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19.1: Efficiency enhancement of indium phosphide (InP) based quantum dot light-emitting diodes by shell thickness tuning

: Kim, Y.; Ippen, C.; Greco, T.; Wedel, A.; Park, M.; Lee, C.; Han, C.J.; Kim, J.


Society for Information Display. SID Symposium Digest of Technical Papers 44 (2013), Nr.1, S.207-209
ISSN: 2168-0159
ISSN: 0082-0830
Fraunhofer IAP ()

We investigated the optoelectronic characteristics of QD-LEDs by tuning ZnS shell thickness of InP/ZnSe/ZnS multishell QDs. Current efficiency of our QD-LEDs fabricated using thicker ZnS shell of QDs was enhanced up to 4.65 cd/A. It is one of the promising results reported so far for Cd-free QD-LEDs.