| Trap-state-assisted white light emission from a CdSe nanocrystal integrated hybrid light-emitting diode. | |
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MedLine Citation:
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PMID: 21403688 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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This Letter reports on the fabrication of hybrid white-light-emitting diodes made of semiconductor nanocrystals (NCs) integrated on InGaN/GaN LEDs. Using core type and core/shell type CdSe NCs, the white light properties are systematically engineered for white light generation with high color rendering index (CRI). Unlike CdSe/ZnS core/shell NCs, which exhibited a unique narrowband edge emission, core type CdSe NCs offered extended broad emission toward orange/red wavelengths associated with deep trap states. Consequently, the light-emitting properties of the devices showed strong dependence on the type of NCs used, and devices with CdSe NCs offered admirable characteristics, such as Commission Internationale d'Eclairage coordinates of (0.356, 0.330) and a CRI as high as 87.4. |
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Authors:
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S Chandramohan; Beo Deul Ryu; Hyun Kyu Kim; Chang-Hee Hong; Eun-Kyung Suh |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Optics letters Volume: 36 ISSN: 1539-4794 ISO Abbreviation: Opt Lett Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-03-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7708433 Medline TA: Opt Lett Country: United States |
Other Details:
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Languages: eng Pagination: 802-4 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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