The Copper Oxide with Alkali Potassium Dopant for Heterojunction Solar Cells Application

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Electronic Materials Letters Pub Date : 2024-03-23 DOI:10.1007/s13391-024-00490-3

Katarzyna Gawlińska-Nęcek, Zbigniew Starowicz, Marta Janusz-Skuza, Anna Jarzębska, Piotr Panek

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Abstract

This work aimed to produce a low resistive copper oxide nanolayer with potassium admixture by a simple spray coating technique. The different concentration of dopant (2–20 wt%) was tested. It was found that 14 wt% of potassium reduced the resistivity of copper oxide from 21 Ω cm for reference layer to 5 Ω cm for doped thin film. The phase composition as well as the optical, and electrical properties of manufactured oxides were studied. It was found that potassium admixture affects the phase composition of manufactured thin film which turns from CuO to Cu₂O. This is accompanied by a widening of the optical band gap energy of the oxide. The roughness of the layer also increased. The photovoltaic properties of produced copper oxides were tested in n–i–p heterojunction with n-type Cz-Si and as a final product the solar cells with open circuit voltage of 296 mV and short circuit current density of 0.78 mA/cm² was fabricated.

Graphical Abstract

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含碱钾掺杂剂的氧化铜在异质结太阳能电池中的应用

摘要本研究旨在通过简单的喷涂技术制备一种掺有钾的低电阻纳米氧化铜层。测试了不同浓度的掺杂剂（2-20 wt%）。结果发现，14 wt% 的钾能将氧化铜的电阻率从参考层的 21 Ω cm 降低到掺杂薄膜的 5 Ω cm。对制造的氧化物的相组成、光学和电学特性进行了研究。研究发现，钾的掺入会影响人造薄膜的相组成，使其从 CuO 转变为 Cu2O。同时，氧化物的光带隙能也随之变宽。薄膜层的粗糙度也有所增加。在与 n 型 Cz-Si 的 ni-p 异质结中测试了所制得的铜氧化物的光伏特性，最终制成了开路电压为 296 mV、短路电流密度为 0.78 mA/cm2 的太阳能电池。图表摘要

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来源期刊

Electronic Materials Letters 工程技术-材料科学：综合

CiteScore

4.70

自引率

20.80%

发文量

审稿时长

2.3 months

期刊介绍： Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.