2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel

P. Abimael Jiménez, C. Amanda Carrillo, Shehret Tilvaldyev, Manuel A.L. Quevedo, J. Antonio G. Muñoz

Research output: Research - peer-reviewArticle

Abstract

In this work, the two-dimensional (2D) numerical simulation of p-Type poly-PbS TFT electrical characteristics are performed using a physically based device simulator Atlas/Silvaco. The analytical expressions of defect density models for acceptor-and donor-like traps are defined for poly-PbS thin film material deposited with chemical bath deposition technique. The parameters of defect density model are optimized based on Levenberg-Marquardt algorithm to fit simulated and experimental results of TFTs. It is shown that the spatially uniform density of defect states method used for trapped charge evaluation in Atlas gives good agreement between simulated and experimental characteristics. An important presence of deep (Gaussian) acceptor-and donor-like density of states in poly-PbS band gap is confirmed. By controlling cation (donor-like) and anion (acceptor-like) vacancies of poly-PbS films could improved the performance of p-Type TFTs.

LanguageEnglish (US)
Pages32-39
Number of pages8
JournalInformacije MIDEM
Volume47
Issue number1
StatePublished - Mar 1 2017

Fingerprint

Defect density
Vacancies
Anions
Cations
Energy gap
Simulators
Thin films
Defects
Computer simulation
Negative ions
Positive ions

Keywords

  • Chemical bath deposition
  • Defects
  • Density of states
  • Optimization
  • Simulation
  • Thin film transistor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Abimael Jiménez, P., Amanda Carrillo, C., Tilvaldyev, S., Quevedo, M. A. L., & Muñoz, J. A. G. (2017). 2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel. Informacije MIDEM, 47(1), 32-39.

2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel. / Abimael Jiménez, P.; Amanda Carrillo, C.; Tilvaldyev, Shehret; Quevedo, Manuel A.L.; Muñoz, J. Antonio G.

In: Informacije MIDEM, Vol. 47, No. 1, 01.03.2017, p. 32-39.

Research output: Research - peer-reviewArticle

Abimael Jiménez, P, Amanda Carrillo, C, Tilvaldyev, S, Quevedo, MAL & Muñoz, JAG 2017, '2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel' Informacije MIDEM, vol 47, no. 1, pp. 32-39.
Abimael Jiménez P, Amanda Carrillo C, Tilvaldyev S, Quevedo MAL, Muñoz JAG. 2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel. Informacije MIDEM. 2017 Mar 1;47(1):32-39.
Abimael Jiménez, P. ; Amanda Carrillo, C. ; Tilvaldyev, Shehret ; Quevedo, Manuel A.L. ; Muñoz, J. Antonio G./ 2D Simulation Study of p-Type TFTs with Chemically Deposited Poly-PbS Active Channel. In: Informacije MIDEM. 2017 ; Vol. 47, No. 1. pp. 32-39
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