Effect of Ga on optical properties of novel Te-based far infrared transmitting chalcogenide glasses | Zendy

Qiuhua Nie | Zendy; Wang Guo-Xiang | Zendy; Xunsi Wang | Zendy; Tiefeng Xu | Zendy; Shixun Dai | Zendy; Xiang Shen | Zendy

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Effect of Ga on optical properties of novel Te-based far infrared transmitting chalcogenide glasses

Author(s) -

Qiuhua Nie,

Wang Guo-Xiang,

Xunsi Wang,

Tiefeng Xu,

Shixun Dai,

Xiang Shen

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.7949

Subject(s) - chalcogenide , materials science , infrared , infrared spectroscopy , absorption (acoustics) , thermal stability , chalcogenide glass , far infrared , quenching (fluorescence) , absorption spectroscopy , spectroscopy , band gap , analytical chemistry (journal) , differential thermal analysis , optoelectronics , optics , fluorescence , diffraction , chemistry , physics , composite material , organic chemistry , chromatography , quantum mechanics

A series of (100-x)(GeTe4)-xGa (x=0, 5, 10 mol%) far infrared transmitting chalcogenide glasses is prepared by the traditional melt-quenching method. In this paper, the differential thermal analysis (DTA), visible/near-infrared absorption spectroscopy, infrared transmission spectra are adopted to analyze composition, structure and performance of the GeTe4 glass system with the addition of Ga. The results show that the Te-Ga bond is formed, which can reduce Te metallic character. When the content of Ga is 10 mol%, the glass is of the best thermal stability. With the addition of Ga, the transmission percentage is improved and infrared cut-off wavelength of the glasses extends beyond 20 μm. Based on the metallization criterion and average bond energy, the relationship between optical band gap and composition is investigated.

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