Effect of electric field on the photoluminescence of polymer-inorganic nanoparticle composites
作者： Andrey N. Aleshin , Igor P. Shcherbakov , Elena L. Alexandrova , Energue A. Lebedev
DOI: 10.1016/J.SSC.2008.01.040
关键词: Chemical physics 、 Tunnel effect 、 Photoluminescence 、 Voltage 、 Excited state 、 Spontaneous emission 、 Composite number 、 Electric field 、 Materials science 、 Nanoparticle 、 Optics
摘要: Abstract We report on the effect of electric field photoluminescence (PL) from a composite consisting BEHP-co-MEH-PPV conjugated polymer mixed with ZnO nanoparticles. have found that in absence PL emission BEHP-co-MEH-PPV-ZnO has two maxima blue and green-yellow regions. Application voltage bias to planar gold electrodes suppresses green yellow shifts only maximum towards region. Current–voltage characteristics exhibit nonlinear behaviour typical nonhomogeneous polymer-inorganic structures. Generation excited states structure implies presence several radiative recombination mechanisms including formation polymer-nanoparticle complexes “exciplex” charge transfer between nanoparticle can be controlled by an field.
harvard.edu
arxiv.org
elsevier.com
sci-hub.se 参考文章(16)
Charles E Swenberg, Martin Pope, Electronic Processes in Organic Crystals and Polymers ,(1999)
R. H. Friend, R. W. Gymer, A. B. Holmes, J. H. Burroughes, R. N. Marks, C. Taliani, D. D. C. Bradley, D. A. Dos Santos, J. L. Brédas, M. Lögdlund, W. R. Salaneck, Electroluminescence in conjugated polymers Nature. ,vol. 397, pp. 121- 128 ,(1999) , 10.1038/16393
G. N. Panin, T. W. Kang, A. N. Aleshin, A. N. Baranov, Y.-J. Oh, I. A. Khotina, Electric field switching between blue-green and red cathodoluminescence in poly(4,4′- diphenylene diphenylvinylene) mixed with ZnO:Mg nanoparticles Applied Physics Letters. ,vol. 86, pp. 113114- ,(2005) , 10.1063/1.1886911
S. Blumstengel, S. Sadofev, C. Xu, J. Puls, F. Henneberger, Converting Wannier into Frenkel excitons in an inorganic/organic hybrid semiconductor nanostructure. Physical Review Letters. ,vol. 97, pp. 237401- ,(2006) , 10.1103/PHYSREVLETT.97.237401
S. Karg, M. Meier, W. Riess, Light-emitting diodes based on poly-p-phenylene-vinylene: I. Charge-carrier injection and transport Journal of Applied Physics. ,vol. 82, pp. 1951- 1960 ,(1997) , 10.1063/1.366003
A.C. Morteani, A.S. Dhoot, J.-S. Kim, C. Silva, N.C. Greenham, C. Murphy, E. Moons, S. Ciná, J.H. Burroughes, R.H. Friend, Barrier‐Free Electron–Hole Capture in Polymer Blend Heterojunction Light‐Emitting Diodes Advanced Materials. ,vol. 15, pp. 1708- 1712 ,(2003) , 10.1002/ADMA.200305618
P. M. Borsenberger, A. I. Ateya, Hole photogeneration in poly(N-vinylcarbazole) Journal of Applied Physics. ,vol. 49, pp. 4035- 4040 ,(1978) , 10.1063/1.325363
L. Onsager, Initial Recombination of Ions Physical Review. ,vol. 54, pp. 554- 557 ,(1938) , 10.1103/PHYSREV.54.554
S. Welter, K. Brunner, J. W. Hofstraat, L. De Cola, Electroluminescent device with reversible switching between red and green emission Nature. ,vol. 421, pp. 54- 57 ,(2003) , 10.1038/NATURE01309
V.Z. Mordkovich, H. Hayashi, M. Haemori, T. Fukumura, M. Kawasaki, Discovery and Optimization of New ZnO-Based Phosphors Using a Combinatorial Method† Advanced Functional Materials. ,vol. 13, pp. 519- 524 ,(2003) , 10.1002/ADFM.200304335