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Measurement of Radiative Lifetime in CdSe/CdS Core/shell Structured Quantum Dots

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Abstract

Radiative lifetime of chemically synthesized colloidal CdSe/CdS core/shell quantum dots is measured. Influence of the core size on the electron-hole pair separation is analyzed. A long radiative lifetime and the existence of electron-hole pair separation suggest high potential of these dots as gain material to achieve lasing under continuous-wave excitation.

© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC

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