PHOTOSENSITIZATION OF CONDUCTION IN MOLECULAR SOLIDS *

Abstract— The mechanism of spectral sensitization of conduction in molecular photoconductors has been investigated in systems in which sensitizer and photoconductor form separate layers. The efficiency of sensitization is strongly influenced by external fields, approaching 100 per cent at 106 V/cm in certain cases. The spectral response, efficiency, and field dependence are characteristic primarily of the sensitizer, while the transport characteristics are largely determined by the photoconductor.

[1]  S. Tutihasi.  Electronic Properties of Furan‐Quinone Pigments. I. Charge‐Transport Studies , 1972 .

[2]  J. Mort,et al.  Transient Accumulation of Interfacial Charge in Photoconductor-Dielectric Systems , 1972 .

[3]  J. Mort.  Transient Photoinjection of Holes from Amorphous Se into Poly ( N − V i n y l C a r b a z o l e ) , 1972 .

[4]  B. Nickel,et al.  A new method for the determination of the diffusion coefficient of triplet excitons in the c′-direction of crystalline anthracene , 1971 .

[5]  P. J. Regensburger,et al.  Photoinduced injection of electronic charge carriers from phthalocyanine into selenium , 1971 .

[6]  A. G. Leiga.  Photoemission from Amorphous Selenium , 1970 .

[7]  M. Sōma.  Electron Injection into Quinone Crystals , 1970 .

[8]  M. Sōma.  Photoinduced electron-transfer reactions at the surface of organic crystals , 1970 .

[9]  J. Mort,et al.  Steady state and transient photoemission into amorphous insulators , 1970 .

[10]  Damodar M. Pai,et al.  Transient Photoconductivity in Poly(N‐vinylcarbazole) , 1970 .

[11]  A. Weller,et al.  Energy transfer from adsorbed dye molecules to anthracene single crystals , 1969 .

[12]  K. Morimoto,et al.  Dye Sensitization of Photoconductivity of Poly-N-Vinylcarbazole. I. Quantum Yield , 1969 .

[13]  W. Spear,et al.  Drift mobility techniques for the study of electrical transport properties in insulating solids , 1969 .

[14]  F. Willig,et al.  Injection of defect electrons into perylene single crystals by electrolytic contacts , 1969 .

[15]  J. Mort,et al.  Photoemission of Holes from Metals into the Organic Polymer Poly-N-Vinyl-Carbazole , 1968 .

[16]  P. J. Regensburger.  OPTICAL SENSITIZATION OF CHARGE CARRIER TRANSPORT IN POLY(N‐VINYL CARBAZOLE) * , 1968, Photochemistry and photobiology.

[17]  R. Komp,et al.  ELECTRONIC ENERGY STATES OF CERTAIN SENSITIZERS AND DIELECTRICS * , 1968, Photochemistry and photobiology.

[18]  Peter J. Warter,et al.  Field-Controlled Photogeneration and Free-Carrier Transport in Amorphous Selenium Films , 1968 .

[19]  J. Sharp,et al.  Spectroscopic characterization of a new polymorph of metal-free phthalocyanine , 1968 .

[20]  B. H. Schechtman,et al.  Expiremental determination of the optical density of states for phthalocyanines and porphyrins , 1968 .

[21]  F. Rebentrost,et al.  Sensitization of charge injection into semiconductors with large band gap , 1968 .

[22]  J. Hale,et al.  Photo-generation of carriers in molecular crystals through electrochemical electrode processes☆ , 1968 .

[23]  T. K. Mukherjee.  Electron affinities of polynuclear acceptors : Nitro derivatives of fluoren-Δ9,α-malononitrile , 1968 .

[24]  J. Sharp.  Photoconductivity of N-isopropylcarbazole and its picryl chloride complex , 1967 .

[25]  J. Weigl,et al.  Charge Transfer Sensitization of Some Organic Photoconductors Based on Carbazole , 1967 .

[26]  Y. Hayashi,et al.  Sensitization in the Photoconductance of Poly-N-vinylcarbazole , 1966 .

[27]  J. Sharp.  Charge-Transfer Complexes of N-Isopropylcarbazole , 1966 .

[28]  F. Wilkinson.  Electronic energy transfer , 1966 .

[29]  R. Norris,et al.  Photoemission from amorphous and metallic selenium in the vacuum ultraviolet. , 1965 .

[30]  J. L. Hartke,et al.  Electronic States in Vitreous Selenium , 1965 .

[31]  H. Hoegl.  On Photoelectric Effects in Polymers and Their Sensitization by Dopants1 , 1965 .

[32]  W. Schneider,et al.  Photoconduction in Anthracene Induced by Triplet Excitons , 1964 .

[33]  P. J. Regensburger.  Voltage Decay Measurement of Photoexcitation and Trapping of Carriers in Selenium , 1964 .

[34]  G. Warfield,et al.  Photoconductivity in Metal‐Free Phthalocyanine Single Crystals , 1963 .

[35]  H. Meier.  Die Photochemie der organischen Farbstoffe , 1963 .

[36]  M. Pope.  Surface Ionization Energies of Organic Compounds: Phthalocyanines , 1962 .

[37]  M. Pope,et al.  Charge Injection into Organic Crystals: Influence of Electrodes on Dark‐ and Photoconductivity , 1962 .

[38]  Hartke.  DRIFT MOBILITIES OF ELECTRONS AND HOLES AND SPACE-CHARGE-LIMITED CURRENTS IN AMORPHOUS SELENIUM FILMS. Technical Note No. 5 , 1961 .

[39]  M. Calvin,et al.  Electrical Properties of Organic Solids. IV. Charge Carrier Diffusivity in Metal‐Free Phthalocyanine , 1961 .

[40]  W. Spear.  The Hole Mobility in Selenium , 1960 .

[41]  R. Kepler.  Charge Carrier Production and Mobility in Anthracene Crystals , 1960 .

[42]  M. Pope,et al.  Positive Hole Injection into Organic Crystals , 1960 .

[43]  William T. Simpson,et al.  Coupling Strength for Resonance Force Transfer of Electronic Energy in Van der Waals Solids , 1957 .

[44]  R. C. Nelson.  Contact Potential Difference between Sensitizing Dye and Substrate , 1956 .

[45]  H. Vogel.  Ueber die Lichtempfindlichkeit des Bromsilbers für die sogenannten chemisch unwirksamen Farben , 1873 .