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Kalinowski J, Cocchi M, Virgili D P, et al. Magnetic field effects on emission and current in Alq3-based electroluminescent diodes. Chem Phys Lett, 2003, 380: 710–715
[8]
Mermer ？, Veeraraghavan G, Francis T L, et al. Large magnetoresistance at room-temperature in small-molecular-weight organic semiconductor sandwich devices. Solid State Comm, 2005, 134: 631–636
[9]
Hu B, Wu Y. Tuning magnetoresistance between positive and negative values in organic semiconductors. Nat Mater, 2007, 6: 985–990
[10]
Bloom F L, Wagemans W, Kemerink M, et al. Separating positive and negative magnetoresistance in organic semiconductor devices. Phys Rev Lett, 2007, 99: 257201
[11]
Bloom F L, Wagemans W, Kemerink M, et al. Correspondence of the sign change in organic magnetoresistance with the onset of bipolar charge transport. Appl Phys Lett, 2008, 93: 263302
[12]
Nguyen T D, Sheng Y, Wohlgenannt M, et al. Magnetic field-effects in bipolar, almost hole-only and almost electron-only tris-(8-hydroxyquinoline) aluminum devices[J].Phys Rev B.2008, 77:235209-
[13]
Bergeson J D, Prigodin V N, Lincoln D M, et al. Inversion of magnetoresistance in organic semiconductor. Phys Rev Lett, 2008, 100: 067201
[14]
Zhang Y, Liu R, Xiong Z H, et al. Low temperature magnetic field effects in Alq3-based organic light emitting diodes. Appl Phys Lett, 2009, 94: 083307
[15]
Hu B, Yan L, Shao M. Magnetic field effect in organic semiconducting materials and devices. Adv Mater, 2009, 21: 1500–1516
[16]
Lei Y L, Zhang Y, Liu R, et al. Driving current and temperature dependent magnetic-field modulated electroluminescence in Alq3-based organic light emitting diode. Org Electron, 2009, 10: 889–894
[17]
Xin L Y, Li C N, Li F, et al. Inversion of magnetic field effects on electrical current and electroluminescence in tris-(8-hydroxyquinoline) aluminum based light-emitting diodes. Appl Phys Lett, 2009, 95: 123306
[18]
Ding B F, Yao Y, Sun Z Y, et al. Magnetic field effects on the electroluminescence of organic light emitting devices: A tool to indicate the carrier mobility. Appl Phys Lett, 2010, 97: 163302
[19]
Wang F J, B?ssler H, Vardeny Z V. Magnetic field effects in π-conjugated polymer-fullerene blends: Evidence for multiple components. Phys Rev Lett, 2008, 101: 2368052
[20]
Majumdar S, Majumdar H S, Aarnio H, et al. Role of electron-hole pair formation in organic magnetoresistance. Phys Rev B, 2009, 79: 201202(R)
[21]
Lei Y L, Song Q L, Zhang Y, et al. Magnetoconductance of polymer-fullerene bulk heterojunction solar cells. Org Electron, 2009, 10: 1288–1292
[22]
Bloom F L, Kemerink M, Wagemans W, et al. Sign inversion of magnetoresistance in space-charge limited organic devices. Phys Rev Lett, 2009, 103: 066601
[23]
Bobbert P A, Nguyen T D, Wohlgenannt M, et al. Bipolaron mechanism for organic magnetoresistance. Phys Rev Lett, 2007, 99: 216801
[24]
Ern V, Merrifield R E. Magnetic field effect on triplet exciton quenching in organic crystals. Phys Rev Lett, 1968, 21: 609–611
[25]
Wittmer M, Zshokke-Granacher I. Exciton-charge carrier interactions in the electroluminescence of crystalline anthracene. J Chem Phys, 1975, 63: 4187–4194
