Low temperature route for synthesis of cadmium selenide quantum dots and their application in fabricating a QD-LED. Issue 1630 (25th February 2014)

• Record Type: Journal Article
• Authors: Jha, Menaka; McCreary, Michael; Vaddiraju, Sreeram; Amos, Delaina A.
• Is Part Of: MRS proceedings. Issue 1630:(2014)
• Publication Date: 2014-02-25
• Subjects: chemical synthesis, -- luminescence, -- optical properties; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/opl.2014.243
• Languages: English
• ISSNs: 0272-9172

Abstract

Abstract: The present study describes the effect of ageing time during the synthesis of oleic acid capped cadmium selenide quantum dots synthesized by the hot injection route and their use in the fabrication of a hybrid quantum dot light emitting device (QD-LED). This hot injection process has been carried out at the lower synthesis temperature of 140°C compared to the conventional temperature of ∼300°C. Fluorescent monodisperse quantum dots of size 3-5 nm and 8-10 nm have been obtained at an ageing time of 2 and 3 hours respectively. An attempt to fabricate a QD-LED has been carried out. Current versus voltage studies show a turn on voltage at 3.06 V with a current of ∼ 87 nA.