High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy
Interdigitated photodetectors (IPDs) based on the two-dimensional electron gas (2DEG) at the AlGaN/GaN interface have gained prominence as high sensitivity ultraviolet (UV) PDs due to their excellent optoelectronic performance. However, most 2DEG-IPDs have been built on rigid substrates, thus limiti...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/156886 |
| _version_ | 1811696710711246848 |
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| author | Zhang, Yi-Yu Zheng, Yi-Xiong Lai, Jun-Yu Seo, Jung-Hun Lee, Kwang Hong Tan, Chuan Seng An, Shu Shin, Sang-Ho Son, Bongkwon Kim, Munho |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhang, Yi-Yu Zheng, Yi-Xiong Lai, Jun-Yu Seo, Jung-Hun Lee, Kwang Hong Tan, Chuan Seng An, Shu Shin, Sang-Ho Son, Bongkwon Kim, Munho |
| author_sort | Zhang, Yi-Yu |
| collection | NTU |
| description | Interdigitated photodetectors (IPDs) based on the two-dimensional electron gas (2DEG) at the AlGaN/GaN interface have gained prominence as high sensitivity ultraviolet (UV) PDs due to their excellent optoelectronic performance. However, most 2DEG-IPDs have been built on rigid substrates, thus limiting the use of 2DEG-IPDs in flexible and wearable applications. In this paper, we have demonstrated high performance flexible AlGaN/GaN 2DEG-IPDs using AlGaN/GaN 2DEG heterostructure membranes created from 8 in. AlGaN/GaN on insulator (AlGaN/GaNOI) substrates. The interdigitated AlGaN/GaN heterostructure has been engineered to reduce dark current by disconnecting the conductive channel at the heterostructure interface. Photocurrent has been also boosted by the escaped carriers from the 2DEG layer. Therefore, the utilization of a 2DEG layer in transferrable AlGaN/GaN heterostructure membranes offers great promises for high performance flexible 2DEG-IPDs for advanced UV detection systems that are critically important in myriad biomedical and environmental applications. |
| first_indexed | 2024-10-01T07:43:42Z |
| format | Journal Article |
| id | ntu-10356/156886 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:43:42Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1568862022-04-26T07:27:06Z High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy Zhang, Yi-Yu Zheng, Yi-Xiong Lai, Jun-Yu Seo, Jung-Hun Lee, Kwang Hong Tan, Chuan Seng An, Shu Shin, Sang-Ho Son, Bongkwon Kim, Munho School of Electrical and Electronic Engineering Singapore-MIT Alliance for Research and Technology (SMART) Engineering::Electrical and electronic engineering Ultraviolet Flexible Photodetectors Interdigitated photodetectors (IPDs) based on the two-dimensional electron gas (2DEG) at the AlGaN/GaN interface have gained prominence as high sensitivity ultraviolet (UV) PDs due to their excellent optoelectronic performance. However, most 2DEG-IPDs have been built on rigid substrates, thus limiting the use of 2DEG-IPDs in flexible and wearable applications. In this paper, we have demonstrated high performance flexible AlGaN/GaN 2DEG-IPDs using AlGaN/GaN 2DEG heterostructure membranes created from 8 in. AlGaN/GaN on insulator (AlGaN/GaNOI) substrates. The interdigitated AlGaN/GaN heterostructure has been engineered to reduce dark current by disconnecting the conductive channel at the heterostructure interface. Photocurrent has been also boosted by the escaped carriers from the 2DEG layer. Therefore, the utilization of a 2DEG layer in transferrable AlGaN/GaN heterostructure membranes offers great promises for high performance flexible 2DEG-IPDs for advanced UV detection systems that are critically important in myriad biomedical and environmental applications. Agency for Science, Technology and Research (A*STAR) Nanyang Technological University National Research Foundation (NRF) Submitted/Accepted version The work was supported by A*STAR Advanced Manufacturing and Engineering (AME) Young Individual Research Grant (YIRG) under project A2084c0066, Nanyang Technological University (NTU) start-up grant (M4082289.040), and partly by the National Research Foundation, Singapore, under its Competitive Research Program (CRP award NRF-CRP19- 2017-01). Prof. Seo acknowledges the National Science Foundation, USA (grant no. ECCS-1809077). 2022-04-26T07:27:06Z 2022-04-26T07:27:06Z 2021 Journal Article Zhang, Y., Zheng, Y., Lai, J., Seo, J., Lee, K. H., Tan, C. S., An, S., Shin, S., Son, B. & Kim, M. (2021). High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy. ACS Nano, 15(5), 8386-8396. https://dx.doi.org/10.1021/acsnano.0c10374 1936-0851 https://hdl.handle.net/10356/156886 10.1021/acsnano.0c10374 33908251 2-s2.0-85106505035 5 15 8386 8396 en A2084c0066 M4082289.040 NRF-CRP19- 2017-01 ACS Nano This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.0c10374. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Ultraviolet Flexible Photodetectors Zhang, Yi-Yu Zheng, Yi-Xiong Lai, Jun-Yu Seo, Jung-Hun Lee, Kwang Hong Tan, Chuan Seng An, Shu Shin, Sang-Ho Son, Bongkwon Kim, Munho High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title | High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title_full | High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title_fullStr | High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title_full_unstemmed | High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title_short | High performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| title_sort | high performance flexible visible blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategy |
| topic | Engineering::Electrical and electronic engineering Ultraviolet Flexible Photodetectors |
| url | https://hdl.handle.net/10356/156886 |
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