典型文献
Scanning the optical characteristics of lead-free cesium titanium bromide double perovskite nanocrystals
文献摘要：
Cs2TiBr6 nanocrystals(NCs)are a type of promising optoelectronic materials,owing to their high photoelectric prop-erties and non-toxicity.Here,we synthesize the colloidal Cs2TiBr6 NCs using a hot-injection approach.The temperature-dependent absorption data shows that its energy band changes about 30 meV with temperature,reflecting that its energy band structure is much stable.The excitation intensity-dependent transient absorption data confirms its linear absorption cross-sections and carrier recombination rate constants,involving monomolecular and bimolecular recombination,which are all superior to those of conventional perovskite bromide counterparts.In addition,its nonlinear absorption cross-sections are also measured based on femtosecond Z-scan.Our results suggest that Cs2TiBr6 NCs can be extensively applied in the field of optoelectronics,owing to its excellent carrier dynamics and nonlinear optical properties.
文献关键词：
中图分类号：
作者姓名：
Chenxi Yu;Long Gao;Wentong Li;Qian Wang;Meng Wang;Jiaqi Zhang
作者机构：
Key Laboratory of Automobile Materials,Ministry of Education,College of Materials Science and Engineering,Jilin University,Changchun 130012,China
文献出处：
引用格式：
[1]Chenxi Yu;Long Gao;Wentong Li;Qian Wang;Meng Wang;Jiaqi Zhang-.Scanning the optical characteristics of lead-free cesium titanium bromide double perovskite nanocrystals)[J].中国物理B（英文版）,2022(05):61-65
A类：
Cs2TiBr6,monomolecular
B类：
Scanning,optical,characteristics,lead,free,cesium,titanium,bromide,double,perovskite,nanocrystals,NCs,are,type,promising,materials,owing,their,high,photoelectric,toxicity,Here,we,synthesize,colloidal,using,injection,approach,temperature,dependent,absorption,data,shows,that,its,energy,band,changes,about,meV,reflecting,structure,much,stable,excitation,intensity,transient,confirms,cross,sections,carrier,recombination,rate,constants,involving,bimolecular,which,all,superior,those,conventional,counterparts,In,addition,nonlinear,also,measured,femtosecond,scan,Our,results,suggest,be,extensively,applied,field,optoelectronics,excellent,dynamics,properties
AB值：
0.602429
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