硫族化物玻璃测辐射热计。

Chalcogenide glass bolometers.

作者信息

Bishop S G, Moore W J

出版信息

Appl Opt. 1973 Jan 1;12(1):80-3. doi: 10.1364/AO.12.000080.

DOI:10.1364/AO.12.000080

PMID:20125232

Abstract

The chalcogenide glass Tl(2)SeAs(2) Te(3) has been evaluated as a thermistor bolometer material for room temperature operation. Thin film bolometers were fabricated on mica, glass, and sapphire substrates by both hot-pressing and rf sputtering techniques. Best results were achieved with 10-micro thick Tl(2)SeAs(2) Te(3) elements on thin mica substrates. Using a 500 K blackbody at a 10-Hz chopping frequency, a 2.5 x10(_3)cm(2) device yielded an NEP of 2.3 x 10(_9) W Hz(_4) cm(-2) device achieved an NEP of 7.7 x 10(-10) W Hz(-1/2) The ac performance of these devices is limited by their inherently long response times (tau congruent with 1 sec).

摘要

硫族化物玻璃Tl(2)SeAs(2)Te(3)已被评估作为一种用于室温操作的热敏电阻测辐射热计材料。通过热压和射频溅射技术在云母、玻璃和蓝宝石衬底上制备了薄膜测辐射热计。在薄云母衬底上的10微米厚的Tl(2)SeAs(2)Te(3)元件取得了最佳结果。使用500K黑体，在10赫兹斩波频率下，一个2.5×10(_3)平方厘米的器件产生的噪声等效功率为2.3×10(_9)瓦·赫兹(_4)平方厘米，一个器件实现的噪声等效功率为7.7×10(-10)瓦·赫兹(-1/2)。这些器件的交流性能受到其固有的长响应时间（τ约为1秒）的限制。