Effect of oxygen vacancy ratio on a GaZTO solar-blind photodetector

Jhih Chun Syu, Ming Hung Hsu, Sheng Po Chang, Shoou Jinn Chang, Lucent Lu

研究成果: Article

1 引文 (Scopus)

摘要

A gallium-zinc-tin-oxide (GaZTO) solar-blind photodetector was fabricated via radio frequency sputtering. The transmittance of the GaZTO thin film was > 80% in the visible light region, and its energy bandgap ranged from 4.11 to 4.23 eV. Manipulating the oxygen flows changed the ratio of oxygen vacancies, which was confirmed by X-ray photoelectron spectroscopy. The ratio of oxygen vacancies in the GaZTO thin films impacted the performance of the photodetectors. The photocurrent, responsivity, and ultraviolet-visible rejection ratio of the GaZTO solar-blind photodetector were 1.23 × 10-6 A, 9.12 × 10-2 A/W, and 3.48 × 104, respectively, at a 10 V bias under 280 nm light illumination. The transient responses of the synthesized photodetectors were measured and discussed.

原文English
文章編號293
期刊Coatings
8
發行號9
DOIs
出版狀態Published - 2018 一月 1

指紋

Gallium
Oxygen vacancies
Photodetectors
Zinc oxide
Tin oxides
zinc oxides
tin oxides
gallium
photometers
oxygen
Oxide films
Thin films
transient response
thin films
Photocurrents
Transient analysis
rejection
Sputtering
photocurrents
transmittance

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

引用此文

Syu, Jhih Chun ; Hsu, Ming Hung ; Chang, Sheng Po ; Chang, Shoou Jinn ; Lu, Lucent. / Effect of oxygen vacancy ratio on a GaZTO solar-blind photodetector. 於: Coatings. 2018 ; 卷 8, 編號 9.
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abstract = "A gallium-zinc-tin-oxide (GaZTO) solar-blind photodetector was fabricated via radio frequency sputtering. The transmittance of the GaZTO thin film was > 80{\%} in the visible light region, and its energy bandgap ranged from 4.11 to 4.23 eV. Manipulating the oxygen flows changed the ratio of oxygen vacancies, which was confirmed by X-ray photoelectron spectroscopy. The ratio of oxygen vacancies in the GaZTO thin films impacted the performance of the photodetectors. The photocurrent, responsivity, and ultraviolet-visible rejection ratio of the GaZTO solar-blind photodetector were 1.23 × 10-6 A, 9.12 × 10-2 A/W, and 3.48 × 104, respectively, at a 10 V bias under 280 nm light illumination. The transient responses of the synthesized photodetectors were measured and discussed.",
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Effect of oxygen vacancy ratio on a GaZTO solar-blind photodetector. / Syu, Jhih Chun; Hsu, Ming Hung; Chang, Sheng Po; Chang, Shoou Jinn; Lu, Lucent.

於: Coatings, 卷 8, 編號 9, 293, 01.01.2018.

研究成果: Article

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T1 - Effect of oxygen vacancy ratio on a GaZTO solar-blind photodetector

AU - Syu, Jhih Chun

AU - Hsu, Ming Hung

AU - Chang, Sheng Po

AU - Chang, Shoou Jinn

AU - Lu, Lucent

PY - 2018/1/1

Y1 - 2018/1/1

N2 - A gallium-zinc-tin-oxide (GaZTO) solar-blind photodetector was fabricated via radio frequency sputtering. The transmittance of the GaZTO thin film was > 80% in the visible light region, and its energy bandgap ranged from 4.11 to 4.23 eV. Manipulating the oxygen flows changed the ratio of oxygen vacancies, which was confirmed by X-ray photoelectron spectroscopy. The ratio of oxygen vacancies in the GaZTO thin films impacted the performance of the photodetectors. The photocurrent, responsivity, and ultraviolet-visible rejection ratio of the GaZTO solar-blind photodetector were 1.23 × 10-6 A, 9.12 × 10-2 A/W, and 3.48 × 104, respectively, at a 10 V bias under 280 nm light illumination. The transient responses of the synthesized photodetectors were measured and discussed.

AB - A gallium-zinc-tin-oxide (GaZTO) solar-blind photodetector was fabricated via radio frequency sputtering. The transmittance of the GaZTO thin film was > 80% in the visible light region, and its energy bandgap ranged from 4.11 to 4.23 eV. Manipulating the oxygen flows changed the ratio of oxygen vacancies, which was confirmed by X-ray photoelectron spectroscopy. The ratio of oxygen vacancies in the GaZTO thin films impacted the performance of the photodetectors. The photocurrent, responsivity, and ultraviolet-visible rejection ratio of the GaZTO solar-blind photodetector were 1.23 × 10-6 A, 9.12 × 10-2 A/W, and 3.48 × 104, respectively, at a 10 V bias under 280 nm light illumination. The transient responses of the synthesized photodetectors were measured and discussed.

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