Measurement of radiative lifetime in CdSe/CdS core/shell structured quantum dots

• 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.

Ämnesord

NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)

Nyckelord

CdSe/CdS

Continuous waves

Core size

Core/shell

Electron hole pairs

Gain materials

High potential

Quantum Dot

Radiative lifetime

Size separation

Semiconductor quantum dots

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