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Conference Paper: Polarized Photoluminescence and Carrier Localization of GaInP2 Alloy with Partial CuPt-type Atomic Ordering
Title | Polarized Photoluminescence and Carrier Localization of GaInP2 Alloy with Partial CuPt-type Atomic Ordering |
---|---|
Authors | |
Keywords | GaInP2 alloy polarized photoluminescence spontaneous atomic ordering carrier localization |
Issue Date | 2014 |
Publisher | The Physical Society of Hong Kong (PSHK). |
Citation | The 17th Annual Conference of the Physical Society of Hong Kong (PSHK), Hong Kong, China, 7 June 2014. In the Abstracts of the 17th Annual Conference of the Physical Society of Hong Kong (PSHK), 2014, p. 23 How to Cite? |
Abstract | GaInP2 is a technologically important energy material for high-efficiency solar cells and redcolor
LDs. Therefore, its optical properties and electronic strictures are of particularly
interest. In this talk, we report polarized photoluminescence (PL) spectra of GaInP2 alloy
with spontaneous CuPt-type atomic ordering. By examining variable-temperature polarized
PL spectra in detail, it is found that the luminescence from GaInP2 is composed of two
components: polarized and non-polarized parts. These two components exhibit dissimilar
temperature dependence. The former is ascribed to the emission of carriers localized in the
ordered domains while the latter to the emission of carriers localized in the disordered
regions. Thermal activation and transfer of localized carriers from the ordered domains to the
disordered regions was revealed and characterized with a thermal activation energy of 10
meV. |
Description | Theme 2: Energy Materials and Devices Invited talk |
Persistent Identifier | http://hdl.handle.net/10722/204590 |
DC Field | Value | Language |
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dc.contributor.author | Ning, JQ | en_US |
dc.contributor.author | Xu, S | - |
dc.contributor.author | Deng, Z | - |
dc.contributor.author | Su, ZC | - |
dc.date.accessioned | 2014-09-20T00:13:46Z | - |
dc.date.available | 2014-09-20T00:13:46Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.citation | The 17th Annual Conference of the Physical Society of Hong Kong (PSHK), Hong Kong, China, 7 June 2014. In the Abstracts of the 17th Annual Conference of the Physical Society of Hong Kong (PSHK), 2014, p. 23 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/204590 | - |
dc.description | Theme 2: Energy Materials and Devices | - |
dc.description | Invited talk | - |
dc.description.abstract | GaInP2 is a technologically important energy material for high-efficiency solar cells and redcolor LDs. Therefore, its optical properties and electronic strictures are of particularly interest. In this talk, we report polarized photoluminescence (PL) spectra of GaInP2 alloy with spontaneous CuPt-type atomic ordering. By examining variable-temperature polarized PL spectra in detail, it is found that the luminescence from GaInP2 is composed of two components: polarized and non-polarized parts. These two components exhibit dissimilar temperature dependence. The former is ascribed to the emission of carriers localized in the ordered domains while the latter to the emission of carriers localized in the disordered regions. Thermal activation and transfer of localized carriers from the ordered domains to the disordered regions was revealed and characterized with a thermal activation energy of 10 meV. | en_US |
dc.language | eng | en_US |
dc.publisher | The Physical Society of Hong Kong (PSHK). | - |
dc.relation.ispartof | Annual Conference of the Physical Society of Hong Kong (PSHK) | en_US |
dc.subject | GaInP2 alloy | - |
dc.subject | polarized photoluminescence | - |
dc.subject | spontaneous atomic ordering | - |
dc.subject | carrier localization | - |
dc.title | Polarized Photoluminescence and Carrier Localization of GaInP2 Alloy with Partial CuPt-type Atomic Ordering | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Xu, S: sjxu@hku.hk | en_US |
dc.identifier.authority | Xu, S=rp00821 | en_US |
dc.identifier.hkuros | 238095 | en_US |
dc.identifier.spage | 23 | - |
dc.identifier.epage | 23 | - |
dc.publisher.place | Hong Kong | - |