Filling the gap in the literature currently available, this book presents an overview of our knowledge of the physics behind organic. The field of organic electronics has seen a steady growth over the last 15 years. At the same time, our scientific understanding of how to. Contents. List of Contributors XV. Introduction to the Physics of Organic Semiconductors 1. W. Brütting. 1. History 1. 2. Materials 2. 3. Basic Properties of Organic.
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Physics Colloquium 10/07/, Dr. Alex Zakhidov. Physics of Organic Semiconductor Devices: Materials,. Fundamentals, Technologies and Applications. Request PDF on ResearchGate | Physics of Organic Semiconductors, Second Edition | In this review, we discuss recent advances in our understanding of. Request PDF on ResearchGate | Physics of Organic Semiconductors | We present a summary of recent studies of the interface properties of.
PACS: Bt; Hp Keywords: Organic semiconductors; Conjugated polymers; Digital radiography 1. Introduction imaging . They generally consist of an array of photodiodes addressed by an array of TFTs.
A phosphor Semiconductor devices fabricated from polymers or- screen or scintillator is coupled to the array of photodiodes ganic semiconductors are emerging as an exciting alter- to convert X-ray photons into visible light. Conjugated polymers The FPI arrays are necessarily large, typically measuring have previously been used to make photovoltaic devices greater than cm2 in area.
Producing inorganic [1,2], photodiodes, light-emitting diodes  and thin-film semiconductor devices on this scale is problematic and transistors TFTs . Currently, most FPIs are fabricated from One of the most important features of organic semi- amorphous silicon a-Si.
Their performance is good and conductors is ease of fabrication. Most can be solution they offer many advantages over film. However, uptake has processed, meaning that they can be deposited using been slowed by their high cost.
Potentially, they could lead to a significant ment for film-screen combinations in medical X-ray reduction in the cost of FPIs, especially in FPIs with very large areas. In addition, polymers could improve the imaging E-mail address: jblakes1 medphys. Blakesley et al.
Polymer FPIs could even be fabricated on X-ray Required semiconductor parameters for radiographic imaging transparent plastic substrates, allowing back illumination Basic requirement Competitive imager and panel flexibility. Our collaboration aims to explore the feasibility of Bias voltage X0. The basic requirement is defined as the necessary to determine the requirements of the semicon- parameters required to make a detector that has zero- ductor materials. Using a model it is possible to optimize frequency DQE of greater than 0.
This is a requirement that has been chosen to system before beginning to fabricate a prototype. The competitive requirement is defined as the set of parameters 2. Modeling method that produce a detector that is mainly limited by external factors, such as source, ADC and amplifier noise.
Assum- We have implemented a cascaded systems model, similar ing this requirement can be met, the resulting FPI would to that used by Siewerdsen et al. The imaging process is perform competitively with current commercial products. The 1. Absorption of X-ray photons in scintillator mean pixel exposure was assumed to range from 0.
Propagation of optical photons to photodiodes 70 kV tungsten source filtered by 25 mm of aluminum to 4. Conversion of optical photons to charges simulate the X-ray absorption of a patient.
Charge read-out and addition of electronic noise. Some of the important requirements are shown Table 1. Note that the requirements are interdependent.
Exceeding To simulate stages 1—3, a Monte-Carlo model is used, one requirement might lead to the relaxation of another similar to that used by Kausch et al. X-ray absorption requirement. Exceeding one requirement might lead to the relaxation of To simulate the scatter of optical photons from the another requirement. Burn, Shih-Chun Lo and I.
Levell, S. Zhang, W. Lai, S. Lo, P. Burn and I. Hsu, Chunhui Duan, Ebinazar B. Namdas, Andrea Gutacker, Jonathan D. Bazan, Ifor D.
Samuel and Alan J. Burn and Ifor D. Findlay, Anto R. Inigo, Stuart A. Thomson, Peter J. Skabara and Ifor D. Samuel Journal of Materials Chemistry, 22, 28, Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules Neil A. Montgomery, Gordon J. Kanibolotsky, Peter J. Skabara, Ian Galbraith, Graham A.
Wright, Alexander L. Skabara, Simon J. If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account. If the address matches an existing account you will receive an email with instructions to retrieve your username.
Skip to Main Content. Physics of Organic Semiconductors Editor s: First published: Print ISBN: About this book Filling the gap in the literature currently available, this book presents an overview of our knowledge of the physics behind organic semiconductor devices. Contributions from 18 international research groups cover various aspects of this field, ranging from the growth of organic layers and crystals, their electronic properties at interfaces, their photophysics and electrical transport properties to the application of these materials in such different devices as organic field-effect transistors, photovoltaic cells and organic light-emitting diodes.