Preparation of Highly Luminescent Nanocrystals and Their Application to Light‐Emitting Diodes | Zendy

Lim J. | Zendy; Jun S. | Zendy; Jang E. | Zendy; Baik H. | Zendy; Kim H. | Zendy; Cho J. | Zendy

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Preparation of Highly Luminescent Nanocrystals and Their Application to Light‐Emitting Diodes

Author(s) -

Lim J.,

Jun S.,

Jang E.,

Baik H.,

Kim H.,

Cho J.

Publication year - 2007

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200602642

Subject(s) - nanocrystal , phosphor , materials science , diode , optoelectronics , luminescence , light emitting diode , wavelength , quantum efficiency , core (optical fiber) , semiconductor , excitation wavelength , nanotechnology , composite material

Core/multishell‐structured semiconductor nanocrystals (NCs) are prepared in multigram amounts through a one‐pot process without a core‐separation step (see figure and cover). The NCs show a maximum quantum efficiency of 85 % at a controlled wavelength and strong photostability against UV‐light bleaching. The NCs are applied as phosphors on UV‐light‐emitting diodes (390 nm source), which emit light at 620 nm with a 48 % power conversion efficiency.

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