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dc.contributor.authorZhang, Yi-Yuen_US
dc.contributor.authorZheng, Yi-Xiongen_US
dc.contributor.authorLai, Jun-Yuen_US
dc.contributor.authorSeo, Jung-Hunen_US
dc.contributor.authorLee, Kwang Hongen_US
dc.contributor.authorTan, Chuan Sengen_US
dc.contributor.authorAn, Shuen_US
dc.contributor.authorShin, Sang-Hoen_US
dc.contributor.authorSon, Bongkwonen_US
dc.contributor.authorKim, Munhoen_US
dc.identifier.citationZhang, 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.
dc.description.abstractInterdigitated 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.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relationNRF-CRP19- 2017-01en_US
dc.relation.ispartofACS Nanoen_US
dc.rightsThis 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
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleHigh performance flexible visible-blind ultraviolet photodetectors with two dimensional electron gas based on unconventional release strategyen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.organizationSingapore-MIT Alliance for Research and Technology (SMART)en_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsFlexible Photodetectorsen_US
dc.description.acknowledgementThe 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).en_US
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