Ebook: Unconventional Photoactive Solids

The papers in this volume were presented at the Second International Conference on Unconventional Photoactive Solids held at the R&D Center of BP America September 9-12, 1985. It was part of an on-going series of conferences with the main aim of stressing the Interrelationship of solid state physics and solid state chemistry. The choice of topics covered a broad range of light-Induced solid state phenomena with particular emphasis on novel materials and/or novel phenomena. Organic solids, in particular, were emphasized as they are a natural meeting point of solid state physics and chemistry. A general trend In solid state physics Is to more complex materials (e.g. nonequilibrium glassy films, complicated unit cells, extended molecular building blocks, etc.). This trend necessitates the closer interaction between physicists and chemists. This conference reflects this trend quite dramatically. It is a new grouping together of a mix of materials, people and experimental approaches. A typical new theme pulling together this new mix can be seen in Part I. Fractals in Disordered Media. A variety of disordered media give rise to unusual temporal patterns of diffusion and reactions. The more familiar spatial patterns of self-similarity are discussed in the first article by M.F. Barnsley. Another topic pulling together a diverse group of scientists is covered in Part II. Spectral Hole-Burning. A number of leaders in this field are represented In these three papers.

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Content:
Front Matter....Pages i-ix
Fractal Image Encoding....Pages 1-10
Transport and Reactions in Disordered Media....Pages 11-19
Fractal-Like Exciton Kinetics in Porous Glasses, Membranes and Powders....Pages 21-28
Reaction Kinetics on Fractal and Euclidean Structures with Energetic Disorder: Random Walk Simulations....Pages 29-40
Dynamical Hole-Burning Requirements for Frequency Domain Optical Storage....Pages 41-51
Zero-Phonon Lines, Photoburning of Spectral Holes, Information Storage, Photon Echo, in Solid Systems....Pages 53-56
Evolution of Spectral Holes on Logarithmic Time Scales....Pages 57-61
Exciton Transport in Naphthalene-Doped Poly (Methylmethyl-Acrylate): Spatial and Energetic Disorder....Pages 63-81
Excitation Transport Kinetics in Vapor-Deposited Naphthalene....Pages 83-103
Response of an Insulating Material to Photoexcitation....Pages 105-113
Excitron Transport in Mixed Crystals: Quantum Percolation....Pages 115-116
On Electron Transfer Reactions in Disordered Media....Pages 117-131
Time-Resolved Dielectric Loss as a Probe of Interfacial Electron Transfer Dynamics....Pages 133-143
Charge Transfer in Polypyrrole and Electrochromism of Prussian Blue....Pages 145-152
Energy Transfer in Doped Polymer Films....Pages 153-163
Vibrational Dynamics of Hydrogen Bonded Solids: Phonons and Optical Damage....Pages 165-169
An Integrated Fractal Analysis of Silica: Electronic Energy Transfer, Small-Angle X-ray-Scattering and Adsorption....Pages 171-178
Structural Changes and Oscillations during the Sol-Gel Transition in Silica Gel Glass as Probed by Pyrene Excimerization....Pages 179-183
Organic Molecule, 1,4-Dihydroxy-9, 10-Anthraquinone, Doped Amorphous Silica Prepared by Sol-Gel Method and its Structures Studied by Photochemical Hole Burning....Pages 185-192
Isolation and Trapping of Organic Photoactive Molecules in Silica Glass Matrices at Room Temperature....Pages 193-196
Optical Modulation Spectroscopy of Native Defects in Amorphous Semiconductors and Conducting Polymers....Pages 197-205
Microstripline Transient Photocurrents: A Probe of Carrier Thermalization and Band-Tail State Densities in Amorphous Semiconductors....Pages 207-210
Picosecond Decay of Photoinduced Absorption in Hydrogenated Amorphous Silicon....Pages 211-224
Picosecond Transient Grating Experiments on Hydrogenated Amorphous Silicon: A Model for Surface Quenching....Pages 225-236
Langmuir-Blodgett Electronic Devices....Pages 237-241
High-Resolution Photorefractive Polymers for Integrated Optics....Pages 243-251
Solar Energy Conversion by Means of Parametric Mechnisms....Pages 253-254
Back Matter....Pages 255-259

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Content:
Front Matter....Pages i-ix
Fractal Image Encoding....Pages 1-10
Transport and Reactions in Disordered Media....Pages 11-19
Fractal-Like Exciton Kinetics in Porous Glasses, Membranes and Powders....Pages 21-28
Reaction Kinetics on Fractal and Euclidean Structures with Energetic Disorder: Random Walk Simulations....Pages 29-40
Dynamical Hole-Burning Requirements for Frequency Domain Optical Storage....Pages 41-51
Zero-Phonon Lines, Photoburning of Spectral Holes, Information Storage, Photon Echo, in Solid Systems....Pages 53-56
Evolution of Spectral Holes on Logarithmic Time Scales....Pages 57-61
Exciton Transport in Naphthalene-Doped Poly (Methylmethyl-Acrylate): Spatial and Energetic Disorder....Pages 63-81
Excitation Transport Kinetics in Vapor-Deposited Naphthalene....Pages 83-103
Response of an Insulating Material to Photoexcitation....Pages 105-113
Excitron Transport in Mixed Crystals: Quantum Percolation....Pages 115-116
On Electron Transfer Reactions in Disordered Media....Pages 117-131
Time-Resolved Dielectric Loss as a Probe of Interfacial Electron Transfer Dynamics....Pages 133-143
Charge Transfer in Polypyrrole and Electrochromism of Prussian Blue....Pages 145-152
Energy Transfer in Doped Polymer Films....Pages 153-163
Vibrational Dynamics of Hydrogen Bonded Solids: Phonons and Optical Damage....Pages 165-169
An Integrated Fractal Analysis of Silica: Electronic Energy Transfer, Small-Angle X-ray-Scattering and Adsorption....Pages 171-178
Structural Changes and Oscillations during the Sol-Gel Transition in Silica Gel Glass as Probed by Pyrene Excimerization....Pages 179-183
Organic Molecule, 1,4-Dihydroxy-9, 10-Anthraquinone, Doped Amorphous Silica Prepared by Sol-Gel Method and its Structures Studied by Photochemical Hole Burning....Pages 185-192
Isolation and Trapping of Organic Photoactive Molecules in Silica Glass Matrices at Room Temperature....Pages 193-196
Optical Modulation Spectroscopy of Native Defects in Amorphous Semiconductors and Conducting Polymers....Pages 197-205
Microstripline Transient Photocurrents: A Probe of Carrier Thermalization and Band-Tail State Densities in Amorphous Semiconductors....Pages 207-210
Picosecond Decay of Photoinduced Absorption in Hydrogenated Amorphous Silicon....Pages 211-224
Picosecond Transient Grating Experiments on Hydrogenated Amorphous Silicon: A Model for Surface Quenching....Pages 225-236
Langmuir-Blodgett Electronic Devices....Pages 237-241
High-Resolution Photorefractive Polymers for Integrated Optics....Pages 243-251
Solar Energy Conversion by Means of Parametric Mechnisms....Pages 253-254
Back Matter....Pages 255-259
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