Local Avalanche Photodetectors Driven by Lightning-rod Effect and Surface Plasmon Excitations
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866917129661448192 |
|---|---|
| author | Fu, Zhao Yuan, Meng Cai, Jiafa Hong, Rongdun Chen, Xiaping Lin, Dingqu Wu, Shaoxiong Zhang, Yuning Wu, Zhengyun Shen, Zhanwei Wang, Zhijie Wang, Jicheng Zhang, Mingkun Yang, Zhilin Fu, Deyi Zhang, Feng Zhang, Rong |
| author_facet | Fu, Zhao Yuan, Meng Cai, Jiafa Hong, Rongdun Chen, Xiaping Lin, Dingqu Wu, Shaoxiong Zhang, Yuning Wu, Zhengyun Shen, Zhanwei Wang, Zhijie Wang, Jicheng Zhang, Mingkun Yang, Zhilin Fu, Deyi Zhang, Feng Zhang, Rong |
| contents | Sensitive avalanche photodetectors (APDs) that operate within the ultraviolet spectrum are critically required for applications in detecting fire and deep-space exploration. However, the development of such devices faces significant challenges, including high avalanche breakdown voltage, the necessity for complex quenching circuits, and thermal runaway associated with Geiger-mode avalanche operation. To mitigate these issues, we report on a 4H-SiC APD design utilizing micro-holes (MHs) structures and Al nano-triangles (NTs) to enhance surface electric field driven by strong localized surface plasmon excitations and lightning-rod effect. The device demonstrates a record low avalanche breakdown voltage of approximately 14.5 V, a high detectivity of 7E13 Jones, a nanosecond-level response time, and repeated stable detections without the requirement of a quenching circuit. Collectively, when compared with the conventional wide-bandgap-based APDs, this device achieves a reduction in avalanche breakdown voltage by an order of magnitude and exhibits a substantial increase in detectivity. Consequently, the proposed APD configuration presents a promising candidate for ultraviolet detection and integrated optoelectronic circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01691 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Local Avalanche Photodetectors Driven by Lightning-rod Effect and Surface Plasmon Excitations Fu, Zhao Yuan, Meng Cai, Jiafa Hong, Rongdun Chen, Xiaping Lin, Dingqu Wu, Shaoxiong Zhang, Yuning Wu, Zhengyun Shen, Zhanwei Wang, Zhijie Wang, Jicheng Zhang, Mingkun Yang, Zhilin Fu, Deyi Zhang, Feng Zhang, Rong Optics Instrumentation and Detectors Sensitive avalanche photodetectors (APDs) that operate within the ultraviolet spectrum are critically required for applications in detecting fire and deep-space exploration. However, the development of such devices faces significant challenges, including high avalanche breakdown voltage, the necessity for complex quenching circuits, and thermal runaway associated with Geiger-mode avalanche operation. To mitigate these issues, we report on a 4H-SiC APD design utilizing micro-holes (MHs) structures and Al nano-triangles (NTs) to enhance surface electric field driven by strong localized surface plasmon excitations and lightning-rod effect. The device demonstrates a record low avalanche breakdown voltage of approximately 14.5 V, a high detectivity of 7E13 Jones, a nanosecond-level response time, and repeated stable detections without the requirement of a quenching circuit. Collectively, when compared with the conventional wide-bandgap-based APDs, this device achieves a reduction in avalanche breakdown voltage by an order of magnitude and exhibits a substantial increase in detectivity. Consequently, the proposed APD configuration presents a promising candidate for ultraviolet detection and integrated optoelectronic circuits. |
| title | Local Avalanche Photodetectors Driven by Lightning-rod Effect and Surface Plasmon Excitations |
| topic | Optics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2412.01691 |