A closed form analytical model for threshold switching mechanism of chalcogenide-based devices

Chunsheng Jiang; Xingchen Xin; Hongying Chen

doi:10.1117/12.2625793

27 March 2022 A closed form analytical model for threshold switching mechanism of chalcogenide-based devices

Chunsheng Jiang, Xingchen Xin, Hongying Chen

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121699Z (2022) https://doi.org/10.1117/12.2625793
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In this work, an analytical current-voltage (I-V) model of chalcogenide-based devices has been proposed by solving the thermally assisted hopping conduction and energy transfer equations. The subthreshold current and threshold voltage could be predicted by this model. Next, the well-known and experimental linear relationship between threshold voltage and thickness of chalcogenide glass has been deduced from the analytical model directly and the underlying physics of threshold switching is also elaborated according to the model. Besides, the constant-power condition of threshold switching point is also derived from the proposed model. The calculated results from the analytical model agree well with the numerical calculation. The proposed model can help in the design optimization and simulation of nanoscale phase-change memories, relaxation oscillations, and steep slope transistors based on chalcogenide glass materials.

Citation Download Citation

Chunsheng Jiang, Xingchen Xin, and Hongying Chen "A closed form analytical model for threshold switching mechanism of chalcogenide-based devices", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121699Z (27 March 2022); https://doi.org/10.1117/12.2625793

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available