Optical and gas sensing properties of Al-doped ZnO transparent conducting films prepared by sol–gel method under different heat treatments

Xu, Lingyun; Pan, Kaimeng; Li, Weibo; Hu, Dan; Liu, Shuyang; Wang, Yude

doi:10.1016/j.ceramint.2014.02.090

Cited by 45 publications

(19 citation statements)

References 36 publications

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“…Liu. et al [19] also got the same conclusion as the above. To compare, the gas-sensing properties of the as-prepared macro-/nanoporous AlZnO and other materials in various nanostructures are listed in Table 1.…”

Section: Gas Sensing Property Of the As-synthesized Macro-/nanoporoussupporting

confidence: 78%

“…O − 2ads captures an electron to produce 2O − ads , and thenO − ads reacts with n-butanol when the gas sensors are exposed in the atmosphere of n-butanol, which reduces the amount of O − ads on the surface of Al-ZnO gas sensors and improves electron concentration when the same number of electrons are released. Detailed processes are shown as follows [19,33,43,44]:…”

Section: Gas Sensing Property Of the As-synthesized Macro-/nanoporousmentioning

confidence: 99%

“…Up to now, several methods have been used to prepare Al-doped ZnO materials, such as sol-gel processing [19], hydrothermal method [20], vapor deposition method [18], pulsed laser co-ablation [21], spray plasma technique [22], and so on. The preparation processes play very important roles in tailoring morphological characteristics of gas-sensing materials.…”

Section: Introductionmentioning

confidence: 99%

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Flash synthesis of Al-doping macro-/nanoporous ZnO from self-sustained decomposition of Zn-based complex for superior gas-sensing application to n-butanol

Xing

Chen

et al. 2016

Sensors and Actuators B: Chemical

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Section: Gas Sensing Property Of the As-synthesized Macro-/nanoporoussupporting

confidence: 78%

Section: Gas Sensing Property Of the As-synthesized Macro-/nanoporousmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Flash synthesis of Al-doping macro-/nanoporous ZnO from self-sustained decomposition of Zn-based complex for superior gas-sensing application to n-butanol

Xing

Chen

et al. 2016

Sensors and Actuators B: Chemical

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“…In the case of the ZnO:Al NWs the current is higher (see Figure d). This can be explained based on the increased carrier concentration . The ionic radius of Al 3+ (53 pm) smaller than that of Zn 2+ (74 pm) and acts as a cationic dopant in the ZnO lattice .…”

Section: Resultsmentioning

confidence: 99%

“…It can be performed during the nanostructures growth process with the absence of additional technological steps . Among all potential doped materials, Al‐doped ZnO (AZO) has been widely studied, mainly as thin films, for high performance optoelectronic applications . Al doping is known to enhance the carrier density with a donor‐acceptor system formed by the trivalent Al 3+ occupation of Zn sites, thus greatly enhancing the conductivity .…”

Section: Introductionmentioning

confidence: 99%

Al‐Doped ZnO Nanowires by Electrochemical Deposition for Selective VOC Nanosensor and Nanophotodetector

Pauporté

Lupan

Postica

et al. 2018

Physica Status Solidi (a)

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Nanomaterials for new nanosensor systems with selective detection of hazardous volatile organic compounds (VOCs) vapors are of great demand nowadays. In this paper, the use in nanosensors of electrochemically deposited (ECD) Al‐doped ZnO (ZnO:Al) nanowires (NWs) is reported. The NWs are characterized by micro‐Raman and optical measurements. Individual ZnO and ZnO:Al NWs are integrated into nanosensor devices for room temperature UV and gas sensing. It is shown that, compared to undoped ZnO NW with irreversible response, the doped ZnO:Al NWs have faster response (≈5 s) and recovery (≈55 s), as well as enhanced UV response (≈4.8, about 2 times higher). The room temperature gas sensing investigations demonstrate that an individual ZnO:Al NW can detect volatile organic compounds (VOCs) vapors such as 2‐propanol, n‐butanol and ethanol at room temperature with a relatively fast response time of ≈10 s and a reversible signal (the recovery time being 30–40 s). This shows the possibility to use it with further development as indoor air quality monitor.

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Role of defects and microstructure on the electrical properties of solution-processed Al-doped ZnO transparent conducting films

Anurag

Ahmad

2020

Appl. Phys. A

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Optical and gas sensing properties of Al-doped ZnO transparent conducting films prepared by sol–gel method under different heat treatments

Cited by 45 publications

References 36 publications

Flash synthesis of Al-doping macro-/nanoporous ZnO from self-sustained decomposition of Zn-based complex for superior gas-sensing application to n-butanol

Flash synthesis of Al-doping macro-/nanoporous ZnO from self-sustained decomposition of Zn-based complex for superior gas-sensing application to n-butanol

Al‐Doped ZnO Nanowires by Electrochemical Deposition for Selective VOC Nanosensor and Nanophotodetector

Role of defects and microstructure on the electrical properties of solution-processed Al-doped ZnO transparent conducting films

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