Solution-processed conjugated polymer organic p-i-n light-emitting diodes with high built-in potential by solution- and solid-state doping
作者： Sankaran Sivaramakrishnan , Mi Zhou , Aravind C. Kumar , Zhi-Li Chen , Rui-Qi Png
DOI: 10.1063/1.3257979
关键词:
摘要: Polymer p-i-n homojunction light-emitting diodes (LEDs) comprising p-doped poly(dioctylfluorene-alt-benzothiadiazole) (F8BT) hole-injection, intrinsic F8BT emitter, and n-doped electron-injection layers have been demonstrated. A thin film was photocrosslinked bulk by nitronium oxidation, then overcoated with an layer which surface contact printing naphthalenide on elastomeric stamp. These LEDs exhibit high built-in potential (Vbi=2.2 V), efficient bipolar injection, greatly improved external electroluminescence efficiency compared to control devices without the structure. modulated photocurrent technique used measure this Vbi, systematically improves diode
scitation.org
harvard.edu
aip.org
researchgate.net 
sci-hub.se 参考文章(22)
M Lögdlund, R Lazzaroni, S Stafström, WR Salaneck, J-L Brédas, None, Direct observation of charge-inducedπ-electronic structural changes in a conjugated polymer Physical Review Letters. ,vol. 63, pp. 1841- 1844 ,(1989) , 10.1103/PHYSREVLETT.63.1841
Peter K. H. Ho, Magnus Granström, Richard H. Friend, Neil C. Greenham, Ultrathin Self‐Assembled Layers at the ITO Interface to Control Charge Injection and Electroluminescence Efficiency in Polymer Light‐Emitting Diodes Advanced Materials. ,vol. 10, pp. 769- 774 ,(1998) , 10.1002/(SICI)1521-4095(199807)10:10<769::AID-ADMA769>3.0.CO;2-3
A. Werner, F. Li, K. Harada, M. Pfeiffer, T. Fritz, K. Leo, S. Machill, n‐Type Doping of Organic Thin Films Using Cationic Dyes Advanced Functional Materials. ,vol. 14, pp. 255- 260 ,(2004) , 10.1002/ADFM.200305053
Peter KH Ho, D Stephen, Richard H Friend, Nir Tessler, All-polymer optoelectronic devices Science. ,vol. 285, pp. 233- 236 ,(1999) , 10.1126/SCIENCE.285.5425.233
C. K. Chiang, S. C. Gau, C. R. Fincher, Y. W. Park, A. G. MacDiarmid, A. J. Heeger, Polyacetylene, (CH)x:n‐type andp‐type doping and compensation Applied Physics Letters. ,vol. 33, pp. 18- 20 ,(1978) , 10.1063/1.90166
K. Harada, A. G. Werner, M. Pfeiffer, C. J. Bloom, C. M. Elliott, K. Leo, Organic homojunction diodes with a high built-in potential: interpretation of the current-voltage characteristics by a generalized Einstein relation. Physical Review Letters. ,vol. 94, pp. 036601- ,(2005) , 10.1103/PHYSREVLETT.94.036601
Calvin K. Chan, Antoine Kahn, Qing Zhang, Stephen Barlow, Seth R. Marder, Incorporation of cobaltocene as an n-dopant in organic molecular films Journal of Applied Physics. ,vol. 102, pp. 014906- ,(2007) , 10.1063/1.2752145
Keng-Hoong Yim, Gregory L. Whiting, Craig E. Murphy, Jonathan J. M. Halls, Jeremy H. Burroughes, Richard H. Friend, Ji-Seon Kim, Controlling Electrical Properties of Conjugated Polymers via a Solution-Based p-Type Doping† Advanced Materials. ,vol. 20, pp. 3319- 3324 ,(2008) , 10.1002/ADMA.200800735
S‐H Khong, Sankaran Sivaramakrishnan, R‐Q Png, L‐Y Wong, P‐J Chia, L‐L Chua, Peter KH Ho, General Photo-Patterning of Polyelectrolyte Thin Films via Efficient Ionic Bis(Fluorinated Phenyl Azide) Photo-Crosslinkers and their Post-Deposition Modification Advanced Functional Materials. ,vol. 17, pp. 2490- 2499 ,(2007) , 10.1002/ADFM.200600506
Rui-Qi Png, Perq-Jon Chia, Jie-Cong Tang, Bo Liu, Sankaran Sivaramakrishnan, Mi Zhou, Siong-Hee Khong, Hardy S. O. Chan, Jeremy H. Burroughes, Lay-Lay Chua, Richard H. Friend, Peter K. H. Ho, High-performance polymer semiconducting heterostructure devices by nitrene-mediated photocrosslinking of alkyl side chains Nature Materials. ,vol. 9, pp. 152- 158 ,(2010) , 10.1038/NMAT2594