2005
DOI: 10.1016/j.jlumin.2004.09.091
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On the role of magnetic field spin effect in photoconductivity of composite films of MEH-PPV and nanosized particles of PbS

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Cited by 37 publications
(23 citation statements)
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“…The comparison between MEHPPV and P3HT implies that the negative component in the MFE PC can be attributed to the triplet exciton-charge reaction. [82] Furthermore, the experimental result in which the triplet Ir(ppy) 3 does not show any MFE PC suggests that the effects on triplet exciton-charge reaction rate constant depend on SOC. This is because when the SOC is not very strong, a low magnetic field can weaken the ionic characteristic of the triplet excitons, and consequently decrease the triplet-charge reaction governed by electrical dipole-dipole interactions.…”
Section: Mfes On Photocurrent (Mfe Pc )mentioning
confidence: 99%
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“…The comparison between MEHPPV and P3HT implies that the negative component in the MFE PC can be attributed to the triplet exciton-charge reaction. [82] Furthermore, the experimental result in which the triplet Ir(ppy) 3 does not show any MFE PC suggests that the effects on triplet exciton-charge reaction rate constant depend on SOC. This is because when the SOC is not very strong, a low magnetic field can weaken the ionic characteristic of the triplet excitons, and consequently decrease the triplet-charge reaction governed by electrical dipole-dipole interactions.…”
Section: Mfes On Photocurrent (Mfe Pc )mentioning
confidence: 99%
“…[72][73][74][75][76][77][78][79][80][81] This phenomenon, named as MFEs on the photocurrent (MFE PC ), can be readily observed in organic semiconducting materials [82][83][84][85] and also in organic-material complex systems [60,86,87] with an amplitude of about 5%. It can be envisioned that the MFEs on photocurrents can elucidate not only photoexcited processes but also photovoltaic channels in organic semiconducting materials.…”
Section: Mfes On Photocurrent (Mfe Pc )mentioning
confidence: 99%
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“…In the literature the high-field effect on the photocurrent, and even regular OMAR, is sometimes explained by these reactions of triplet excitons. 34,35 However, most of the calculations on triplet reactions in the literature are focused on single crystals. 13,33,36 We will use the stochastic Liouville equation to study the magnetic-field-dependence of triplet reactions in disordered organic semiconductors.…”
Section: A Basic Conceptsmentioning
confidence: 99%