| Fabrication and electro-optic properties of a MWCNT driven novel electroluminescent lamp. | |
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MedLine Citation:
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PMID: 23059894 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We present a novel, cost-effective and facile technique, wherein multi-walled carbon nanotubes (CNTs) were used to transform a photoluminescent material to exhibit stable and efficient electroluminescence (EL) at low voltages. As a case study, a commercially available ZnS:Cu phosphor (P-22G having a quantum yield of 65 ± 5%) was combined with a very low (∼0.01 wt%) concentration of CNTs dispersed in ethanol and its alternating current driven electroluminescence (AC-EL) is demonstrated. The role of CNTs has been understood as a local electric field enhancer and facilitator in the hot carrier injection inside the ZnS crystal to produce EL in the hybrid material. The mechanism of EL is discussed using an internal field emission model, intra-CNT impact excitation and the recombination of electrons and holes through the impurity states. |
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Authors:
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D Haranath; Sonal Sahai; Savvi Mishra; M Husain; Virendra Shanker |
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Publication Detail:
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Type: Journal Article Date: 2012-10-11 |
Journal Detail:
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Title: Nanotechnology Volume: 23 ISSN: 1361-6528 ISO Abbreviation: Nanotechnology Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-10-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101241272 Medline TA: Nanotechnology Country: England |
Other Details:
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Languages: eng Pagination: 435704 Citation Subset: IM |
Affiliation:
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CSIR-National Physical Laboratory, Dr K S Krishnan Road, New Delhi-110 012, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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