The characterization of stacked α-Si/SiGe/α-Si sensing membrane

Chia Ming Yang*, Chao Sung Lai, Chih Yao Wang, Cheng En Lue, Jung Chung Chou, Wen Yaw Chung, Dorota G. Pijanowska

*此作品的通信作者

研究成果: Conference article同行評審

3 引文 斯高帕斯(Scopus)

摘要

In this work, the stacked α-Si/SiGe/α-Si film was first used as ion sensing membrane of Electrolyte-Insulator-Semiconductor. All sensing membranes were deposited in low pressure chemical vapor deposition with GeH 4 and Si2H6 mixtures. Comparing to α-Si sensing membrane, the characteristics of the α-Si/SiGe/α-Si sensing membrane were studied including pH sensitivity and drift phenomena. The pH sensitivity of α-Si/SiGe/α-Si and α-Si EIS was 83.1 ± 2.1 and 76.8 ± 2.2mV/pH, respectively. However, the drift voltage was a little large and resulted in the unstable sensitivity. A physical model was proposed for the unstable sensitivity phenomena. This unstable phenomenon was eliminated by baking treatment.

原文English
頁(從 - 到)46-49
頁數4
期刊Microelectronic Engineering
80
發行號SUPPL.
DOIs
出版狀態Published - 17 6月 2005
事件14th Biennial Conference on Insulating Films on Semiconductors -
持續時間: 22 6月 200524 6月 2005

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