Abstract
In this study, we describe composited perovskite films based on the doping of lead cesium triiodide (CsPbI3) quantum dots (QDs) into methylammonium lead iodide (MAPbI3). CsPbI3 QDs and MAPbI3 were prepared by ligand-assisted re-precipitation and solution mixing, respectively. These films were optimized by oxygen plasma treatment, and the effect of powers from 0 to 80 W on the structural properties of the composited perovskite films is discussed. The experimental results showed that the light-harvesting ability of the films was enhanced at 20 W. The formation of the metastable state (lead(II) oxide and lead tetroxide) was demonstrated by peak differentiation-imitating. A low power enhanced the quality of the films due to the removal of organic impurities, whereas a high power caused surface damage in the films owing to the severe degradation of MAPbI3.
Highlights
Over the past several years, the study of inorganic halide perovskite as an optoelectronics material has gained significant consideration because of its extensive waveband absorption and unique structural properties [1,2,3,4]
We describe composite perovskite films based on doping of CsPbI3 quantum dots (QDs) into MAPbI3
Compared to the pure MAPbI3 films, composited perovskite films demonstrate obvious absorption bands at 750 nm, proving that their light-harvesting ability in the long-wavelength range is enhanced by doping CsPbI3 QDs
Summary
Over the past several years, the study of inorganic halide perovskite as an optoelectronics material has gained significant consideration because of its extensive waveband (near-infrared) absorption and unique structural properties [1,2,3,4]. In 2016, supersaturated recrystallization (known as LARP) was firstly reported by Xiaoming Li [10] It is operated at room temperature, occurs within few seconds, and does not require inert gas and injection. The LARP method to synthesize QDs with L-type ligands is preferred over other methods because it does not present the problems linked to X-type ligands. We describe composite perovskite films based on doping of CsPbI3 QDs into MAPbI3. This innovative film, proposed as a potential material, is optimized by oxygen plasma treatment at different powers, and formation mechanism as well as its structural properties are investigated
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
