Yang, X.Divayana, Y.Zhao, D.Swee Leck, K.Lu, F.Tiam Tan, S.Putu Abiyasa, A.Zhao Y.Demir, Hilmi VolkanWei Sun, X.2016-02-082016-02-082012-12-060003-6951http://hdl.handle.net/11693/21185We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m2 together with a relatively low turn-on voltage of 4.5 V has been achieved. With the design of a loosely packed QD layer resulting in the direct contact of poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl) benzidine] (poly-TPD) and 2,2′,2″-(1,3,5-benzinetriyl)-tris(1- phenyl-1-H-benzimidazole) (TPBi) in the device, a ternary complementary white QD-LED consisting of blue component (poly-TPD), green component (QDs), and red component (exciplex formed at the interface between poly-TPD and TPBi) has been demonstrated. The resulting white QD-LED shows an excellent color rendering index of 95.EnglishColor rendering indexDirect contactExciplexesGreen componentGreen emissionsWhite light emitting diodesCadmiumLuminanceLight emitting diodesArticle10.1063/1.4769347