{"title":"pld生长的Bi2Te3和Sb2Te3光学性质的研究","authors":"Muneer Shaik, I. Abdel-Motaleb","doi":"10.1109/EIT.2013.6632708","DOIUrl":null,"url":null,"abstract":"The optical properties of Bismuth Telluride (Bi2 Te3) and Antimony Telluride (Sb2Te3) thin films grown using pulsed laser deposition (PLD) were investigated. In one set of samples, the two materials were grown, on n-Si substrates, with growth temperatures ranging from 25 to 450°C. In the second set, the films were deposited on microscopic glass slides at 150 °C. The optical properties were studied using Ultra Violet-Visible (UV-Vis) and Fourier Transform Infrared (FTIR) spectroscopy techniques. Absorbance spectra were obtained using UV-Vis spectroscopy, while transmittance spectra were obtained using FTIR spectroscopy. From the FTIR spectra and employing the Tauc plots, the optical band gaps for both materials were obtained. The values of the optical band gaps for Bi2 Te3 are between 0.22-0.26 eV and for Sb2Te3 are between 0.19-0.28 eV.","PeriodicalId":201202,"journal":{"name":"IEEE International Conference on Electro-Information Technology , EIT 2013","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":"{\"title\":\"Investigation of the optical properties of PLD-grown Bi2Te3 and Sb2Te3\",\"authors\":\"Muneer Shaik, I. Abdel-Motaleb\",\"doi\":\"10.1109/EIT.2013.6632708\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The optical properties of Bismuth Telluride (Bi2 Te3) and Antimony Telluride (Sb2Te3) thin films grown using pulsed laser deposition (PLD) were investigated. In one set of samples, the two materials were grown, on n-Si substrates, with growth temperatures ranging from 25 to 450°C. In the second set, the films were deposited on microscopic glass slides at 150 °C. The optical properties were studied using Ultra Violet-Visible (UV-Vis) and Fourier Transform Infrared (FTIR) spectroscopy techniques. Absorbance spectra were obtained using UV-Vis spectroscopy, while transmittance spectra were obtained using FTIR spectroscopy. From the FTIR spectra and employing the Tauc plots, the optical band gaps for both materials were obtained. The values of the optical band gaps for Bi2 Te3 are between 0.22-0.26 eV and for Sb2Te3 are between 0.19-0.28 eV.\",\"PeriodicalId\":201202,\"journal\":{\"name\":\"IEEE International Conference on Electro-Information Technology , EIT 2013\",\"volume\":\"42 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE International Conference on Electro-Information Technology , EIT 2013\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EIT.2013.6632708\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Conference on Electro-Information Technology , EIT 2013","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EIT.2013.6632708","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Investigation of the optical properties of PLD-grown Bi2Te3 and Sb2Te3
The optical properties of Bismuth Telluride (Bi2 Te3) and Antimony Telluride (Sb2Te3) thin films grown using pulsed laser deposition (PLD) were investigated. In one set of samples, the two materials were grown, on n-Si substrates, with growth temperatures ranging from 25 to 450°C. In the second set, the films were deposited on microscopic glass slides at 150 °C. The optical properties were studied using Ultra Violet-Visible (UV-Vis) and Fourier Transform Infrared (FTIR) spectroscopy techniques. Absorbance spectra were obtained using UV-Vis spectroscopy, while transmittance spectra were obtained using FTIR spectroscopy. From the FTIR spectra and employing the Tauc plots, the optical band gaps for both materials were obtained. The values of the optical band gaps for Bi2 Te3 are between 0.22-0.26 eV and for Sb2Te3 are between 0.19-0.28 eV.