J
Jong Heo
Researcher at Pohang University of Science and Technology
Publications - 258
Citations - 5806
Jong Heo is an academic researcher from Pohang University of Science and Technology. The author has contributed to research in topics: Quantum dot & Photoluminescence. The author has an hindex of 37, co-authored 255 publications receiving 5289 citations. Previous affiliations of Jong Heo include Samsung & Adama University.
Papers
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Emission properties of the transition in Er3+- and Er3+/Tm3+-doped Ge–Ga–As–S glasses
TL;DR: In this paper, a host material for the Er 3+ : 2.7 μm fiber laser was investigated and the cross-relaxation rate for the 4 I 11/2 and 4 I 13/2 levels was shown to be approximately 11 times faster than that for the four I 13 /2 level.
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Control of chromaticity by phosphor in glasses with low temperature sintered silicate glasses for LED applications
TL;DR: By simply varying the mixing ratio of glass to phosphors as well as the ratio of yellow to red phosphors, the facile control of the CIE chromaticity coordinates and correlated color temperature of the LED following the Planckian locus has been achieved.
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1.6 μm emission from Pr3+: (3F3,3F4)→3H4 transition in Pr3+- and Pr3+/Er3+-doped selenide glasses
TL;DR: In this article, 16 μm emission originated from Pr3+: 4I13/2→Pr3+/Er3+-doped selenide glasses were investigated under an optical pump of a conventional 1480 nm laser diode.
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Conversion to glass-ceramics from glasses made by MSW incinerator fly ash for recycling
Youngjun Park,Jong Heo +1 more
TL;DR: The glass-ceramics showed good mechanical properties with a hardness of 6,730 MPa, fracture toughness of 1.86 Mpa m1/2 and bending strength of 127 MPa as discussed by the authors.
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Spectroscopic Properties of and Energy Transfer in PbO–Bi2O3–Ga2O3 Glass Doped with Er2O3
TL;DR: In this article, the energy transfer mechanism associated with the 4 I 13/2 and 4 I 11/2 levels was migration induced, whereas the energy migration was direct cross relaxation.