Morphology and charge transport in polymer organic semiconductor field effect transistors

... oxygen and water molecules into the film more difficult, hence minimizing the doping of the polymer at the semiconductor- insulator interface 1.3 Nature of charge carriers The intrinsic motion of charge ... limited by the interchain transport of charge carriers instead of the relatively fast intrachain transport in the absence of backbone imperfections The morphology of the...

Ngày tải lên: 10/09/2015, 08:34

... anisotropic transport along the polymer chain and in π-stacking direction could be modeled as hopping in a cross lattice in αR space with αR defined as the interchain coupling strength This transport ... existing hopping transport models to compare the charge transport behavior in 2D and 3D In Chapter 3, we develop an “universal“ twodimensional charge transport model...

Ngày tải lên: 10/09/2015, 09:05

... characterization of Schottky contacts on n -GaN 64 Rh -based Schottky contacts on n -GaN 66 3.2 3.2.1 Electrical properties of Rh -based Schottky contacts on n -GaN 66 3.2.2 Role of Ni in Rh -based Schottky contacts ... INVESTIGATION ON PERFORMANCE AND RELIABILITY IMPROVEMENTS OF GAN- BASED HETEROSTRUCTURE FIELD EFFECT TRANSISTORS TIAN FENG (M Eng.,...

Ngày tải lên: 11/09/2015, 10:05

... for spin- up and spin- down charges The spin polarization in ferromagnetic material can be described as   (2.2) and the net spin current is  Since the net charge current is , the spin- up and spin ... BI-LAYER GRAPHENE7 1  4.1  INTRODUCTION 71  4.2  SPIN TRANSPORT IN EXFOLIATED SINGLE LAYER AND BI-LAYER GRAPHENE 72  4.3  SPIN TRANSPORT IN CVD SINGLE LAYER...

Ngày tải lên: 09/09/2015, 11:18

... NEXAFS study of the dichroism of the C1s→π* transition of the frontier polymer chains, and of the spectrum, for both the top and bottom interfaces of rrP3HT thin films deposited by sc, dc and ijp ... number of energy levels The energy gap determines the electronic and electrical properties of the conducting polymers Hence, control of the HOMO-LUMO gap and spe...

Ngày tải lên: 11/09/2015, 10:15

... difficult or labor intensive (such as resin transfer molding) in terms of resin infusion A more attractive way of producing effective, 3D laminates and reducing the impact weakness and delamination is ... with no interaction between the clay galleries and the polymer, (b) intercalated nanocomposites, where the silicate is well-dispersed in a polymer matrix with polymer chains i...

Ngày tải lên: 02/04/2014, 16:28

... mathematical modeling, and numerical methods His present interests are in understanding and predicting the transport and fate of sediments and contaminants in surface and ground waters and the effects ... xv Chapter 1. 1 1. 2 1. 3 1. 4 Examples of Contaminated Sediment Sites 1. 1 .1 Hudson River 1. 1.2 Lower Fox River 1. 1.3 Passaic River/Newark Bay 1. 1.4...

Ngày tải lên: 18/06/2014, 22:20

... Sediment Components Humus Clay Kaolinite Orthoclase Microcline Quartz Albite Flint Calcite 1.3–1.5 2. 2 2. 6 2. 2 2. 6 2. 5 2. 6 2. 5 2. 6 2. 5 2. 8 2. 6 2. 7 2. 6 2. 7 2. 6 2. 8 Anorthite Dolomite Muscovite Biotite ... 20 09 by Taylor & Francis Group, LLC d2 (2. 6) 32 Sediment and Contaminant Transport in Surface Waters This is a convenient and easy-to-remember eq...

Ngày tải lên: 18/06/2014, 22:20

... Dam 13 5-7 12 6-7 (a) D r m e dge For wbri o 10 8-7 Tr am 10 4-2 10 4-7 10 7 -3 10 9-5 108 1/ 2-5 10 3- 1 er m For 0 0.5 O am yD Cit 7 9-8 tsego 7 9-7 O r am 7 7-8 -b me ll D 7 9-5 For inwe 7 9-1 Pla 7 7 -3 -1 6 7-5 ... inwe 7 9-1 Pla 7 7 -3 -1 6 7-5 6 1-1 6 7-8 6 5-5 Otsego 7 7 -3 -2 7 7 -3 -3 6 7-2 6 5-5 -6 6 6-7 9 4-6 1/2 9 3- 9 m 9...

Ngày tải lên: 18/06/2014, 22:20

... efficient and suitable for use in calculating sediment and contaminant transport in surface waters 4. 4.3 A VERY SIMPLE MODEL For exploratory purposes and as a first approximation in transport ... for d and Ts shown in Figures 4. 10 and 4. 11 (when fluid shear is dominant) and in Figures 4. 14 and 4. 15 (when differential settling is dominant) It also...

Ngày tải lên: 18/06/2014, 22:20

... 5. 20(a) and (b) In the Western Basin, the significant wave heights (Figure 5. 20(a)) range up to 1 .5 m, and the wave periods WIND N 1.0 0 .5 0 .5 0 .5 1 1 .5 0 .5 0 .5 0 .5 0 .5 1 .5 0 .5 0 .5 1 .5 10 20 ... dz (5. 53) v dz (5. 54) ho V ho where u and v are the velocities in the x- and y-directions, respectively, and z is the vertical coordinate Equations 5. 50...

Ngày tải lên: 18/06/2014, 22:20

... 262 Sediment and Contaminant Transport in Surface Waters west wind (the dominant wind throughout the year), a northeast wind (the dominant direction during large storms), a southeast wind, and ... Group, LLC 220 Sediment and Contaminant Transport in Surface Waters usually decreases with sediment depth and time As indicated in Section 4 .6, the presence and...

Ngày tải lên: 18/06/2014, 22:20

... data and computer time Because of this, a general calculation of the transport © 2009 by Taylor & Francis Group, LLC 298 Sediment and Contaminant Transport in Surface Waters of contaminants in surface ... 280 Sediment and Contaminant Transport in Surface Waters the steady-state partitioning of an HOC between sedimentary particles and water are discussed s...

Ngày tải lên: 18/06/2014, 22:20

... LLC 316 Sediment and Contaminant Transport in Surface Waters A simple and idealized problem of contaminant release and transport during environmental dredging is discussed in Section 8. 6; the ... feeding and is similar to that shown in Figure 8. 13 © 2009 by Taylor & Francis Group, LLC 3 48 Sediment and Contaminant Transport in Surface Waters The...

Ngày tải lên: 18/06/2014, 22:20

... Al concentrations in a solution of 0.025 M zinc nitrate [Zn(NO3)2·6H2O] and hexamethylenetetramine (HMT), we obtained ultrathin flake-like AZO nanostructures of high s and distinct morphology Moreover, ... 0.337, and a PCE of 1.04% With doping and mM Al concentrations, the J SC of devices increases to 10.26 and 11.08 mA cm -2 , and the PCE increases to 1.26% and 1....

Ngày tải lên: 20/06/2014, 22:20