{"title":"Optical Properties of Cuprous Sulfide","authors":"R. Marshall, S. S. Mitra","doi":"10.1063/1.1713966","DOIUrl":null,"url":null,"abstract":"Measurements of transmission and reflection over the ranges 400–10 500 cm−1 and 300–4000 cm−1, respectively, in Cu2S are reported. The bandgap changes from 1.21 eV at 300°K to 1.26 eV at 80°K. The minimum gap is apparently indirect with an effective phonon of frequency ∼280 cm−1 participating. In the region 700–8000 cm−1 the reflection and absorption is characteristic of free carriers. Lattice vibrational bands were observed in the region 400–700 cm−1, arising probably through excitation of the fundamentals and combinations of the zone‐edge frequencies.","PeriodicalId":15088,"journal":{"name":"Journal of Applied Physics","volume":"36 1","pages":"3882-3883"},"PeriodicalIF":2.7000,"publicationDate":"1965-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.1713966","citationCount":"62","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/1.1713966","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 62
Abstract
Measurements of transmission and reflection over the ranges 400–10 500 cm−1 and 300–4000 cm−1, respectively, in Cu2S are reported. The bandgap changes from 1.21 eV at 300°K to 1.26 eV at 80°K. The minimum gap is apparently indirect with an effective phonon of frequency ∼280 cm−1 participating. In the region 700–8000 cm−1 the reflection and absorption is characteristic of free carriers. Lattice vibrational bands were observed in the region 400–700 cm−1, arising probably through excitation of the fundamentals and combinations of the zone‐edge frequencies.
期刊介绍：
The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research.
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