Abstract
In this paper, the effect of proton and He particle bombardment in CsPbBr3 material was investigated by the Monte Carlo simulation including ion range, backscattering, vacancies and sputtering yield. The energies of proton and He particle varied from 50 keV to 180 keV and the particle incidence angles increased from 0o to 89.9o . The calculated results showed that with the increase of incidence energies, the range and vacancies increased, and the backscattering ions and sputtering yield reduced for proton and He particle. Meanwhile, the vacancies, backscattering ions and sputtering yield induced by He particle were much more proton at the same energy. With the increase of incidence angles, the range and vacancies were reduced, and the sputtering yield increased for proton and He particle. Also, it is obvious that the effects of He particle on CsPbBr3 material were much more serious than proton.
Highlights
Due to the excellent photoelectric performance for the inorganic perovskite material, it is very suitable for application in optoelectronic devices such as light-emitting diodes, solar cells, detectors and lasers, which have attracted extensive attention of researchers[1-3]
Within 50-180 keV, the H ion range in CsPbBr3 was increased from 5398.5 Å to 18215 Å and the He ion range in CsPbBr3 was increased from 4256.5 Å to 11319 Å
The effect of proton and He particle with different energies and angles on ion range, backscattering, vacancies and sputtering yield of CsPbBr3 material was investigated by numerical simulation
Summary
Due to the excellent photoelectric performance for the inorganic perovskite material, it is very suitable for application in optoelectronic devices such as light-emitting diodes, solar cells, detectors and lasers, which have attracted extensive attention of researchers[1-3]. The energy conversion efficiency of solar cells based on perovskite materials have exceeded 20%[5]. It has become a competitive candidate for remote power generation on unmanned aerial vehicles as well as spacecraft. Akkerman et al.[11] was prepare solar cells with the CsPbBr3 quantum dots and achieved photoelectric conversion efficiency of more than 5%. The irradiation effects of CsPbBr3 induced by proton and He are of significant importance to prompt the pervasive application of perovskite solar cells in space environment. This research will help interpreting and understanding the damage mechanism of perovskite materials under irradiation, and might help the perovskite materials move one step closer to space applications
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