20.3: Optimizing the Balance of Holes and Electrons in Inverted Quantum Dot Light‐Emitting Diodes by Inserting Electron Transportation Barrier Layer. Issue 1 (June 2015)

• Record Type: Journal Article
• Authors: Jiang, Yibin; Tang, Haoning; Chen, Shuming; Kwok, Hoi‐Sing
• Is Part Of: Digest of technical papers. Volume 46:Issue 1(2015)
• Page Start: 274
• Page End: 277
• Publication Date: 2015-06
• Subjects: quantum dot light‐emitting diodes -- barrier layer -- charge balance -- optimization; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.10463
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : In this study, the hole‐electron balance of quantum dot lightemitting diodes (QDLED) was tuned in order to achieve efficiency enhancement. This hole‐electron balance optimization was realized by inserting thin barrier layer in the electron transportation layer. Although the current density was slightly sacrificed because of the electron blocking of the barrier layer, the charge balance was improved hence leading to 123% efficiency enhancement.