Acta Photonica Sinica, Volume. 41, Issue 6, 718(2012)
Investigation of GeGeSe2In2Se3AgI Chalcogenide Glasses
(100-x)(4GeSe2In2Se3)-xAgI (x=20,30,40 mol%) chalcogenide glasses were prepared by traditional meltquenching method. In this paper, the Xray diffraction(XRD),differential thermal analysis (DTA), visible/nearinfrared absorption spectroscopy, infrared transmission spectra,Raman analysis were adopt to the analysis of the relationships of the composition, structure, thermal stability, and optical properties of the GeSe2In2Se3AgI ternary glass system. The Tauc equation was used to calculate the indirect optical band gap. From the heatingrate dependence of crystallization temperature, the activation energy for crystallization(E) was calculated by the Kissinger equation.The glass samples are amorphous, resulting in a wide composition range of glass formation. A maximum ΔT value of 114℃ and the activation energy for crystallization(Ea=320.4 kJ/mol) were obtained for the glass composition 70(4GeSe2In2Se3) 30AgI. With the addition of AgI, the shortwave absorption of the glasses shifts to the shorter wavelength and the optical band gap increases. In addition, the infrared transmission spectra shows that these prepared glasses all have wide optical transmission and there has been no significant change in infrared cutoff wavelength of the glasses which are all 16 μm or so.
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WANG Yonghui, CHEN Fen, WANG Guoxiang, SHEN Xiang, ZHOU Yaxun, LI Jun, DAI Shixun. Investigation of GeGeSe2In2Se3AgI Chalcogenide Glasses[J]. Acta Photonica Sinica, 2012, 41(6): 718
Received: Jan. 9, 2012
Accepted: --
Published Online: Jun. 19, 2012
The Author Email: Yonghui WANG (wangyonghui.886@163.com)