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Belaid W, Gezgin SY, Basyooni-M Kabatas MA, Eker YR, Kiliç HŞ. Utilizing Gold Nanoparticle Decoration for Enhanced UV Photodetection in CdS Thin Films Fabricated by Pulsed Laser Deposition: Exploiting Plasmon-Induced Effects. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:416. [PMID: 38470747 DOI: 10.3390/nano14050416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
UV sensors hold significant promise for various applications in both military and civilian domains. However, achieving exceptional detectivity, responsivity, and rapid rise/decay times remains a notable challenge. In this study, we address this challenge by investigating the photodetection properties of CdS thin films and the influence of surface-deposited gold nanoparticles (AuNPs) on their performance. CdS thin films were produced using the pulsed laser deposition (PLD) technique on glass substrates, with CdS layers at a 100, 150, and 200 nm thickness. Extensive characterization was performed to evaluate the thin films' structural, morphological, and optical properties. Photodetector devices based on CdS and AuNPs/CdS films were fabricated, and their performance parameters were evaluated under 365 nm light illumination. Our findings demonstrated that reducing CdS layer thickness enhanced performance concerning detectivity, responsivity, external quantum efficiency (EQE), and photocurrent gain. Furthermore, AuNP deposition on the surface of CdS films exhibited a substantial influence, especially on devices with thinner CdS layers. Among the configurations, AuNPs/CdS(100 nm) demonstrated the highest values in all evaluated parameters, including detectivity (1.1×1012 Jones), responsivity (13.86 A/W), EQE (47.2%), and photocurrent gain (9.2).
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Affiliation(s)
- Walid Belaid
- Department of Physics, Faculty of Science, Selçuk University, Konya 42075, Turkey
| | - Serap Yiğit Gezgin
- Department of Physics, Faculty of Science, Selçuk University, Konya 42075, Turkey
| | - Mohamed A Basyooni-M Kabatas
- Dynamics of Micro and Nano Systems Group, Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
- Solar Research Laboratory, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics, Cairo 11421, Egypt
- Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, Konya 42090, Turkey
| | - Yasin Ramazan Eker
- Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, Konya 42090, Turkey
- Department of Basic Sciences, Faculty of Engineering, Necmettin Erbakan University, Konya 42090, Turkey
| | - Hamdi Şükür Kiliç
- Department of Physics, Faculty of Science, Selçuk University, Konya 42075, Turkey
- Directorate of High Technology Research and Application Center, University of Selçuk, Konya 42031, Turkey
- Directorate of Laser-Induced Proton Therapy Application and Research Center, University of Selçuk, Konya 42031, Turkey
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