Photoluminescence properties of hybrid perovskites in solar cells with TiO2 and Mg0.2Zn0.8O electron transport layers

Autor:	Aurimas Čerškus, Algirdas Sužiedėlis, Jonas Gradauskas, Steponas Ašmontas, Bonifacas Vengalis, Kazimieras Petrauskas, Anatoliy Serhiyovuch Opanasyuk
Rok vydání:	2020
Předmět:	Photoluminescence Materials science business.industry General Physics and Astronomy Optoelectronics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 0210 nano-technology business 01 natural sciences Electron transport chain 0104 chemical sciences
Zdroj:	Lithuanian Journal of Physics. 60
ISSN:	2424-3647 1648-8504
DOI:	10.3952/physics.v60i3.4304
Popis:	This paper presents a study of the photoluminescence properties of hybrid perovskite films deposited on titanium and magnesium zinc oxide films, as electron transport layers, using the spin-coating technique. The subject of the investigation was continuous wave photoluminescence versus temperature, excitation power and transient photoluminescence. Moreover, the paper discusses possible carrier recombination mechanisms. Complex temporal decay was approximated through the use of several models, but only the four-exponent model and the model using the sum of two hyperbolic functions provided a good agreement with the experimental data. The first attempt to replace titanium dioxide with magnesium zinc oxide in conjunction with the perovskite layer showed improved optical properties such as a weaker non-radiative recombination process and a longer decay time constant.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07d52caeb314dcceebbba62a6146499a https://doi.org/10.3952/physics.v60i3.4304 Zobrazit plný text záznamu