具有TiO2和Mg0.2Zn0.8O电子传输层的太阳能电池中杂化钙钛矿的光致发光特性

IF 0.3 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Lithuanian Journal of Physics Pub Date : 2020-08-03 DOI:10.3952/physics.v60i3.4304

A. Cerskus, S. Ašmontas, K. Petrauskas, A. Sužiedėlis, J. Gradauskas, A. Opanasyuk, B. Vengalis

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引用次数: 0

摘要

本文采用旋涂技术研究了沉积在钛和镁锌氧化物膜上作为电子传输层的杂化钙钛矿膜的光致发光特性。研究的主题是连续波光致发光与温度、激发功率和瞬态光致发光的关系。此外，本文还讨论了可能的载流子复合机制。通过使用几个模型来近似复时间衰减，但只有四指数模型和使用两个双曲函数之和的模型与实验数据具有很好的一致性。第一次尝试用氧化镁锌代替二氧化钛并结合钙钛矿层显示出改善的光学性质，如较弱的非辐射复合过程和更长的衰变时间常数。PACS：81.10.Dn，84.60.Jt，78.55.-m，78.47.D

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

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. PACS: 81.10.Dn, 84.60.Jt, 78.55.-m, 78.47.D

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来源期刊

Lithuanian Journal of Physics 物理-物理：综合

CiteScore

0.90

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The main aim of the Lithuanian Journal of Physics is to reflect the most recent advances in various fields of theoretical, experimental, and applied physics, including: mathematical and computational physics; subatomic physics; atoms and molecules; chemical physics; electrodynamics and wave processes; nonlinear and coherent optics; spectroscopy.