Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy

Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy
Author: Liu, Xin
Publisher: KIT Scientific Publishing
Total Pages: 248
Release: 2015-06-19
Genre: Technology (General)
ISBN: 3731503700

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This work presents the application of organic semiconductor distributed feedback laser as free-space excitation source in Raman spectroscopy. Surface-enhanced Raman scattering effect is exploited to improve the detection sensitivity. The SERS conditionis achiedved by using substrates consisting of gold-coated polymeric nanopillar arrays. The organic-laser-excited SERS measurements are applied to verify the concentration variation of biomolecule adenosine in aqueous solutions.

Raman Scattering on Emerging Semiconductors and Oxides

Raman Scattering on Emerging Semiconductors and Oxides
Author: Zhe Feng
Publisher: CRC Press
Total Pages: 172
Release: 2024-09-16
Genre: Science
ISBN: 1040105793

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Raman Scattering on Emerging Semiconductors and Oxides presents Raman scattering studies. It describes the key fundamental elements in applying Raman spectroscopies to various semiconductors and oxides without complicated and deep Raman theories. Across nine chapters, it covers: • SiC and IV-IV semiconductors, • III-GaN and nitride semiconductors, • III-V and II-VI semiconductors, • ZnO-based and GaO-based semiconducting oxides, • Graphene, ferroelectric oxides, and other emerging materials, • Wide-bandgap semiconductors of SiC, GaN, and ZnO, and • Ultra-wide gap semiconductors of AlN, Ga2O3, and graphene. Key achievements from the author and collaborators in the above fields are referred to and cited with typical Raman spectral graphs and analyses. Written for engineers, scientists, and academics, this comprehensive book will be fundamental for newcomers in Raman spectroscopy. Zhe Chuan Feng has had an impressive career spanning many years of important work in engineering and tech, including as a professor at the Graduate Institute of Photonics & Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei; establishing the Science Exploring Lab; joining Kennesaw State University as an adjunct professor, part-time; and at the Department of Electrical and Computer Engineering, Southern Polytechnic College of Engineering and Engineering Technology. Currently, he is focusing on materials research for LED, III-nitrides, SiC, ZnO, other semiconductors/oxides, and nanostructures and has devoted time to materials research and growth of III-V and II-VI compounds, LED, III nitrides, SiC, ZnO, GaO, and other semiconductors/oxides. Professor Feng has also edited and published multiple review books in his field, alongside authoring scientific journal papers and conference/proceeding papers. He has organized symposiums and been an invited speaker at different international conferences and universities. He has also served as a guest editor for special journal issues.

Sol-Gel Spin Coating Growth Of Gallium Nitride Thin Films A Simple, Safe, and Cheap Approach (Penerbit USM)

Sol-Gel Spin Coating Growth Of Gallium Nitride Thin Films A Simple, Safe, and Cheap Approach (Penerbit USM)
Author: Fong Chee Yong
Publisher: Penerbit USM
Total Pages: 127
Release: 2019
Genre: Science
ISBN: 9674612947

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Wide direct band gap gallium nitride (GaN) semiconductor has received significant attention as an ideal material for various applications in the optoelectronic devices. One major use of GaN is the development of energy-efficient solid state light-emitting diodes. Currently, most commercially available GaN semiconductor are produced through advanced deposition techniques which involve sophisticated technologies and are relatively expensive and complicated to setup. As an alternative, the sol-gel spin coating method, which is relatively simpler, cheaper, safer, and more scalable was proposed. In this book, the process route and recipe for producing highly c-oriented crystalline GaN thin films via the sol-gel spin coating approach were described in detail. Some insights into the factors affecting the surface morphology as well as structural and optical properties of the deposited films were presented. Eventually, this book could inspire further studies into the development of low-cost GaN thin films.

