Transparent gas senor and photodetector based on Al doped ZnO nanowires synthesized on glass substrate

Cheng Liang Hsu; Duo Xi Hsu; Ting Jen Hsueh; Sheng Po Chang; Shoou Jinn Chang

doi:10.1016/j.ceramint.2017.01.035

Transparent gas senor and photodetector based on Al doped ZnO nanowires synthesized on glass substrate

Cheng Liang Hsu, Duo Xi Hsu, Ting Jen Hsueh, Sheng Po Chang, Shoou Jinn Chang

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

In this work high density, well-aligned Al doped ZnO (AZO) nanowires are hydrothermally synthesized on glass substrate at 99 °C. The Al content is ~1.57 at%. The PL spectrum shows that Al impurities caused an increase in the number of oxygen vacancies. The spectral response results show that the maximum responsivity and quantum efficiencies η of AZO NWs are 3.61 A/W and 84.9%, at an incident light wavelength of 360 nm. These AZO NWs have less humidity sensitivity, thus decreasing the effect of humidity effect on gas sensing. Low gas concentrations of 10 ppm ethanol and 10 ppm acetone can be detected with good responses of 24.5% and 21.2%, using the AZO NW sensor at 200 °C and with 0.1 V applied bias.

Original language	English
Pages (from-to)	5434-5440
Number of pages	7
Journal	Ceramics International
Volume	43
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2017.01.035
Publication status	Published - 2017 May 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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title = "Transparent gas senor and photodetector based on Al doped ZnO nanowires synthesized on glass substrate",

abstract = "In this work high density, well-aligned Al doped ZnO (AZO) nanowires are hydrothermally synthesized on glass substrate at 99 °C. The Al content is ~1.57 at%. The PL spectrum shows that Al impurities caused an increase in the number of oxygen vacancies. The spectral response results show that the maximum responsivity and quantum efficiencies η of AZO NWs are 3.61 A/W and 84.9%, at an incident light wavelength of 360 nm. These AZO NWs have less humidity sensitivity, thus decreasing the effect of humidity effect on gas sensing. Low gas concentrations of 10 ppm ethanol and 10 ppm acetone can be detected with good responses of 24.5% and 21.2%, using the AZO NW sensor at 200 °C and with 0.1 V applied bias.",

author = "Hsu, {Cheng Liang} and Hsu, {Duo Xi} and Hsueh, {Ting Jen} and Chang, {Sheng Po} and Chang, {Shoou Jinn}",

note = "Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan, for financially supporting this research under Contract No. MOST 105?2221-E-024-015-.",

year = "2017",

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doi = "10.1016/j.ceramint.2017.01.035",

language = "English",

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journal = "Ceramics International",

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T1 - Transparent gas senor and photodetector based on Al doped ZnO nanowires synthesized on glass substrate

AU - Hsu, Cheng Liang

AU - Hsu, Duo Xi

AU - Hsueh, Ting Jen

AU - Chang, Sheng Po

AU - Chang, Shoou Jinn

N1 - Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan, for financially supporting this research under Contract No. MOST 105?2221-E-024-015-.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - In this work high density, well-aligned Al doped ZnO (AZO) nanowires are hydrothermally synthesized on glass substrate at 99 °C. The Al content is ~1.57 at%. The PL spectrum shows that Al impurities caused an increase in the number of oxygen vacancies. The spectral response results show that the maximum responsivity and quantum efficiencies η of AZO NWs are 3.61 A/W and 84.9%, at an incident light wavelength of 360 nm. These AZO NWs have less humidity sensitivity, thus decreasing the effect of humidity effect on gas sensing. Low gas concentrations of 10 ppm ethanol and 10 ppm acetone can be detected with good responses of 24.5% and 21.2%, using the AZO NW sensor at 200 °C and with 0.1 V applied bias.

AB - In this work high density, well-aligned Al doped ZnO (AZO) nanowires are hydrothermally synthesized on glass substrate at 99 °C. The Al content is ~1.57 at%. The PL spectrum shows that Al impurities caused an increase in the number of oxygen vacancies. The spectral response results show that the maximum responsivity and quantum efficiencies η of AZO NWs are 3.61 A/W and 84.9%, at an incident light wavelength of 360 nm. These AZO NWs have less humidity sensitivity, thus decreasing the effect of humidity effect on gas sensing. Low gas concentrations of 10 ppm ethanol and 10 ppm acetone can be detected with good responses of 24.5% and 21.2%, using the AZO NW sensor at 200 °C and with 0.1 V applied bias.

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EP - 5440

JO - Ceramics International

JF - Ceramics International

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Transparent gas senor and photodetector based on Al doped ZnO nanowires synthesized on glass substrate

Abstract

All Science Journal Classification (ASJC) codes

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