A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores
Date
2009-12-24Source Title
Optics Express
Print ISSN
1094-4087
Publisher
Optical Society of America
Volume
18
Issue
1
Pages
340 - 347
Language
English
Type
ArticleItem Usage Stats
186
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views
136
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Abstract
We report a photometric study of ultra-efficient light emitting diodes (LEDs) that exhibit superior color rendering index (CRI) and luminous efficacy of optical radiation (LER) using semiconductor quantum dot nanocrystal (NC) luminophores. Over 200 million systematically varied NC-LED designs have been simulated to understand feasible performance in terms of CRI vs. LER. We evaluated the effects of design parameters including peak emission wavelength, full-width-at-half-maximum, and relative amplitudes of each NC color component on LED performance. Warm-white LEDs with CRI >90 and LER >380 lm/W at a correlated color temperature of 3000 K are shown to be achieved using nanocrystal luminophores. (C) 2009 Optical Society of America
Keywords
ColorNanocrystals
Photometry
Semiconductor Diodes
Semiconductor Quantum Dots Color Component
Color Rendering Index
Correlated Color Temperature
Design Parameters
High Color Rendering Index
High Luminous Efficacy
Luminophores
Luminous Efficacy
Optical Radiations
Peak Emission Wavelength
Quantum Dot
Relative Amplitude
White Led
Light Emitting Diodes
Nanomaterial
Quantum Dot
Article
Chemistry
Color
Colorimetry
Computer Aided Design
Equipment
Equipment Design
Illumination
Instrumentation
Luminescence
Methodology
Nanotechnology
Optical Instrumentation
Photometry
Refractometry
Reproducibility
Semiconductor
Sensitivity And Specificity
Color
Colorimetry
Computer-aided Design
Equipment Design
Equipment Failure Analysis
Lighting
Luminescent Measurements
Nanostructures
Nanotechnology
Optical Devices
Photometry
Quantum Dots
Refractometry
Reproducibility Of Results
Semiconductors
Sensitivity And Specificity
Permalink
http://hdl.handle.net/11693/11874Published Version (Please cite this version)
http://dx.doi.org/10.1364/OE.18.000340Collections
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