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Zinc Oxide Materials for Electronic and Optoelectronic Device Applications
eBook Publisher: John Wiley & Sons
Imprint: Wiley
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Zinc Oxide (ZnO) powder has been widely used as a white paint pigment and industrial processing chemical for nearly 150 years. However, following a rediscovery of ZnO and its potential applications in the 1950s, science and industry alike began to realize that ZnO had many interesting novel properties that were worthy of further investigation.
ZnO is a leading candidate for the next generation of electronics, and its biocompatibility makes it viable for medical devices. This book covers recent advances including crystal growth, processing and doping and also discusses the problems and issues that seem to be impeding the commercialization of devices.
Topics include:
Energy band structure and spintronics Fundamental optical and electronic properties Electronic contacts of ZnO Growth of ZnO crystals and substrates Ultraviolet photodetectors ZnO quantum wellsZinc Oxide Materials for Electronic and Optoelectronic Device Applications is ideal for university, government, and industrial research and development laboratories, particularly those engaged in ZnO and related materials research.
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| Title of Technology eBook: Zinc Oxide Materials for Electronic and Optoelectronic Device Applications | |
| Release Date: 03-23-2011 | |
| Publisher: Wiley |
This eBook download is available in the following formats:
| Parent title | Zinc Oxide Materials for Electronic... |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9781119991045 |
| File size | 8478 |
| Security | n/a |
| Printing | Not allowed |
| Copying | Not allowed |
| Read aloud | No Sys requirements Download reader |
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| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
Zinc Oxide Materials for Electronic and Optoelectronic Device Applications
Chapter One
Fundamental Properties of ZnO
T. C. Collins and R. J. Hauenstein Department of Physics, Oklahoma State University, Stillwater, OK, USA
1.1 Introduction
1.1.1 Overview
Wurtzitic ZnO is a wide band gap semiconductor (Eg = 3.437 eV at 2 K) that has many applications, including piezoelectric transducers, varistors, phosphors, and transparent conduction films. Most of these applications only require polycrystalline materials; however, recent successes in producing large-area single crystals make possible the production of blue and UV light emitters and high temperature, high power transistors. The main advantage of ZnO as a light emitter is its large exciton binding energy (Eb = 60 meV). This binding energy is three times larger than that of the 20 meV exciton of GaN, which permits excitonic recombination to dominate in ZnO at room temperature (and even above). Excitonic recombination is preferable because the exciton, being an already bound system, radiatively recombines with high efficiency without requiring traps to localize carriers, as in the case in radiative recombination of electron–hole plasmas. Secondly, the deeper exciton of ZnO is more stable against field ionization due to piezoelectrically induced fields. Such piezoelectric effects are expected to increase with increasing dopant concentration for both ZnO and GaN.
For electronic applications, the attractiveness of ZnO lies in having high breakdown strength and high saturation velocity. ZnO also affords superior radiation hardness compared with other common semiconductor materials, such as Si, G
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