Rocksalt MgS solar blind ultra-violet detectors
Studies using in-situ Auger electron spectroscopy and reflection high energy electron diffraction, and ex-situ high resolution X-ray diffraction and electron backscatter diffraction reveal that a MgS thin film grown directly on a GaAs (100) substrate by molecular beam epitaxy adopts its most stable...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2012-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.3690124 |
| _version_ | 1828816277817262080 |
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| author | Ying-Hoi Lai Wai-Yip Cheung Shu-Kin Lok George K. L. Wong Sut-Kam Ho Kam-Weng Tam Iam-Keong Sou |
| author_facet | Ying-Hoi Lai Wai-Yip Cheung Shu-Kin Lok George K. L. Wong Sut-Kam Ho Kam-Weng Tam Iam-Keong Sou |
| author_sort | Ying-Hoi Lai |
| collection | DOAJ |
| description | Studies using in-situ Auger electron spectroscopy and reflection high energy electron diffraction, and ex-situ high resolution X-ray diffraction and electron backscatter diffraction reveal that a MgS thin film grown directly on a GaAs (100) substrate by molecular beam epitaxy adopts its most stable phase, the rocksalt structure, with a lattice constant of 5.20 Å. A Au/MgS/n+-GaAs (100) Schottky-barrier photodiode was fabricated and its room temperature photoresponse was measured to have a sharp fall-off edge at 235 nm with rejection of more than three orders at 400 nm and higher than five orders at 500 nm, promising for various solar-blind UV detection applications. |
| first_indexed | 2024-12-12T11:01:00Z |
| format | Article |
| id | doaj.art-bcb68db1b3b840ea84034bb705cd1e22 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-12T11:01:00Z |
| publishDate | 2012-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-bcb68db1b3b840ea84034bb705cd1e222022-12-22T00:26:33ZengAIP Publishing LLCAIP Advances2158-32262012-03-0121012149012149-610.1063/1.3690124050201ADVRocksalt MgS solar blind ultra-violet detectorsYing-Hoi Lai0Wai-Yip Cheung1Shu-Kin Lok2George K. L. Wong3Sut-Kam Ho4Kam-Weng Tam5Iam-Keong Sou6Nano Science and Nano Technology Program, The Hong Kong University of Science and Technology, HKSAR, People's Republic of ChinaDepartment of Physics and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, HKSAR, People's Republic of ChinaDepartment of Physics and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, HKSAR, People's Republic of ChinaDepartment of Physics and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, HKSAR, People's Republic of ChinaFaculty of Science and Technology, University of Macau, Macau, People's Republic of ChinaDepartment of Electrical and Computer Engineering, University of Macau, Macau, People's Republic of ChinaDepartment of Physics and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, HKSAR, People's Republic of ChinaStudies using in-situ Auger electron spectroscopy and reflection high energy electron diffraction, and ex-situ high resolution X-ray diffraction and electron backscatter diffraction reveal that a MgS thin film grown directly on a GaAs (100) substrate by molecular beam epitaxy adopts its most stable phase, the rocksalt structure, with a lattice constant of 5.20 Å. A Au/MgS/n+-GaAs (100) Schottky-barrier photodiode was fabricated and its room temperature photoresponse was measured to have a sharp fall-off edge at 235 nm with rejection of more than three orders at 400 nm and higher than five orders at 500 nm, promising for various solar-blind UV detection applications.http://dx.doi.org/10.1063/1.3690124 |
| spellingShingle | Ying-Hoi Lai Wai-Yip Cheung Shu-Kin Lok George K. L. Wong Sut-Kam Ho Kam-Weng Tam Iam-Keong Sou Rocksalt MgS solar blind ultra-violet detectors AIP Advances |
| title | Rocksalt MgS solar blind ultra-violet detectors |
| title_full | Rocksalt MgS solar blind ultra-violet detectors |
| title_fullStr | Rocksalt MgS solar blind ultra-violet detectors |
| title_full_unstemmed | Rocksalt MgS solar blind ultra-violet detectors |
| title_short | Rocksalt MgS solar blind ultra-violet detectors |
| title_sort | rocksalt mgs solar blind ultra violet detectors |
| url | http://dx.doi.org/10.1063/1.3690124 |
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