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Bimli S, Manjunath V, Jung SH, Kim DS, Choudhary RJ, Jangir R, Srivastava H, Rana S, Cho HK, Devan RS, Deshpande NG. Low-Intensity Light Detection with a High Detectivity Using 2D-Sb 2Se 3 Nanoflakes on 1D-ZnO Nanorods as Heterojunction Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:31261-31273. [PMID: 38850236 DOI: 10.1021/acsami.4c03001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2024]
Abstract
Multifunctional photodetectors (PDs) with broadband responsivity (R) and specific detectivity (D*) at low light intensities are gaining significant attention. Thus, we report a bilayer PD creatively fabricated by layering two-dimensional (2D) Sb2Se3 nanoflakes (NFs) on one-dimensional (1D) ZnO nanorods (NRs) using simple thermal transfer and hydrothermal processes. The unique coupling of these two layers of materials in a nanostructured form, such as 2D-Sb2Se3 NFs/1D-ZnO NRs, provides an effective large surface area, robust charge transport paths, and light-trapping effects that enhance light harvesting. Furthermore, the combination of both layers can effectively facilitate photoactivity owing to proper band alignment. The as-fabricated device demonstrated superior overall performance in terms of a suitable bandwidth, good R, and high D* under low-intensity light, unlike the single-layered 1D-ZnO NRs and 2D-Sb2Se3 NF structures alone, which had poor detectivity or response in the measured spectral range. The PD demonstrated a spectral photoresponse ranging from ultraviolet (UV) to visible (220-628 nm) light at intensities as low as 0.15 mW·cm-2. The PD yielded a D* value of 3.15 × 1013 Jones (220 nm), which reached up to 5.95 × 1013 Jones in the visible light region (628 nm) at a 3 V bias. This study demonstrated that the 2D-Sb2Se3 NFs/1D-ZnO NRs PD has excellent potential for low-intensity light detection with a broad bandwidth, which is useful for signal communications and optoelectronic systems.
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Affiliation(s)
- Santosh Bimli
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Khandwa Road, 453552 Indore, India
| | - Vishesh Manjunath
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Khandwa Road, 453552 Indore, India
| | - Sung Hyeon Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon-si, Gyeonggi-do, Republic of Korea
- Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon, Gyeonggi-do, Republic of Korea
| | - Dong Su Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon-si, Gyeonggi-do, Republic of Korea
- Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon, Gyeonggi-do, Republic of Korea
| | | | - Ravindra Jangir
- Accelerator Physics and Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology, 452013 Indore, India
| | - Himanshu Srivastava
- Accelerator Physics and Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology, 452013 Indore, India
| | - Shailesh Rana
- Department of Applied Chemistry and Institute of Molecular Science, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan
| | - Hyung Koun Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon-si, Gyeonggi-do, Republic of Korea
- Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon, Gyeonggi-do, Republic of Korea
| | - Rupesh S Devan
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Khandwa Road, 453552 Indore, India
- Center for Electric Vehicles and Intelligent Transport System, Indian Institute of Technology Indore, Simrol, Khandwa Road, 453552 Indore, India
| | - Nishad G Deshpande
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, 16419 Suwon-si, Gyeonggi-do, Republic of Korea
- Indian Institute of Information Technology, Surat, Kholvad Campus, Kamrej, 394190 Surat, Gujarat, India
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