Download or read book Photoconductive Behavior of Lead Sulfide Films Volume 2 Appendix IV Photoconductivity in Chemically Deposited Lead Sulfide Layers written by Svein Espevik and published by . This book was released on 1971 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although chemically-deposited PbS layers have been extensively studied over the last twenty-five years, the mechanism of the photoconductivity process in such layers has not been previously understood in any reliable or complete manner. Investigation of the temperature dependence of the electrical conductivity, photoconductivity, Hall coefficient, photo-Hall effect, and thermoelectric power in such layers has been used to answer many of the common questions. Three types of layers have been investigated: (1) without added chemical oxidant in the deposition bath; (2) with a standard proportion of oxidant added; and (3) with four times the standard proportion of oxidant added. Electron microscope studies show that the layers consist of grains and intergranular regions. The author predicts on the basis of this work, that it should be possible in principle to prepare highly photosensitive PbS single crystal detectors.

Download or read book Photoconductive Behavior of Lead Sulfide Films written by Donald K. Smith and published by . This book was released on 1971 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure, chemical composition, and photoelectronic properties of chemically deposited PbS films have been investigated in relationship to variation in the concentration of oxidant used in the deposition. Structure and photoelectronic properties in the PbS film change as the concentration of oxidant is varied. Concomitant variations in the average chemical composition of the films are minor. It was found that the dependence of carrier density and mobility on temperature is divided into low and high temperature regions with distinct activation energies. The principal effect of photoexcitation is to increase the carrier density. Films produced without the use of oxidants are relatively insensitive. The primary electronic properties of PbS films may be described in terms of sensitizing centers located 0.23 eV below the conduction band, and in terms of intergrain barriers which limit the effective mobility. The intergrain barriers play no essential role in the photoconductive process. PbS films deposited from baths containing no oxidant lack the sensitizing centers.

Download or read book Investigation of the Photoconductive Effect in Lead Sulfide Films Using Hall and Resistivity Measurements written by Joseph F. Woods and published by . This book was released on 1958 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Photoconductive Trapping Process in Lead Sulfide Films written by Norman E. Weston and published by . This book was released on 1952 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Photoconductivity of Lead Sulfide Films written by Mary Ann Johnke and published by . This book was released on 1963 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book THE PHYSICAL AND CHEMICAL COMPOSITION OF PHOTOCONDUCTIVE LEAD SULFIDE FILMS written by Moe Stanley Wasserman and published by . This book was released on 1955 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Photoconductive Effect in Lead Sulfide Films Using Hall and Resistivity Measurements a Dissertation Submitted by Joseph F Woods written by Joseph F. Woods and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Conduction Mechanism in Lead Sulfide Photoconductive Films written by Kermit Franklin Cuff and published by . This book was released on 1951 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introductory Guide to EC Competition Law and Practice written by Valentine Korah and published by . This book was released on 1994 with total page 2354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book THE CHEMICAL AND PHYSICAL STRUCTURES OF PBS FILMS IN RELATION TO PHOTOCONDUCTIVE SENSITTIVITY written by I. O. BROCKWAY, E. A. MEYERS, MOE S. WASSERMAN and published by . This book was released on 1953 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research on Photoconductive Films of the Lead Salts written by Richard L. Petritz and published by . This book was released on 1957 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1976 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Electronics and Electron Physics written by and published by Academic Press. This book was released on 1959-01-01 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Electronics and Electron Physics

Download or read book Fast Field Effect and Photoresponse Studies on Lead Sulfide Photoconductors written by Howard Earle Sorrows and published by . This book was released on 1958 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digest of Literature on Dielectrics written by and published by . This book was released on 1951 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Semiconducting Properties of Lead Sulfide Films written by Clifford Randall Schenk and published by . This book was released on 1962 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photoconductivity and Photoconductive Materials written by Safa O. Kasap and published by John Wiley & Sons. This book was released on 2022-06-28 with total page 919 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieses wichtige Referenzwerk behandelt die grundlegenden Konzepte der Photoleitfähigkeit und der photoleitenden Materialien. Mit Photoconductivity and Photoconductive Materials präsentiert Professor Kasap eine maßgebliche Zusammenstellung der wesentlichen Grundsätze der Photoleitfähigkeit und stellt eine Auswahl aktueller photoleitfähiger Materialien vor. Der erste Band des zweibändigen Werks beginnt mit einer Darstellung der grundlegenden Konzepte und Definitionen. Es folgt eine Charakterisierung der verschiedenen Techniken auf Grundlage von stationärer, transienter und modulierter Photoleitfähigkeit, u.a. der neuen Methode der Ladungsextraktion durch linear steigende Spannung (CELIV). Auch die Physik der Terahertz-Photoleitfähigkeit sowie die Grundlagen der organischen Halbleiter LSoI werden behandelt. Der zweite Band beginnt mit einem umfassenden Überblick über eine Vielzahl unterschiedlicher photoleitfähiger Materialien, wobei der Schwerpunkt auf einige der wichtigsten Photoleiter gelegt wird, darunter hydriertes amorphes Silizium, Cadmium-Quecksilber-Tellurid, verschiedene Röntgenphotoleiter, Diamantfilme, Metallhalogenidperowskite, Nanodrähte und Quantenpunkte. Auch die Anwendungen der photoleitenden Antenne werden erörtert. Das Werk, das zahlreiche Beiträge führender Autoren auf diesem Fachgebiet enthält, bietet den Leserinnen und Lesern außerdem: * Eine gründliche Einführung in die Charakterisierung von Halbleitern mit Hilfe von Techniken der Photoleitfähigkeit, insbesondere gleichmäßiger Beleuchtung und Phototräger-Gittertechniken * Eine umfassende Darstellung organischer Photoleiter mitsamt Informationen zu Photoerzeugung, Transport und Anwendungen im Druckbereich * Praktische Erörterungen der transienten Lichtleitfähigkeit im Flugzeitverfahren inklusive Experimentiertechniken und Interpretationshinweisen * Eine eingehende Betrachtung der transienten Photoleitfähigkeit organischer Halbleiterschichten und neuartiger Techniken der transienten Photoleitfähigkeit Photoconductivity and Photoconductive Materials ist nicht nur ein wichtiges Referenzwerk für Physiker in der Forschung, Materialwissenschaftler und Elektroingenieure, sondern auch ein unverzichtbares Nachschlagewerk für Doktoranden und Studierende höherer Semester, die sich mit dem Bereich der optoelektronischen Materialien beschäftigen, sowie für Forschende in der Industrie. * Ein umfassendes zweibändiges Werk mit Beiträgen führender Fachautoren, herausgegeben von einem angesehenen Forscher auf dem Gebiet der Photoleitfähigkeit