Optical Properties of Cuprous Sulfide

IF 2.7 3区物理与天体物理 Q2 PHYSICS, APPLIED

Journal of Applied Physics Pub Date : 1965-12-01 DOI:10.1063/1.1713966

R. Marshall, S. S. Mitra

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.

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硫化亚铜的光学性质

报道了Cu2S在400-10 - 500 cm−1和300-4000 cm−1范围内的透射和反射测量结果。带隙从300°K时的1.21 eV变化到80°K时的1.26 eV。最小间隙显然是间接的，频率为~ 280 cm−1的有效声子参与其中。在700 ~ 8000cm−1区域，反射和吸收表现为自由载流子的特征。在400-700 cm−1区域观察到点阵振动带，可能是由基元的激发和带边频率的组合引起的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Physics 物理-物理：应用

CiteScore

5.40

自引率

9.40%

发文量

1534

审稿时长

2.3 months

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. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces