Plasmon-enhanced mid-infrared luminescence from polar and lattice-structure-mismatched CdTe/PbTe single heterojunctions
| Autor: | Shuqiang Jin, Chunfeng Cai, Bingpo Zhang, Lian Hu, Patrick J. McCann, Huizhen Wu |
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| Rok vydání: | 2012 |
| Předmět: |
Photoluminescence
Materials science Physics and Astronomy (miscellaneous) Condensed Matter::Other business.industry Surface plasmon Physics::Optics Heterojunction Cadmium telluride photovoltaics Condensed Matter::Materials Science Quasiparticle Optoelectronics Light emission business Luminescence Astrophysics::Galaxy Astrophysics Plasmon |
| Zdroj: | Applied Physics Letters. 100:182104 |
| ISSN: | 1077-3118 0003-6951 |
| Popis: | We propose by exploring CdTe/PbTe single heterojunctions (SHs) that the abnormal enhancement of mid-infrared light emission from CdTe/PbTe heterostructures is due to coupling with surface plasmons. It is discovered that the observed intense mid-infrared luminescence in the SHs comes from the inherent polar interface character and coupling of surface plasmons localized at the metallic CdTe/PbTe interface to light emitted from the narrow gap PbTe. The finding offers an approach to manipulate mid-infrared light and to fabricate improved mid-infrared optoelectronic devices. |
| Databáze: | OpenAIRE |
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