Synthesis of high electron yield nanomaterials for radiation detector applications
The secondary electron emission (SEE) yield of coaxially AlN or GaN coated ZnO nanoneedle heterostructures has been measured. The SEE yield of the heterostructures is enhanced significantly by the inherited nanostructures from the ZnO nanoneedle templates as compared to the AlN and GaN thin films on...
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| Format: | Research Report |
| Language: | English |
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2008
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| Online Access: | http://hdl.handle.net/10356/14236 |
| _version_ | 1811680153144655872 |
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| author | Lau, Daniel Shu Ping. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Lau, Daniel Shu Ping. |
| author_sort | Lau, Daniel Shu Ping. |
| collection | NTU |
| description | The secondary electron emission (SEE) yield of coaxially AlN or GaN coated ZnO nanoneedle heterostructures has been measured. The SEE yield of the heterostructures is enhanced significantly by the inherited nanostructures from the ZnO nanoneedle templates as compared to the AlN and GaN thin films on Si substrates. The dependence of the SEE yield of the heterostructures samples on the primary electron incidence angle does not obey the conventionally power law relationship in insulators. The SEE yield enhancement is attributed to the nanostructured topography phenomenon. The findings should shed light on the development of highly efficient radiation detectors based on the SEE principle. |
| first_indexed | 2024-10-01T03:20:31Z |
| format | Research Report |
| id | ntu-10356/14236 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:20:31Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/142362023-03-04T03:20:08Z Synthesis of high electron yield nanomaterials for radiation detector applications Lau, Daniel Shu Ping. School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics The secondary electron emission (SEE) yield of coaxially AlN or GaN coated ZnO nanoneedle heterostructures has been measured. The SEE yield of the heterostructures is enhanced significantly by the inherited nanostructures from the ZnO nanoneedle templates as compared to the AlN and GaN thin films on Si substrates. The dependence of the SEE yield of the heterostructures samples on the primary electron incidence angle does not obey the conventionally power law relationship in insulators. The SEE yield enhancement is attributed to the nanostructured topography phenomenon. The findings should shed light on the development of highly efficient radiation detectors based on the SEE principle. 2008-11-06T06:51:27Z 2008-11-06T06:51:27Z 2007 2007 Research Report http://hdl.handle.net/10356/14236 en 51 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics Lau, Daniel Shu Ping. Synthesis of high electron yield nanomaterials for radiation detector applications |
| title | Synthesis of high electron yield nanomaterials for radiation detector applications |
| title_full | Synthesis of high electron yield nanomaterials for radiation detector applications |
| title_fullStr | Synthesis of high electron yield nanomaterials for radiation detector applications |
| title_full_unstemmed | Synthesis of high electron yield nanomaterials for radiation detector applications |
| title_short | Synthesis of high electron yield nanomaterials for radiation detector applications |
| title_sort | synthesis of high electron yield nanomaterials for radiation detector applications |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics |
| url | http://hdl.handle.net/10356/14236 |
| work_keys_str_mv | AT laudanielshuping synthesisofhighelectronyieldnanomaterialsforradiationdetectorapplications |