A multifunctional interlayer between mesoporous TiO2 and perovskite for perovskite solar cells with high efficiency and stability

IF 2.6 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physica Scripta Pub Date : 2024-09-10 DOI:10.1088/1402-4896/ad7653

Wen-Jie Huang, Zhen-Long Zhang, Yue-Feng Liu, Hui-Ping Gao and Yan-Li Mao

引用次数: 0

Abstract

The industrialization of the perovskite solar cells (PSCs) requires further lifting their power conversion efficiency (PCE). There are some important factors to hinder the PCE improvement, such as interface defects and energy level mismatching betwee electron transport layer (ETL) and perovskite layer, and solar energy loss due to no absorption of near infrared (NIR) for the perovsktie. Thus in this study, a multifunctional material of W-Er-Yb doped TiO2 (W-UC-TiO2) was prepared and applied to PSCs as an interlayer between mesoporous TiO2 and perovskite. The experimental results demonstrate that the interlayer of W-UC-TiO2 has the functions of improving NIR absorption for PSCs, passivating inerface defects and improving energy level matching between TiO2 and perovskite. A high efficiency of 21.32% was acquired for the PSCs with W-UC-TiO2 interlayer from 19.26% for the control device. Moreover, stability of the PSCs was improved by the insertion of W-UC-TiO2 interlayer.

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介孔二氧化钛和过氧化物之间的多功能中间膜，用于制造高效稳定的过氧化物太阳能电池

要实现包晶体太阳能电池（PSCs）的工业化，就必须进一步提高其功率转换效率（PCE）。阻碍提高功率转换效率的一些重要因素包括界面缺陷、电子传输层（ETL）与包晶层之间的能级不匹配，以及包晶层不吸收近红外（NIR）导致的太阳能损失。因此，本研究制备了掺杂 W-Er-Yb 的二氧化钛（W-UC-TiO2）多功能材料，并将其应用于 PSC，作为介孔二氧化钛和过氧化物之间的中间层。实验结果表明，W-UC-TiO2 中间层具有改善 PSCs 的近红外吸收、钝化表面缺陷以及改善 TiO2 和过氧化物之间能级匹配的功能。使用 W-UC-TiO2 夹层的 PSCs 效率高达 21.32%，而对照器件的效率仅为 19.26%。此外，插入 W-UC-TiO2 中间膜还提高了 PSC 的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physica Scripta 物理-物理：综合

CiteScore

3.70

自引率

3.40%

发文量

782

审稿时长

4.5 months

期刊介绍： Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.