Fabrication and Characterization of CdTe-Doped SnO2 Thin Films Deposited by Pulsed Laser Deposition: Structural, Optical, Morphological, and Electrical Properties
{"title":"Fabrication and Characterization of CdTe-Doped SnO2 Thin Films Deposited by Pulsed Laser Deposition: Structural, Optical, Morphological, and Electrical Properties","authors":"Mustafa Basil Hayawi, Qasim Hammadi Mahmoud","doi":"10.1007/s11182-026-03714-1","DOIUrl":null,"url":null,"abstract":"<div><p>This study fabricated SnO<sub>2</sub> thin films doped with CdTe using pulsed laser deposition under vacuum. The influence of CdTe doping on structural, morphological, optical, and electrical properties was evaluated. X‑ray diffraction confirmed polycrystalline tetragonal SnO<sub>2</sub> with preferred (110) orientation, while the higher (20–40%) CdTe content produced additional peaks relating to CdTe phases. The crystallite size ranged from 29.8 to 33.8 nm, depending on the dopant concentration. SEM images showed irregular, mainly spherical grains with no major morphological change after doping. UV–Vis results indicated a reduced bandgap from 2.799 to 2.111 eV. I–V characteristics improved significantly, with the current increasing from 1.209·10<sup>−6</sup> A (pure SnO<sub>2</sub>) to 3.56·10<sup>−3</sup> A (20% CdTe) at 100 mW.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 3","pages":"344 - 354"},"PeriodicalIF":0.8000,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Physics Journal","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11182-026-03714-1","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study fabricated SnO2 thin films doped with CdTe using pulsed laser deposition under vacuum. The influence of CdTe doping on structural, morphological, optical, and electrical properties was evaluated. X‑ray diffraction confirmed polycrystalline tetragonal SnO2 with preferred (110) orientation, while the higher (20–40%) CdTe content produced additional peaks relating to CdTe phases. The crystallite size ranged from 29.8 to 33.8 nm, depending on the dopant concentration. SEM images showed irregular, mainly spherical grains with no major morphological change after doping. UV–Vis results indicated a reduced bandgap from 2.799 to 2.111 eV. I–V characteristics improved significantly, with the current increasing from 1.209·10−6 A (pure SnO2) to 3.56·10−3 A (20% CdTe) at 100 mW.
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
