OPTICAL METHODS FOR MEASURING IODINE VAPOR DURING MERCURIC IODIDE CRYSTAL-GROWTH BY PHYSICAL VAPOR TRANSPORT

被引：6

作者：

NASON, D ^{[1
]}

BIAO, Y ^{[1
]}

BURGER, A ^{[1
]}

机构：

[1] FISK UNIV,DEPT PHYS,NASA,CTR PHOTON MAT & DEVICES,NASHVILLE,TN 37208

来源：

JOURNAL OF CRYSTAL GROWTH | 1995年 / 146卷 / 1-4期

关键词：

D O I：

10.1016/0022-0248(94)00569-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Optical methods have been established for in-ampoule measurements of the iodine vapor concentration during the growth of mercuric iodide (HgI2) single crystals by physical vapor transport (PVT). Significant concentrations of iodine vapor, which can vary during the growth period, occur in some ampoules. The absorptivity of iodine vapor at 514 nm is 7.7 x 10(5) cm(2) mol(-1). Differential scanning calorimetry (DSC) measurements correlate with vapor absorption and indicate the presence of free crystalline iodine in vapor-grown HgI2.

引用

页码：23 / 28

页数：6

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