Kalinowski J, Szmytkowski J, Stampor W. Magnetic hyperfine modulation of charge photogeneration in solid films of Alq3. Chem Phys Lett, 2003, 378: 380-387 [2] Kalinowski J, Cocchi M, Virgili D, et al. Magnetic field effects on emission and current in Alq3 -based electroluminescent diodes. Chem Phys Lett, 2003, 380: 710-715 [3] 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 [4] Sheng Y, Mermer, Wohlgenannt M, et al. Hyperfine interaction and magnetoresistance in organic semiconductors. Phys Rev B, 2006,74: 045213 [5] Prigodin V N, Bergeson J D, Lincoln D M, et al. Anomalous room temperature magnetoresistance in organic semiconductor. Synth Metal,2006, 156: 757-761 [6] Desai P, Shakya P, Kreouzis T, et al. Magnetoresistance and efficiency measurements of Alq3-based OLEDs. Phys Rev B, 2007, 75:094423 [7] Hu B, Wu Y. Tuning magnetoresistance between positive and negative values in organic semiconductors. Nat Mater, 2007, 6: 985-990 [8] Bloom F L, Wagemans W, Kemerink M, et al. Separating positive and negative magnetoresistance in organic semiconductor devices. Phys Rev Lett, 2007, 99: 257201 [9] 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- [10] Bergeson J D, Prigodin V N, Lincoln D M, et al. Inversion of magnetoresistance in organic semiconductors. Phys Rev Lett, 2008, 100:067201 [11] 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 [12] 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 [13] 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 [14] 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 [15] Bobbert P A, Nguyen T D, Wohlgenannt M, et al. Bipolaron mechanism for organic magnetoresistance. Phys Rev Lett, 2007, 99: 216801 [16] Nguyen T D, Hukic-Markosian G, Wang F J, et al. Isotope effect in spin response of -conjugated polymer films and devices. Nat Mater,2010, 9: 345-352 [17] Nguyen T D, Gautam B R, Ehrenfreund E, et al. Magnetoconductance response in unipolar and bipolar organic diodes at ultrasmall fields. Phys Rev Lett, 2010, 105: 166804 [18] Wagemans W, Koopmans B. Spin transport and magnetoresistance in organic semiconductors. Phys Status Solid B, 2011, 248: 1029-1041 [19] 张勇, 李艳, 李盛慧, 等. 利用光磁共振实验测量地磁场强度. 西南师范大学学报(自然科学版), 2011, 36: 55-58 [20] Hayashi H, Sakaguchi Y, Wakasa M. Magnetic field effects and spin dynamics of radical reactions in solution. Bull Chem Soc Jpn, 2001,74: 773-783 [21] Kersten S P, Schellekens A J, Koopmans B, et al. Magnetic-field dependence of the electroluminescence of organic light-emitting diodes: A competition between exciton formation and spin mixing. Phys Rev Lett, 2011, 106: 197402
[2]
Kalinowski J, Szmytkowski J, Stampor W. Magnetic hyperfine modulation of charge photogeneration in solid films of Alq3. Chem Phys Lett, 2003, 378: 380-387
[3]
Kalinowski J, Cocchi M, Virgili D, et al. Magnetic field effects on emission and current in Alq3 -based electroluminescent diodes. Chem Phys Lett, 2003, 380: 710-715
[4]
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
[5]
Sheng Y, Mermer, Wohlgenannt M, et al. Hyperfine interaction and magnetoresistance in organic semiconductors. Phys Rev B, 2006,74: 045213
[6]
Prigodin V N, Bergeson J D, Lincoln D M, et al. Anomalous room temperature magnetoresistance in organic semiconductor. Synth Metal,2006, 156: 757-761
[7]
Desai P, Shakya P, Kreouzis T, et al. Magnetoresistance and efficiency measurements of Alq3-based OLEDs. Phys Rev B, 2007, 75:094423
[8]
Hu B, Wu Y. Tuning magnetoresistance between positive and negative values in organic semiconductors. Nat Mater, 2007, 6: 985-990
[9]
Bloom F L, Wagemans W, Kemerink M, et al. Separating positive and negative magnetoresistance in organic semiconductor devices. Phys Rev Lett, 2007, 99: 257201
[10]
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-
[11]
Bergeson J D, Prigodin V N, Lincoln D M, et al. Inversion of magnetoresistance in organic semiconductors. Phys Rev Lett, 2008, 100:067201
[12]
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
[13]
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
[14]
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
[15]
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
[16]
Bobbert P A, Nguyen T D, Wohlgenannt M, et al. Bipolaron mechanism for organic magnetoresistance. Phys Rev Lett, 2007, 99: 216801
[17]
Nguyen T D, Hukic-Markosian G, Wang F J, et al. Isotope effect in spin response of -conjugated polymer films and devices. Nat Mater,2010, 9: 345-352
[18]
Nguyen T D, Gautam B R, Ehrenfreund E, et al. Magnetoconductance response in unipolar and bipolar organic diodes at ultrasmall fields. Phys Rev Lett, 2010, 105: 166804
[19]
Wagemans W, Koopmans B. Spin transport and magnetoresistance in organic semiconductors. Phys Status Solid B, 2011, 248: 1029-1041
Hayashi H, Sakaguchi Y, Wakasa M. Magnetic field effects and spin dynamics of radical reactions in solution. Bull Chem Soc Jpn, 2001,74: 773-783
[22]
Kersten S P, Schellekens A J, Koopmans B, et al. Magnetic-field dependence of the electroluminescence of organic light-emitting diodes: A competition between exciton formation and spin mixing. Phys Rev Lett, 2011, 106: 197402
