caa a22 4500 463212819 CHVBK 20180405153146.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s00339-007-4199-y doi (NATIONALLICENCE)springer-10.1007/s00339-007-4199-y Effects of carrier barrier on voltage controllable color tunable OLEDs [Elektronische Daten] [Wallace C.H. Choy, J.H. Niu, Xue-Wen Chen, W.L. Li, P.C. Chui] The effects of the carrier blocking layer on the emission color of the color tunable organic light emitting devices (OLEDs) have been investigated. Color tuning is controlled by the applied voltage. Both the experimental and theoretical results show that inserting a hole blocking layer between two adjacent emission layers will make the color tunable region move toward the wide bandgap emission layer of blue color in our case. By replacing the hole blocking layer with an electron blocking layer, the color tunable region will shift toward the small bandgap emission layer of red. Besides shifting the tunable region toward the pure spectral color, the introduction of the carrier blocking layer can extend the color tunable range. Springer-Verlag, 2007 Choy Wallace C.H. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut Niu J.H. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut Chen Xue-Wen Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut Li W.L. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, P.R. China aut Chui P.C. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut Applied Physics A Springer-Verlag 89/3(2007-11-01), 667-671 0947-8396 89:3<667 2007 89 339 https://doi.org/10.1007/s00339-007-4199-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-4199-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Choy Wallace C.H. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut NATIONALLICENCE 700 1- Niu J.H. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut NATIONALLICENCE 700 1- Chen Xue-Wen Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut NATIONALLICENCE 700 1- Li W.L. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, P.R. China aut NATIONALLICENCE 700 1- Chui P.C. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 89/3(2007-11-01), 667-671 0947-8396 89:3<667 2007 89 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer