한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제34권9호
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  • Pages.941-948
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  • 1997
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

솔-젤법에 의한 CuCl 미세결정이 분산된 비선형 광학유리의 제조 및 광특성

Preparation and Opticaa Properties of CuCl Nanocrystallites Dispersed Nonlinear Optical Glass by Sol-Gel Process

  • 발행 : 1997.09.01
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초록

CuCl nanocrystallites dispersed nonlinear optical silica and borosilicate glasses were fabricated by sol-gel process. CuCl powder was dissolved in TEOS(Si(OC2H5)4) and TMB((CH3O)3B), precursors of silica and borosilicate glasses, with ethanol, water and HCl, and precipitated through the heat treatment in the matrix glass. The optical properties of CuCl doped glasses were measured using the spectrophotometer at room temperature and low temperature(77K); Z1, 2 and Z3 exciton peaks from the absorption spectra, were observed at about 370 nm and 380 nm, respectively. The average radius of nanocrystallites, calculated from the blue shift of Z3 excitons, was measured according to annealing temperature and time. The precipitation temperature of CuCl nanocrystallites was decreased when boron was added to silica glass. Increase of annealing temperature and time made average radius of nanocrystallites saturated about 2 nm.

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