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Issue Information
Publication year - 2021
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.15791
Subject(s) - ntsc , gamut , light emitting diode , materials science , optics , quantum dot , optoelectronics , red color , rgb color model , physics , telecommunications , artificial intelligence , computer science , transmission (telecommunications)
Cover Photograph : The bottom image shows (a) visible emission spectra and (b) the color coordination and color reproduction range of white LEDs which are composed with a pattern structured quantum dot embedded glass (pQDEG) as a color converter. The pQDEG was fabricated by binding two QDEGs having different sizes of CdSe/CdS quantum dots within a silicate glass matrix. A QDEG with yellowish color produced green emission while another QDEG with red color resulted in red emission under 450 nm LED excitation, so that they can compose a white LED with separate green and red emission bands. The actual photos of the mounted LEDs along with their estimated color gamut value to the NTSC (national television standard committee) defined area, were also presented at the right bottom side of the figure. The top images also show (a) visible emission spectra and (b) the color coordination and color reproduction range of white LEDs depending on the thickness of the mounted pQDEG which has a sandwich structure with an areal ratio of green QDEG to red QDEG as 50:50 (G50). (c) and (d) exhibit visible spectra and the color coordination along with the color reproduction range of white LEDs with a sandwich structured pQDEG having an areal ratio of green QDEG to red QDEG as 75:25 (G75). The color coordination of white LEDs was linearly adjusted by the thickness of pQDEGs while the color gamut was saturated up to 76% of the NTSC‐defined area. [DOI: 10.1111/ijag.15888 ].