{"title":"Physical properties of copper-doped molybdenum oxides for monocrystalline silicon solar cell applications","authors":"Chin-Lung Cheng, Hong-Yuan Lin","doi":"10.1016/j.matlet.2024.137774","DOIUrl":null,"url":null,"abstract":"<div><div>Mo<sub>0.29</sub>Cu<sub>0.01</sub>O<sub>0.70</sub> exhibited a bandgap of 2.9 eV, a work function of 4.46 eV, and an energy level difference (E<sub>F</sub>-E<sub>V</sub>) of 0.97 eV. The study demonstrated that doping copper into molybdenum oxides (Mo<sub>x</sub>Cu<sub>y</sub>O<sub>z</sub>) in monocrystalline silicon solar cells (MSCs) increased the conversion efficiency from 20.5 % to 21.1 %. Additionally, the fixed oxide charge (Q<sub>f</sub>) of Mo<sub>0.29</sub>Cu<sub>0.01</sub>O<sub>0.70</sub> was −3.5 x 10<sup>13</sup> cm<sup>−2</sup>, which improved the back surface field. The proposed Mo<sub>x</sub>Cu<sub>y</sub>O<sub>z</sub> shows greater external quantum efficiency (EQE) enhancement than undoped MoO<sub>x</sub>, consistent with the improved Q<sub>f</sub> of Mo<sub>x</sub>Cu<sub>y</sub>O<sub>z</sub>.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"381 ","pages":"Article 137774"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24019141","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Mo0.29Cu0.01O0.70 exhibited a bandgap of 2.9 eV, a work function of 4.46 eV, and an energy level difference (EF-EV) of 0.97 eV. The study demonstrated that doping copper into molybdenum oxides (MoxCuyOz) in monocrystalline silicon solar cells (MSCs) increased the conversion efficiency from 20.5 % to 21.1 %. Additionally, the fixed oxide charge (Qf) of Mo0.29Cu0.01O0.70 was −3.5 x 1013 cm−2, which improved the back surface field. The proposed MoxCuyOz shows greater external quantum efficiency (EQE) enhancement than undoped MoOx, consistent with the improved Qf of MoxCuyOz.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
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