Novel P-type wide bandgap manganese oxide quantum dots for self-powered solar-blind deep UV devices

Iman S. Roqan; Somak Mitra; Norah Alwadai; Hadeel Alamoudi; Zohoor Alharbi; Fatimah Alreshidi; Bin Xin; Yusin Pak

doi:10.1117/12.2664673

16 March 2023 Novel P-type wide bandgap manganese oxide quantum dots for self-powered solar-blind deep UV devices

Iman S. Roqan, Somak Mitra, Norah Alwadai, Hadeel Alamoudi, Zohoor Alharbi, Fatimah Alreshidi, Bin Xin, Yusin Pak

Proceedings Volume 12422, Oxide-based Materials and Devices XIV; 1242209 (2023) https://doi.org/10.1117/12.2664673
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Obtaining p-type wide bandgap semiconductors operating in the deep UV (DUV) range (λ < 300 nm) is still challenging. However, as a part of this work, we developed novel p-type solution-processed wide bandgap semiconductors based on solution-processed manganese oxide quantum dots (MnO-QDs) with the gap energy exceeding 4 eV synthesized by ultrafast laser ablation, which can be adopted for flexible and solar-blind DUV optoelectronics. We conducted advanced optical, structural, and electrical characterizations, revealing unique properties of this material. Our findings show excellent band alignment between these QDs and other wide bandgap semiconductors, such as GaN and Ga2O3. The high performance of a solar-blind self-powered DUV photodetector based on p−n junction that comprises n-type wide bandgap semiconductors and p-type MnO-QDs is demonstrated.

Conference Presentation

Citation Download Citation

Iman S. Roqan, Somak Mitra, Norah Alwadai, Hadeel Alamoudi, Zohoor Alharbi, Fatimah Alreshidi, Bin Xin, and Yusin Pak "Novel P-type wide bandgap manganese oxide quantum dots for self-powered solar-blind deep UV devices", Proc. SPIE 12422, Oxide-based Materials and Devices XIV, 1242209 (16 March 2023); https://doi.org/10.1117/12.2664673

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