Photo-switching behavior of CdS nanoparticles doped in a polymer film
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概要
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Light-emission intensity of CdS nanoparticles doped in a PMMA film is enhanced by a UV irradiation in air, but the emission intensity is strongly de-enhanced at a low pressure of 10−5 torr. Atmospheric gas as well as UV irradiation is essential for the enhancement, and these enhancement and de-enhancement processes are almost completely reversible. The emission of CdS nanoparticles doped in a PMMA film is also quenched by applying an external electric field, suggesting that the non-radiative decay rate from the emissive exciton state is accelerated by an external electric field
著者
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Ohtani B
Catalysis Research Center Hokkaido University
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Ohtani Bunsho
Physical Chemistry Laboratory Division Of Chemistry Graduate School Of Science Hokkaido University
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Torimoto T
Department Of Applied Chemistry Faculty Of Engineering Osaka University
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Torimoto T
Presto Jst
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