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SnS_2 : Co 單結晶의 光學的 特性에 관한 硏究 Co Single Crystals
李絃順 圓光大學校 基礎自然科學硏究所 1991 基礎科學硏究誌 Vol.10 No.1
The SnS_2 : Co single crystals was grown by the Chemical Vapour Transport Method using iodine as a transporting agent The structure of SnS_2 : Co single crystal was hexagonal and the measured lattice constant a= 3.638 A, C= 11.832 A. The Optical energy gap was measured to be 2.060 eV for SnS_2 : Co single crystal and 2.265 eV for SnS_2 single crystal at room temperature. The photoconductivity peak appeared at 575nm in the photoconductivity spectrum of SnS_2 : Co single crystals. I observed two PL peak at 549㎚, 881㎚ in the photoluminescence spectra of SnS_2 : Co single crystals
MoO_3 : Co 박막의 광학적 Energy Gap Co Thin Film
이현순 圓光大學校 基礎自然科學硏究所 1987 基礎科學硏究誌 Vol.6 No.2
Molybdenum oxide thin films were prepared by spray pyrolysis method. Methyl alchol solution of molybdenum acetylacetonate doped with 0.01M cobalt acetylacetonate was sprayed on glass substrates at 83℃. The films were annealed in air at 300℃, 350℃, 400℃, 450℃ and 500℃ for one hour. The optical energy gaps for these films at 295K were given as 2.56ev for MoO_3:C_o and 3.18ev for Mo_9O_26:Co.
李賢順 成均館大學校 1972 論文集 Vol.17 No.-
The waste water from two factories, a ham processing company (A) and a slaughter house (B) was treated by activated sludge which was treated by activated sludge which was made synthetically. After treatment, the water was obviously improved in color, turbidity and odor. After treatment, BOD removal was 85% and MLSS. BOD load was below 0.9 for the water from the (B) factory. ER, SS and VSS was reduced by the activated sludge.