Charge-density flux model for electric-field-assisted ion exchange in glass

Weiwei Zheng; Bing Yang; Yinlei Hao; Minghua Wang; Xiaoqing Jiang; Jianyi Yang

doi:10.1117/1.3628558

1 September 2011 Charge-density flux model for electric-field-assisted ion exchange in glass

Weiwei Zheng, Bing Yang, Yinlei Hao, Minghua Wang, Xiaoqing Jiang, Jianyi Yang

Author Affiliations +

Optical Engineering, Vol. 50, Issue 9, 094602 (September 2011). https://doi.org/10.1117/1.3628558

Abstract

A model based on the charge-density flux (CDF) is proposed for the electric-field-assisted (EFA) ion-exchange, which is suitable for various EFA ion exchanging processes. Theoretical analysis shows that the CDF model is equivalent to the voltage model when the local temperature change around the glass wafer is negligible when a constant voltage is applied to the ion exchanging process. However, our experiments show that the CDF model is more applicable than the voltage model because the constant-voltage scheme shows a positive feedback process and the local temperature rising is unavoidable in the ion exchanging process. Our further experiments also show that the EFA ion exchanging process can be conveniently characterized by the proposed CDF model with the monitored electrical current, no matter the EFA ion exchanging process is with a constant-voltage/current scheme, a mixed scheme, or even a scheme with random voltage change, while additional complicated measures will be required to characterize the EFA ion exchanging process with the traditional voltage model.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Weiwei Zheng, Bing Yang, Yinlei Hao, Minghua Wang, Xiaoqing Jiang, and Jianyi Yang "Charge-density flux model for electric-field-assisted ion exchange in glass," Optical Engineering 50(9), 094602 (1 September 2011). https://doi.org/10.1117/1.3628558

Published: 1 September 2011

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