Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix
Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wa...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
|
| Online Access: | https://hdl.handle.net/10356/97461 http://hdl.handle.net/10220/10665 |
| _version_ | 1826110927093628928 |
|---|---|
| author | Liao, Yile Xing, Guichuan Mishra, Nimai Sum, Tze Chien Chan, Yinthai |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liao, Yile Xing, Guichuan Mishra, Nimai Sum, Tze Chien Chan, Yinthai |
| author_sort | Liao, Yile |
| collection | NTU |
| description | Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wavelengths corresponding to either the CdSe core or CdS arms, while higher pump intensities resulted in ASE from a higher CdSe excited state. These results collectively indicate that such heterostructured tetrapods can facilitate tunable, multiple-wavelength lasing across a wide spectral range from a single nanostructure. |
| first_indexed | 2024-10-01T02:42:31Z |
| format | Journal Article |
| id | ntu-10356/97461 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:31Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/974612020-03-07T12:34:44Z Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix Liao, Yile Xing, Guichuan Mishra, Nimai Sum, Tze Chien Chan, Yinthai School of Physical and Mathematical Sciences Wet-chemically synthesized CdSe seeded CdS nanotetrapods incorporated into silica matrices have been explored as high performance nanocrystal-based optical amplifiers. Varying the physical dimensions of the tetrapods allowed for room temperature biexcitonic amplified spontaneous emission (ASE) at wavelengths corresponding to either the CdSe core or CdS arms, while higher pump intensities resulted in ASE from a higher CdSe excited state. These results collectively indicate that such heterostructured tetrapods can facilitate tunable, multiple-wavelength lasing across a wide spectral range from a single nanostructure. 2013-06-25T08:05:54Z 2019-12-06T19:42:59Z 2013-06-25T08:05:54Z 2019-12-06T19:42:59Z 2012 2012 Journal Article Liao, Y., Xing, G., Mishra, N., Sum, T. C., & Chan, Y. (2012). Low Threshold, Amplified Spontaneous Emission from Core-Seeded Semiconductor Nanotetrapods Incorporated into a Sol-Gel Matrix. Advanced Materials, 24(23), OP159-OP164. 0935-9648 https://hdl.handle.net/10356/97461 http://hdl.handle.net/10220/10665 10.1002/adma.201200121 en Advanced materials © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | Liao, Yile Xing, Guichuan Mishra, Nimai Sum, Tze Chien Chan, Yinthai Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title | Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title_full | Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title_fullStr | Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title_full_unstemmed | Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title_short | Low threshold, amplified spontaneous emission from core-seeded semiconductor nanotetrapods incorporated into a sol-gel matrix |
| title_sort | low threshold amplified spontaneous emission from core seeded semiconductor nanotetrapods incorporated into a sol gel matrix |
| url | https://hdl.handle.net/10356/97461 http://hdl.handle.net/10220/10665 |
| work_keys_str_mv | AT liaoyile lowthresholdamplifiedspontaneousemissionfromcoreseededsemiconductornanotetrapodsincorporatedintoasolgelmatrix AT xingguichuan lowthresholdamplifiedspontaneousemissionfromcoreseededsemiconductornanotetrapodsincorporatedintoasolgelmatrix AT mishranimai lowthresholdamplifiedspontaneousemissionfromcoreseededsemiconductornanotetrapodsincorporatedintoasolgelmatrix AT sumtzechien lowthresholdamplifiedspontaneousemissionfromcoreseededsemiconductornanotetrapodsincorporatedintoasolgelmatrix AT chanyinthai lowthresholdamplifiedspontaneousemissionfromcoreseededsemiconductornanotetrapodsincorporatedintoasolgelmatrix |