Moisture absorption and TbCl3 doping to CsPbBr3 thin films were investigated to improve the carrier transport properties. We found that post-deposition moisture-absorbing treatment improve the carrier diffusion length of CsPbBr3 thin films. The moisture-absorbing treatments at relative humidity about 20-40% was effective to improve the carrier diffusion lengthy. TbCl3 doping during the thermal evaporation of CsPbBr3 affected structure of the deposited films. Excessive amount of TbCl3 doping leads to form CsPb2Br5 additional phase, but a small amount of TbCl3 doping (1%) can improve the carrier diffusion length. The moisture-absorbing treatment and TbCl3 doping are promising technique to improve the optoelectronic properties of CsPbBr3.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.