工业大学上海先进热功能材料工程技术研究中心,上海201209 [3]上海第二工业大学上海市工程材料应用与评价重点实验室,上海201209

出　　处：《上海第二工业大学学报》2022年第3期225-232,共8页Journal of Shanghai Polytechnic University

基　　金：上海市高等学校特聘教授(东方学者);上海市科委扬帆计划(17YF1406600);上海市教委晨光计划(18CG68);上海先进热功能材料工程技术研究中心、上海市材料科学与工程高原学科、上海第二工业大学-美国德雷克塞尔大学(DrexelUniversity)光电与传感联合研究中心资助。

摘　　要：全无机卤化物钙钛矿材料(CsPbX_(3),X=Cl,Br,I)由于其优异的光学性能,在光电领域具有广阔的发展前景,但全无机钙钛矿量子点对水、空气等外界环境特别的敏感限制了其发展。因此,提高全无机钙钛矿量子点的稳定性非常重要。通过掺杂Zn^(2+)取代CsPbX_(3)中的部分Pb,进一步包覆聚苯乙烯(PS),然后利用静电纺丝技术制备出Zn掺杂CsPbI_(3)@PS复合纤维薄膜。CsPbI_(3)纳米晶在聚合物纤维中原位生长,制得的PS电纺薄膜不仅具有CsPbI_(3)钙钛矿量子点的荧光性质,而且其稳定性显著提高,可保存2个月仍具有荧光效果,并且实现其在白光二极管(WLED)器件上的应用。All-inorganic halide perovskite materials(CsPbX_(3),X=Cl,Br,I)have broad development prospects in optoelectronics due to their excellent optical properties.However,the sensitivity of all-inorganic perovskite quantum dots to external environments such as water and air limits their development.Therefore,it is very important to study the stability of all-inorganic perovskite quantum dots.The polystyrene(PS)was further coated by doping Zn^(2+)to replace part of Pb in CsPbX_(3),and then Zn-doped CsPbI_(3)@PS composite fiber films were prepared by electrospinning technology.CsPbI_(3)nanocrystals were grown in situ on polymer fibers.The prepared PS electrospun film not only has CsPbI_(3)fluorescence properties of the perovskite quantum dots,its stability is significantly improved,it can be stored for 2 months and still has fluorescence effect.And it can also realize its application in white light diode(WLED)devices.

关 键 词：钙钛矿量子点 Zn掺杂 静电纺丝 稳定性 

分 类 号：O647[理学—物理化学]