Photoinjection of holes into anthracene crystals using aqueous I3 - solutions

Magnetic field effects

Frank Vogel, Nicholas Geacintov, Martin Pope

Research output: Contribution to journalArticle

Abstract

The photoinjection efficiency of holes into anthracene by irradiated aqueous I3 - electrodes is decreased by the application of an external magnetic field of up to 100 kG. The effect is attributed to the magnetic field enhanced dissociation of electronically excited I2 (I2*) in solution. The I2* is proposed as a photodissociation product of excited I3 -. Atomic iodine does not seem to play a major role in the photoinjection process. The action spectrum is given and a kinetic scheme is proposed. Preliminary results on tetracene, perylene, and dinitronaphthalene show great differences from anthracene.

Original languageEnglish (US)
Pages (from-to)1208-1222
Number of pages15
JournalJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
Volume69
DOIs
StatePublished - 1973

Fingerprint

Magnetic field effects
anthracene
Perylene
Magnetic fields
aqueous solutions
Photodissociation
Crystals
magnetic fields
Iodine
photodissociation
iodine
crystals
dissociation
Electrodes
Kinetics
electrodes
kinetics
products
naphthacene

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

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abstract = "The photoinjection efficiency of holes into anthracene by irradiated aqueous I3 - electrodes is decreased by the application of an external magnetic field of up to 100 kG. The effect is attributed to the magnetic field enhanced dissociation of electronically excited I2 (I2*) in solution. The I2* is proposed as a photodissociation product of excited I3 -. Atomic iodine does not seem to play a major role in the photoinjection process. The action spectrum is given and a kinetic scheme is proposed. Preliminary results on tetracene, perylene, and dinitronaphthalene show great differences from anthracene.",
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AU - Pope, Martin

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AB - The photoinjection efficiency of holes into anthracene by irradiated aqueous I3 - electrodes is decreased by the application of an external magnetic field of up to 100 kG. The effect is attributed to the magnetic field enhanced dissociation of electronically excited I2 (I2*) in solution. The I2* is proposed as a photodissociation product of excited I3 -. Atomic iodine does not seem to play a major role in the photoinjection process. The action spectrum is given and a kinetic scheme is proposed. Preliminary results on tetracene, perylene, and dinitronaphthalene show great differences from anthracene.

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