Photoconductivity of the charge transfer complex crystals. Anthracene-Dimethylpyromellitimide

Frankevich, E. L.; Tribel, M. M.; Sokolik, I.; Kotov, B. V.

doi:10.1002/pssa.2210400233

Cited by 13 publications

(2 citation statements)

References 9 publications

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“…A point may be raised about the role of carrier lifetime and carrier gain in affecting the observed currents. 35 To begin with, we are not generating hole-electron pairs inside the crystal. Secondly, since we are using ohmic contacts, there is essentially no role to be played by excitons insofar as increasing the rate of injection is concerned.…”

Section: Effect Of Magnetic Field (H) On the Photoenhanced Currentmentioning

confidence: 99%

Space Charge Controlled Currents in Insulators: Detection of Virtual Anode

Pope

Solowiejczyk

1975

Molecular Crystals and Liquid Crystals

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Section: Effect Of Magnetic Field (H) On the Photoenhanced Currentmentioning

confidence: 99%

Space Charge Controlled Currents in Insulators: Detection of Virtual Anode

Pope

Solowiejczyk

1975

Molecular Crystals and Liquid Crystals

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“…Interested reader might follow a review discussing these effects [28]. A similar technique was used in early 1980s for investigation of photoinduced charge separation in the systems comprising organics dyes such as chlorophyll and fucoxanthin [29,30], conjugated polymers and organic donor-acceptor blends [31][32][33]. Some other researchers reported the synthesis and electrical conductivity of polyacetylene in early 1960s [6,7], studied behavior of organic semiconductors under radiation [34], and investigated charge generation and transport in natural photosynthetic systems [35].…”

Section: Introductionmentioning

confidence: 99%

Research in the Field of Organic Photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences

Troshin

2015

Organic Photonics and Photovoltaics

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In the present review we highlight the main research activities in the field of organic photonics and photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences (IPCP RAS). Extensive investigation of optical and electrical properties of π-conjugated organic compounds performed at IPCP RAS since 1960's resulted in design of many exciting materials representing organic semiconductors, metals and superconductors. Organic Schottky barrier and p/n junction photovoltaic devices constructed at IPCP RAS in 1960's and 1970's were among the first examples of reasonably efficient organic solar cells at that time. These early discoveries inspired younger generations of the researchers to continue the work of their mentors and explore the world of organic materials and photonic devices such as molecular photonic switches, organic light emitting diodes, solar cells, photodetectors, photoswitchable organic field-effect transistors and memory elements.

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Paramagnetic Resonance in Electron-Hole Pairs in C60 Single Crystals Detected by Photoconductivity Measurements

Ossipyan

Golovin

Lopatin

et al. 2001

phys. stat. sol. (b)

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Introduction It is well known that the evolution of electron-hole pairs generated by light in a number of aromatic organic semiconductors is sensitive to a static magnetic field (MF) with induction B < 1 T [1--5]. Transitions in the spin state of the pairs under the action of MF results in changes of their macroscopic material properties: dark conductivity and photoconductivity [1--3], luminescence and fluorescence [4,5]. A number of electronic properties (width of band gap, polyaromaticity, closed p-electron shells, etc.) of a new promising material --fullerite C 60 --are very similar to those of polyacenes investigated in [1--5]. A proof of the temperature-independent hopping conductivity has been presented in [6]. The effect of a static MF with B < 1 T on the photoconductivity of C 60 has been published in [7]. The above mentioned facts suggest that the spin state of electronhole pairs in fullerites can also play an important role in determining their photoelectronic properties. As a rule the duration of the spin-lattice relaxation in electron-hole pairs is much longer than their lifetime in such materials, and MF mixes singlet and triplet spin states of the light induced carriers sooner than the perturbation of these states by thermal fluctuations. This explains the possibility to observe an up to 10% increase of photocurrent in a "weak" MF B < 1 T at room temperature [8]. The main goal of this work was to investigate the possibility for control over spin states of charge carriers and photoconductivity of C 60 by using a magnetic field.

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Photoconductivity of the charge transfer complex crystals. Anthracene-Dimethylpyromellitimide

Cited by 13 publications

References 9 publications

Space Charge Controlled Currents in Insulators: Detection of Virtual Anode

Space Charge Controlled Currents in Insulators: Detection of Virtual Anode

Research in the Field of Organic Photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences

Paramagnetic Resonance in Electron-Hole Pairs in C60 Single Crystals Detected by Photoconductivity Measurements

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