采用对主体材料8-hydroxyquinoline aluminum(Alq3)掺杂的方法,通过对3种小分子荧光染料Dimethylquinacridone(DMQA)、4-(Dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)、5,6,11,12-tetraphenylnaphthacene(Rubrene)的研究,比较了其光致发光光谱和吸收光谱,利用F(o)rster能量传递(ET)理论和直接载流子俘获(DCT)理论对这3种材料作为掺杂染料的类型进行了讨论.研究表明,3种荧光染料同时具有F(o)rster ET类型和DCT类型掺杂剂的性质,并不只是一种单一类型的掺杂染料,由此推测大多数掺杂染料可能应同时属于此两种类型.
参考文献
| [1] | Tang C W;Vanslyke S A .Organic Electroluminescent diodes[J].Applied Physics Letters,1987,51:913. |
| [2] | Yu JS.;Sone M.;Miyata S.;Li MR.;Watanabe T.;Chen ZJ. .Red-light-emitting organic electroluminescent devices with bisanil dye as emitter[J].Japanese journal of applied physics,2001(5A):3201-3205. |
| [3] | Yu J;Li W;Jiang Y et al.Bright yellow organic electroluminescent devices using a novel silole derivative as emitter[J].Japanese Journal of Applied Physics,2007,46:L31. |
| [4] | Murata H.;Merritt C.D.;Kafafi Z.H. .Emission mechanism in rubrene-doped molecular organiclight-emitting diodes: direct carrier recombination at luminescentcenters[J].IEEE journal of selected topics in quantum electronics: A publication of the IEEE Lasers and Electro-optics Society,1998(1):119-124. |
| [5] | Liu HY.;Gao WB.;Yang KX.;Chen BJ.;Liu SY.;Bai YB. .Effect of rubrene on characteristic of red organic electroluminescent device doped with rubrene[J].Chemical Physics Letters,2002(5-6):353-356. |
| [6] | Kang H Y;Kang G W;Park K M et al.Comparison of the electroluminescence of a red fluorescent dye doped into the Alq3 and Alq3:rubrene mixed host[J].Materials Science and Engineering C,2004,24:229. |
| [7] | Kundu S.;Okada T.;Matsumura M.;Fujihara K. .Excitation migration from photoexcited tris(8-hydroxyquinolino)aluminium to quinacridone in codeposited thin films[J].Japanese journal of applied physics,2000(9A):5297-5300. |
| [8] | Li JZ;Yahiro M;Ishida K;Matsushige K .Influence of doping location and width of dimethylquinacridone on the performance of organic light emitting devices[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2005(3):392-396. |
| [9] | Shaheen S E;Kippelen B;Peyghambarian N et al.Energy and charge transfer in organic-light emitting diodes:A soluble quinacridone study[J].Journal of Applied Physics,1999,85:7939. |
| [10] | Wei F;Zhang X;Cao J et al.Enhancement of red organic light-emitting diode via cascade energy transfer[J].Microelectronics Journal,2006,37:1325. |
| [11] | Feng J et al.Improvement of efficiency and color purity utilizing two-step energy transfer for red organic light-emitting devices[J].Applied Physics Letters,2002,81:2935. |
| [12] | Wang YM;Teng F;Xu Z;Hou YB;Yang SY;Xu XR .Trap effect of an ultrathin DCJTB layer in organic light-emitting diodes[J].Materials Chemistry and Physics,2005(2/3):291-294. |
| [13] | Qiu C;Chen H;Wong M et al.Dopant emission mechanism and the effects of host materials on the behavior of doped organic light-emitting diodes[J].IEEE Transactions on Electron Devices,2002,49:1540. |
| [14] | Kepler R G;Beeson P M;Jacobs S J et al.Electron and hole mobility in tris(8-hydroxyquinolinolato-N1,O8) aluminum[J].Applied Physics Letters,1995,66:3618. |
| [15] | Hamada Y;Kanno H;Tsujioka T et al.Red organic lightemitting diodes using an emitting assist dopant[J].Applied Physics Letters,1999,75:1682. |
| [16] | Kanno H;Hamada Y;Matsusue N et al.Development in OLEDs with co-dopant system for improved efficiency and stability[J].Proceedings of Spie,2004,5214:31. |
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