Temperature dependence of current–voltage characteristics of MoS2/Si devices prepared by the chemical vapor deposition method

Ting Hong Su, Chia Hung Chiang, Yow Jon Lin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Layers of MoS2 are directly deposited on the n-type Si (n-Si) substrate by chemical vapor deposition for fabricating a MoS2/n-Si heterojunction device. The rectification current–voltage (I–V) characteristics of MoS2/n-Si devices were measured in the temperature range from 80 to 300 K in steps of 20 K. The temperature-dependent forward-bias I–V characteristics can be explained on the basis of the thermionic emission theory by considering the presence of the interfacial inhomogeneous barriers at the MoS2/n-Si interfaces. The dominance of the induced carrier capture/recombination by states at the MoS2/n-Si interface that lead to the formation of the inhomogeneous barriers serves to influence the photo-response at room temperature. The fabricated MoS2/n-Si devices exhibit reversible switching between high and low current densities, when the simulated sunlight is turned on and off. The sensitivity of the I–V characteristics to temperature provides an opportunity to realize stable and reliable rectification behaviors in the MoS2/n-Si devices. It is found that the electron mobility in the n-Si layer reduces as temperature increases, which leads to the noticeably increased value of the series resistance of MoS2/n-Si devices.

Original languageEnglish
Pages (from-to)374-378
Number of pages5
JournalMicroelectronics Reliability
Volume78
DOIs
Publication statusPublished - 2017 Nov 1

Fingerprint

Chemical vapor deposition
vapor deposition
temperature dependence
rectification
heterojunction devices
Temperature
temperature
thermionic emission
sunlight
low currents
Thermionic emission
electron mobility
Electron mobility
high current
Heterojunctions
current density
Current density
sensitivity
room temperature
Substrates

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Safety, Risk, Reliability and Quality
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Cite this

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title = "Temperature dependence of current–voltage characteristics of MoS2/Si devices prepared by the chemical vapor deposition method",
abstract = "Layers of MoS2 are directly deposited on the n-type Si (n-Si) substrate by chemical vapor deposition for fabricating a MoS2/n-Si heterojunction device. The rectification current–voltage (I–V) characteristics of MoS2/n-Si devices were measured in the temperature range from 80 to 300 K in steps of 20 K. The temperature-dependent forward-bias I–V characteristics can be explained on the basis of the thermionic emission theory by considering the presence of the interfacial inhomogeneous barriers at the MoS2/n-Si interfaces. The dominance of the induced carrier capture/recombination by states at the MoS2/n-Si interface that lead to the formation of the inhomogeneous barriers serves to influence the photo-response at room temperature. The fabricated MoS2/n-Si devices exhibit reversible switching between high and low current densities, when the simulated sunlight is turned on and off. The sensitivity of the I–V characteristics to temperature provides an opportunity to realize stable and reliable rectification behaviors in the MoS2/n-Si devices. It is found that the electron mobility in the n-Si layer reduces as temperature increases, which leads to the noticeably increased value of the series resistance of MoS2/n-Si devices.",
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Temperature dependence of current–voltage characteristics of MoS2/Si devices prepared by the chemical vapor deposition method. / Su, Ting Hong; Chiang, Chia Hung; Lin, Yow Jon.

In: Microelectronics Reliability, Vol. 78, 01.11.2017, p. 374-378.

Research output: Contribution to journalArticle

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AU - Su, Ting Hong

AU - Chiang, Chia Hung

AU - Lin, Yow Jon

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N2 - Layers of MoS2 are directly deposited on the n-type Si (n-Si) substrate by chemical vapor deposition for fabricating a MoS2/n-Si heterojunction device. The rectification current–voltage (I–V) characteristics of MoS2/n-Si devices were measured in the temperature range from 80 to 300 K in steps of 20 K. The temperature-dependent forward-bias I–V characteristics can be explained on the basis of the thermionic emission theory by considering the presence of the interfacial inhomogeneous barriers at the MoS2/n-Si interfaces. The dominance of the induced carrier capture/recombination by states at the MoS2/n-Si interface that lead to the formation of the inhomogeneous barriers serves to influence the photo-response at room temperature. The fabricated MoS2/n-Si devices exhibit reversible switching between high and low current densities, when the simulated sunlight is turned on and off. The sensitivity of the I–V characteristics to temperature provides an opportunity to realize stable and reliable rectification behaviors in the MoS2/n-Si devices. It is found that the electron mobility in the n-Si layer reduces as temperature increases, which leads to the noticeably increased value of the series resistance of MoS2/n-Si devices.

AB - Layers of MoS2 are directly deposited on the n-type Si (n-Si) substrate by chemical vapor deposition for fabricating a MoS2/n-Si heterojunction device. The rectification current–voltage (I–V) characteristics of MoS2/n-Si devices were measured in the temperature range from 80 to 300 K in steps of 20 K. The temperature-dependent forward-bias I–V characteristics can be explained on the basis of the thermionic emission theory by considering the presence of the interfacial inhomogeneous barriers at the MoS2/n-Si interfaces. The dominance of the induced carrier capture/recombination by states at the MoS2/n-Si interface that lead to the formation of the inhomogeneous barriers serves to influence the photo-response at room temperature. The fabricated MoS2/n-Si devices exhibit reversible switching between high and low current densities, when the simulated sunlight is turned on and off. The sensitivity of the I–V characteristics to temperature provides an opportunity to realize stable and reliable rectification behaviors in the MoS2/n-Si devices. It is found that the electron mobility in the n-Si layer reduces as temperature increases, which leads to the noticeably increased value of the series resistance of MoS2/n-Si devices.

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