Liquid Type Nontoxic Photoluminescent Nanomaterials for High Color Quality White-Light-Emitting Diode

High-brightness white-light-emitting diodes (w-LEDs) with excellent color quality is demonstrated by using nontoxic nanomaterials. Previously, we have reported the high color quality w-LEDs with heavy-metal phosphor and quantum dots (QDs), which may cause environmental hazards. In the present work,...

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Bibliographic Details
Published in:Nanoscale research letters 2018-12, Vol.13 (1), p.411-411, Article 411
Main Authors: Lin, Chih-Hao, Pai, Yung-Min, Lee, Chun-Fu, Verma, Akta, Lin, Huang-Yu, Tu, Chang-Ching, Chen, Xin-Yin, Teng, Hsi-Sheng, Chen, Teng-Ming, Chen, Cheng-Huan, Sher, Chin-Wei, Lee, Po-Tsung, Lin, Chien-Chung, Sharma, S. K., Kuo, Hao-Chung
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Color
Environmental hazards
Graphene
Hazards
Light emitting diodes
Light-emitting diode
Luminous efficacy
Materials Science
Medical imaging
Molecular Medicine
Nano Express
Nanochemistry
Nanomaterials
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Non-toxicity
Organic light emitting diodes
Photoluminescence
Porous silicon
Quantum dots
Silicon
Surface temperature
Toxicity
Tungsten
White light
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Summary:High-brightness white-light-emitting diodes (w-LEDs) with excellent color quality is demonstrated by using nontoxic nanomaterials. Previously, we have reported the high color quality w-LEDs with heavy-metal phosphor and quantum dots (QDs), which may cause environmental hazards. In the present work, liquid-type white LEDs composed of nontoxic materials, named as graphene and porous silicon quantum dots are fabricated with a high color rendering index (CRI) value gain up to 95. The liquid-typed device structure possesses minimized surface temperature and 25% higher value of luminous efficiency as compare to dispensing-typed structure. Further, the as-prepared device is environment friendly and attributed to low toxicity. The low toxicity and high R9 (87) component values were conjectured to produce new or improve current methods toward bioimaging application.
ISSN:1931-7573
1556-276X
DOI:10.1186/s11671-018-2835-4