Ag@WO3 core–shell nanocomposite for wide range photo detection
Abstract This study successfully synthesized high-performance photodetectors based on Ag-WO3 core–shell heterostructures using a simple and economical two-step pulsed laser ablation in water method and has investigated the electrical characteristics of the Ag@WO3 nanocomposite heterojunction. The Ha...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-73360-5 |
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| author | Jehan A. Saimon Evan T. Salim Mustafa Hadi Amin Makram A. Fakhri Ahmad S. Azzahrani Ali B. M. Ali Subash C. B. Gopinath |
| author_facet | Jehan A. Saimon Evan T. Salim Mustafa Hadi Amin Makram A. Fakhri Ahmad S. Azzahrani Ali B. M. Ali Subash C. B. Gopinath |
| author_sort | Jehan A. Saimon |
| collection | DOAJ |
| description | Abstract This study successfully synthesized high-performance photodetectors based on Ag-WO3 core–shell heterostructures using a simple and economical two-step pulsed laser ablation in water method and has investigated the electrical characteristics of the Ag@WO3 nanocomposite heterojunction. The Hall effect tests indicate that the synthesized Ag@WO3 exhibits n-type conduction with a Hall mobility of 1.25 × 103 cm2V-1S-1. Dark current–voltage properties indicated that the created heterojunctions displayed rectification capabilities, with the highest rectification factor of around 1.71 seen at a 5 V bias. A photodetector’s responsivity reveals the existence of two response peaks, which are situated in the ultraviolet and visible region. The photodetector demonstrates a rapid response time of less than 100 ms. The detectivity values for wavelengths of 350 nm and 490 nm were 35 × 1013 Jones and 28 × 1013 Jones, respectively. The n-Ag-WO3/n-Si photodetector achieved a maximum EQE of 11.5% in the ultraviolet wavelength when subjected to 3 V and illuminated with 350 nm (26 mW/cm2) light. The devices demonstrate rapid switching behavior with a rise time of 0.32 s and a fall time of 0.33 s. The time-dependent light response of a photodetector under illumination at 26 mW/cm2 is seen at a bias of 3 V. The light exhibits a rise and decay duration of 15 s, while the photocurrent gain is measured at 9µA. The photocurrent of devices exhibited a positive correlation with the incoming light intensity, suggesting that the junction has the potential to function as a photo detector. |
| format | Article |
| id | doaj-art-3ef29e6d5f744133b2c21ec5e6d4a8f6 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-3ef29e6d5f744133b2c21ec5e6d4a8f62024-11-17T12:19:55ZengNature PortfolioScientific Reports2045-23222024-11-0114111510.1038/s41598-024-73360-5Ag@WO3 core–shell nanocomposite for wide range photo detectionJehan A. Saimon0Evan T. Salim1Mustafa Hadi Amin2Makram A. Fakhri3Ahmad S. Azzahrani4Ali B. M. Ali5Subash C. B. Gopinath6Applied Science Department, University of TechnologyApplied Science Department, University of TechnologyInstitute of Laser for Postgraduate Studies, University of BaghdadLaser and Optoelectronic Department, University of TechnologyElectrical Engineering Department, Northern Border UniversityAir Conditioning Engineering Department, Faculty of Engineering, Warith Al-Anbiyaa UniversityCenter for Global Health Research, Saveetha Medical College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS)Abstract This study successfully synthesized high-performance photodetectors based on Ag-WO3 core–shell heterostructures using a simple and economical two-step pulsed laser ablation in water method and has investigated the electrical characteristics of the Ag@WO3 nanocomposite heterojunction. The Hall effect tests indicate that the synthesized Ag@WO3 exhibits n-type conduction with a Hall mobility of 1.25 × 103 cm2V-1S-1. Dark current–voltage properties indicated that the created heterojunctions displayed rectification capabilities, with the highest rectification factor of around 1.71 seen at a 5 V bias. A photodetector’s responsivity reveals the existence of two response peaks, which are situated in the ultraviolet and visible region. The photodetector demonstrates a rapid response time of less than 100 ms. The detectivity values for wavelengths of 350 nm and 490 nm were 35 × 1013 Jones and 28 × 1013 Jones, respectively. The n-Ag-WO3/n-Si photodetector achieved a maximum EQE of 11.5% in the ultraviolet wavelength when subjected to 3 V and illuminated with 350 nm (26 mW/cm2) light. The devices demonstrate rapid switching behavior with a rise time of 0.32 s and a fall time of 0.33 s. The time-dependent light response of a photodetector under illumination at 26 mW/cm2 is seen at a bias of 3 V. The light exhibits a rise and decay duration of 15 s, while the photocurrent gain is measured at 9µA. The photocurrent of devices exhibited a positive correlation with the incoming light intensity, suggesting that the junction has the potential to function as a photo detector.https://doi.org/10.1038/s41598-024-73360-5Ag@WO3Core–shellNanocompositePhoto detectionPulsed laser ablation |
| spellingShingle | Jehan A. Saimon Evan T. Salim Mustafa Hadi Amin Makram A. Fakhri Ahmad S. Azzahrani Ali B. M. Ali Subash C. B. Gopinath Ag@WO3 core–shell nanocomposite for wide range photo detection Scientific Reports Ag@WO3 Core–shell Nanocomposite Photo detection Pulsed laser ablation |
| title | Ag@WO3 core–shell nanocomposite for wide range photo detection |
| title_full | Ag@WO3 core–shell nanocomposite for wide range photo detection |
| title_fullStr | Ag@WO3 core–shell nanocomposite for wide range photo detection |
| title_full_unstemmed | Ag@WO3 core–shell nanocomposite for wide range photo detection |
| title_short | Ag@WO3 core–shell nanocomposite for wide range photo detection |
| title_sort | ag wo3 core shell nanocomposite for wide range photo detection |
| topic | Ag@WO3 Core–shell Nanocomposite Photo detection Pulsed laser ablation |
| url | https://doi.org/10.1038/s41598-024-73360-5 |
| work_keys_str_mv | AT jehanasaimon agwo3coreshellnanocompositeforwiderangephotodetection AT evantsalim agwo3coreshellnanocompositeforwiderangephotodetection AT mustafahadiamin agwo3coreshellnanocompositeforwiderangephotodetection AT makramafakhri agwo3coreshellnanocompositeforwiderangephotodetection AT ahmadsazzahrani agwo3coreshellnanocompositeforwiderangephotodetection AT alibmali agwo3coreshellnanocompositeforwiderangephotodetection AT subashcbgopinath agwo3coreshellnanocompositeforwiderangephotodetection |