Advanced Optical Spectroscopy Techniques for Semiconductors

Advanced Optical Spectroscopy Techniques for Semiconductors
Author: Masanobu Yoshikawa
Publisher: Springer Nature
Total Pages: 227
Release: 2023-03-23
Genre: Technology & Engineering
ISBN: 3031197224

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This book focuses on advanced optical spectroscopy techniques for the characterization of cutting-edge semiconductor materials. It covers a wide range of techniques such as Raman, infrared, photoluminescence, and cathodoluminescence (CL) spectroscopy, including an introduction to their physical fundamentals and best operating principles. Aimed at professionals working in the research and development of semiconductors and semiconductor materials, this book looks at a broad class of materials such as silicon and silicon dioxide, nano-diamond thin films, quantum dots, and gallium oxide. In addition to the spectroscopic techniques covered, this book features a chapter devoted to the use of a scanning electron transmission microscope as an excitation source for CL spectroscopy. Written by a practicing industry expert in the field, this book is an ideal source of reference and best-practices guide for physicists, as well as materials scientists and engineers involved in the area of spectroscopy of semiconductor materials. Further, this book introduces the cutting-edge spectroscopy such as optical photothermal IR and Raman spectroscopy or terahertz time-domain spectroscopy (THz-TDS) etc.

Micro-Raman Analysis of Dielectric Thin Films

Micro-Raman Analysis of Dielectric Thin Films
Author: A. Schmid
Publisher:
Total Pages: 14
Release: 1987
Genre:
ISBN:

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The long-term motivation of our program Micro-Raman-Analysis of Dielectric Thin Films is the acquisition of an understanding of stress and the role of defects in the growth of optical performance of defects in the growth and optical performance of dielectric thin films. By dielectric films we mearn films comprising materials that are suitable for high-power laser applications in the visible and near UN. Materials with intrinsic band gaps exceeding 3.5 eV are of interest here. Before the initiation of this program there was considerable research activity in the area of narrow band gap materials, mostly semiconductors, in which Raman spectroscopy answered questions of film morphology, doping levels and carrier dynamics.

Raman Spectroscopy and Applications

Raman Spectroscopy and Applications
Author: Khan Maaz
Publisher: BoD – Books on Demand
Total Pages: 366
Release: 2017-02-15
Genre: Science
ISBN: 9535129074

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Raman spectroscopy has a number of applications in various fields including material science, physics, chemistry, biology, geology, and medicine. This book illustrates necessary insight and guidance in the field of Raman spectroscopy with detailed figures and explanations. This presents deep understanding of new techniques from basic introduction to the advance level for scientists and engineers. The chapters cover all major aspects of Raman spectroscopy and its application in material characterization with special emphasis on both the theoretical and experimental aspects. This book is aimed to provide solid foundation of Raman spectroscopy to the students, scientists, and engineers working in various fields as mentioned above.

Journal of Research of the National Institute of Standards and Technology

Journal of Research of the National Institute of Standards and Technology
Author:
Publisher:
Total Pages: 904
Release: 1994
Genre: Chemistry
ISBN:

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Reports NIST research and development in the physical and engineering sciences in which the Institute is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Emphasis on measurement methodology and the basic technology underlying standardization.

Handbook of Thin Films, Five-Volume Set

Handbook of Thin Films, Five-Volume Set
Author: Hari Singh Nalwa
Publisher: Academic Press
Total Pages: 661
Release: 2001-10-29
Genre: Science
ISBN: 0125129084

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This five-volume handbook focuses on processing techniques, characterization methods, and physical properties of thin films (thin layers of insulating, conducting, or semiconductor material). The editor has composed five separate, thematic volumes on thin films of metals, semimetals, glasses, ceramics, alloys, organics, diamonds, graphites, porous materials, noncrystalline solids, supramolecules, polymers, copolymers, biopolymers, composites, blends, activated carbons, intermetallics, chalcogenides, dyes, pigments, nanostructured materials, biomaterials, inorganic/polymer composites, organoceramics, metallocenes, disordered systems, liquid crystals, quasicrystals, and layered structures. Thin films is a field of the utmost importance in today's materials science, electrical engineering and applied solid state physics; with both research and industrial applications in microelectronics, computer manufacturing, and physical devices. Advanced, high-performance computers, high-definition TV, digital camcorders, sensitive broadband imaging systems, flat-panel displays, robotic systems, and medical electronics and diagnostics are but a few examples of miniaturized device technologies that depend the utilization of thin film materials. The Handbook of Thin Films Materials is a comprehensive reference focusing on processing techniques, characterization methods, and physical properties of these thin film materials.