عنوان

Self-Trapped Excitons

3642974325

9783642974328

b576716

Self-Trapped Excitons

[Book]

by K.S. Song, Richard T. Williams.

Berlin, Heidelberg

Springer Berlin Heidelberg

1993

(xii, 404 pages 219 illustrations, 2 illustrations in color.)

Springer series in solid-state sciences, 105.

1 Introduction --; 1.1 Excitons --; 1.2 Charge Carriers and Excitons in a Deformable Lattice --; 1.3 Scope of this Monograph --; 2 Investigation of Self-Trapped Excitons from a Defect Perspective --; 2.1 Atomistic Structure of Self-Trapped Carriers --; 2.2 Self-Trapped Excitons --; 2.3 Experimental Methods --; 2.4 Theoretical Methods --; 3 Condensed Rare Gases --; 3.1 Electronic Structure --; 3.2 Spectroscopy --; 3.3 Theory of the Self-Trapped Exciton in Rare Gas Solids --; 3.4 Desorption from the Surface --; 4 Alkaline Earth Fluorides --; 4.1 Electronic Structure --; 4.2 Lattice Defects --; 4.3 Theory of Self-Trapped Excitons in Fluorite Crystals --; 4.4 Spectroscopy --; 4.5 Lattice Defect Formation --; 5 Alkali Halides --; 5.1 Material Properties --; 5.2 Theory of Self-Trapped Exciton Structure --; 5.3 Luminescence --; 5.4 Magneto-Optics, ODMR, and ODENDOR --; 5.5 Excited-State Absorption --; 5.6 Resonant Raman Scattering --; 5.7 Dynamics --; 5.8 Kinetics --; 6 Defect Formation in Alkali Halide Crystals --; 6.1 Self-Trapped Excitons as Nascent Defect Pairs --; 6.2 Thermally Activated Conversion --; 6.3 Dynamic Conversion Process --; 6.4 Stabilization of the Primary Defects --; 6.5 Defects and Desorption at Surfaces --; 7 Silicon Dioxide --; 7.1 Material Properties --; 7.2 Theory of Self-Trapped Excitons --; 7.3 Experiments on Crystalline SiO2 --; 7.4 Experiments on Amorphous SiO2 --; 7.5 Self-Trapped Holes in SiO2 --; 7.6 Defect Generation Processes --; 8 Simple Organic Molecular Crystals --; 8.1 Material Properties --; 8.2 Pyrene --; 8.3 Anthracene --; 8.4 Perylene --; 9 Silver Halides --; 9.1 Electronic Structure and Exciton Spectra --; 9.2 Self-Trapped Hole in AgCl --; 9.3 Self-Trapped Exciton in AgCl --; 10 As2Se3 and Other Chalcogenides --; 10.1 Structure and Electronic States of As2Se3 --; 10.2 The Self-Trapped Exciton --; 10.3 Spectroscopy --; 10.4 STE to Defect Conversion in Amorphous Chalcogenides --; 10.5 Spectroscopy in Crystalline Trigonal Selenium --; 11 Other Materials, Extrinsic Self-Trapping, and Low-Dimensional Systems --; 11.1 Ammonium Halides --; 11.2 KMgF3 and Related Perovskites --; 11.3 Alkaline-Earth Fluorohalides --; 11.4 Alkali Silver Halides --; 11.5 LiYF4 --; 11.6 Extrinsic Self-Trapping in ZnSe1?xTex --; 11.7 Quasi-One-Dimensional Systems --; References.

In crystals as diverse as sodium chloride, silicon dioxide, sold xenon, pyrene, arsenic triselenide, and silver chloride, the fundamental electronicexcitation (exciton) is localized within its own lattice distortion field very shortly after its creation. This book discusses the structure if the self-trapped exciton (STE) and its evolution along the path of its return to the ground state or to a defect state of crytal. A comprehensive review of experiments on STEs in a wide range of materials has been assembled, including extensive tables of data. Throughout, emphasisis given to the basic physics underlying various manifestations of self-trapping. The role of the spontaneous symmetry-breaking or "off-center"relaxation in STE structure is examined thoroughly, and leads naturally to the subject of lattice defect formation as a product of STE relaxation. The theory of STEs is developed from a localized, atomistic perspective using self-consistent methods adapted from the theory of defects in solids. At this time of rapid progress in STEs, researchers will welcome the first monograph dedicaded solely to this topic.

Physical organic chemistry.

Physics.

by K.S. Song, Richard T. Williams.

K S Song

Richard T Williams

[Book]

Y