[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.1080/15980316.2011.683537

InP/ZnSe/ZnS: A Novel Multishell System for InP Quantum Dots for Improved Luminescence Efficiency and Its application in a Light-Emitting Device

Ippen, Christian (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research)
Greco, Tonino (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research)
Wedel, Armin (Functional Materials and Devices, Fraunhofer Institute for Applied Polymer Research)

Publication Information

Journal of Information Display / v.13, no.2, 2012 , pp. 91-95 More about this Journal

Abstract

Indium phosphide (InP) quantum dots (QDs) are considered alternatives to Cd-containing QDs for application in light-emitting devices. The multishell coating with ZnSe/ZnS was shown to improve the photoluminescence quantum yield (QY) of InP QDs more strongly than the conventional ZnS shell coating. Structural proof for this system was provided by X-ray diffraction and transmission electron microscopy. QY values in the range of 50-70% along with peak widths of 45-50 nm can be routinely achieved, making the optical performance of InP/ZnSe/ZnS QDs comparable to that of Cd-based QDs. The fabrication of a working electroluminescent light-emitting device employing the reported material demonstrated the feasibility of the desired application.

Keywords

indium phosphide; multishell; colloidal quantum dots; QLED;

Citations & Related Records

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