Industrial Waste Residue Converted into Value-Added ZnO for Optoelectronic Applications

Sofia H. Ferreira; Jonas Deuermeier; Sara Sequeira; Daniela Nunes; Alexandra Gonçalves; Rodrigo Martins; Regina Monteiro; Elvira Fortunato

doi:10.1021/acsaelm.0c00270

Industrial Waste Residue Converted into Value-Added ZnO for Optoelectronic Applications

Sofia H. Ferreira, Jonas Deuermeier, Sara Sequeira, Daniela Nunes, Alexandra Gonçalves, Rodrigo Martins, Regina Monteiro, Elvira Fortunato

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

12 Citations (Scopus)

Abstract

The present study shows a simple, fast, and cost-effective way of converting industrial waste into a lightweight optoelectronic device to detect UV radiation. An innovative recycling process of ZnO-rich (>95% ZnO) residues from the brass industry has been investigated through the preparation of ceramic targets to be used in the deposition of ZnO thin films. A comparison between optical, structural, and morphological properties of ZnO thin films deposited using the sputtering technique on glass and polyimide substrates was carried out. The ZnO thin films deposited on polyimide substrates were used as seed layers for ultrafast growth of ZnO nanorod arrays by hydrothermal method assisted by microwave irradiation. Laser-induced graphene electrodes were fabricated on the polyimide substrates prior to the ZnO thin film deposition for UV sensor characterization. The produced UV sensor exhibits a responsivity around 12 μA/W for UV light of 365 nm under 10 V bias. The photoresponse measurements showed a stable UV sensor without significant variations in the sensor's responsivity when tested for long periods of time.

Original language	English
Pages (from-to)	1960-1969
Number of pages	10
Journal	ACS Applied Electronic Materials
Volume	2
Issue number	7
DOIs	https://doi.org/10.1021/acsaelm.0c00270
Publication status	Published - 28 Jul 2020

Keywords

industrial waste
laser induced graphene
recycling
sputtering targets
UV sensor
zinc oxide

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10.1021/acsaelm.0c00270

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abstract = "The present study shows a simple, fast, and cost-effective way of converting industrial waste into a lightweight optoelectronic device to detect UV radiation. An innovative recycling process of ZnO-rich (>95% ZnO) residues from the brass industry has been investigated through the preparation of ceramic targets to be used in the deposition of ZnO thin films. A comparison between optical, structural, and morphological properties of ZnO thin films deposited using the sputtering technique on glass and polyimide substrates was carried out. The ZnO thin films deposited on polyimide substrates were used as seed layers for ultrafast growth of ZnO nanorod arrays by hydrothermal method assisted by microwave irradiation. Laser-induced graphene electrodes were fabricated on the polyimide substrates prior to the ZnO thin film deposition for UV sensor characterization. The produced UV sensor exhibits a responsivity around 12 μA/W for UV light of 365 nm under 10 V bias. The photoresponse measurements showed a stable UV sensor without significant variations in the sensor's responsivity when tested for long periods of time. ",

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AU - Martins, Rodrigo

AU - Monteiro, Regina

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Industrial Waste Residue Converted into Value-Added ZnO for Optoelectronic Applications

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