Conducting Organic Materials and DevicesConducting polymers were discovered in 1970s in Japan. Since this discovery, there has been a steady flow of new ideas, new understanding, new conducing polymer (organics) structures and devices with enhanced performance. Several breakthroughs have been made in the design and fabrication technology of the organic devices. Almost all properties, mechanical, electrical, and optical, are important in organics. This book describes the recent advances in these organic materials and devices. |
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Page v
... BAND STRUCTURE OE t-PA 2.3. THE SOLITONS AND THE POLARONS 2.3.1. The Solitons 2.3.2. The Polarons 2.4. TRANSPORT PROPERTIES 2.4.1. Mobility in Selected Polymers 2.4.2. Conductivity and Susceptibility Chapter 3 Optical and Transport ...
... BAND STRUCTURE OE t-PA 2.3. THE SOLITONS AND THE POLARONS 2.3.1. The Solitons 2.3.2. The Polarons 2.4. TRANSPORT PROPERTIES 2.4.1. Mobility in Selected Polymers 2.4.2. Conductivity and Susceptibility Chapter 3 Optical and Transport ...
Page 9
... Band structure of t-PA In the trans-polyacetylene (t-PA) the neighboring sp2 hybridized orbitals pointing at each other between two C atoms form bonding and antibonding states with a separation of about 20 eV. The bonding energy levels ...
... Band structure of t-PA In the trans-polyacetylene (t-PA) the neighboring sp2 hybridized orbitals pointing at each other between two C atoms form bonding and antibonding states with a separation of about 20 eV. The bonding energy levels ...
Page 10
... band i _6- | : 0 Tt/Za Tt/a Wavenumber (d) H Two degenerate states of trans-Polyacetylene I (t-PA) H x H x 3.0 4|“ 2.0 E 0 V) O S 1.0 as Energy (eV) FIG. 2.2. (a) The pZ orbitals of undimerized t-PA chain, (b) the orbitals after ...
... band i _6- | : 0 Tt/Za Tt/a Wavenumber (d) H Two degenerate states of trans-Polyacetylene I (t-PA) H x H x 3.0 4|“ 2.0 E 0 V) O S 1.0 as Energy (eV) FIG. 2.2. (a) The pZ orbitals of undimerized t-PA chain, (b) the orbitals after ...
Page 13
... band as is the case in a conventional semiconductor. It deforms the polymer chain as shown in Fig. 2.4. The actual H Fl' 5H ...... "El ...... ..... .El ...... ..... ..... H H I I -. '-. I e' c I \e I'-, .'~. '\ I I ...
... band as is the case in a conventional semiconductor. It deforms the polymer chain as shown in Fig. 2.4. The actual H Fl' 5H ...... "El ...... ..... .El ...... ..... ..... H H I I -. '-. I e' c I \e I'-, .'~. '\ I I ...
Page 14
... band edge. The electron along with the deformed configuration of the chain is the negatively charged polaron P_. An analogous configuration exists for a positive polaron in a polymer doped with p-type impurities. The positive polaron is ...
... band edge. The electron along with the deformed configuration of the chain is the negatively charged polaron P_. An analogous configuration exists for a positive polaron in a polymer doped with p-type impurities. The positive polaron is ...
Contents
1 | |
7 | |
23 | |
Chapter 4 Light Emitting Diodes and Lasers | 67 |
Chapter 5 Solar Cells | 95 |
Chapter 6 Transistors | 123 |
Bibliography | 147 |
Index | 157 |
Contents of Volumes in this Series | 167 |
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Conducting Organic Materials and Devices Suresh C. Jain,M. Willander,V. Kumar No preview available - 2007 |
Common terms and phrases
absorption acceptor active layer Alq3 amorphous Appl Applications applied voltage band bandgap bipolaron blue calculated carrier density cathode characteristics charge carriers cm_3 color conducting polymers configuration curves dark current Defects devices dopant doped electric field electron emission emitter energy transfer Epitaxy equation excitons experimental data fabricated field effect figure filled first fit flow function gate voltage heterojunction hole III—V Compounds illuminated increases injection laser Lett light emitting diodes measured MEH-PPV metal midgap mobility model molecular molecules obtained OFETs ohmic OLEDs open circuit voltage organic materials organic solar cells parameters pentacene photovoltaic Phys plots polyacetylene quantum efficiency sample Schottky barrier SCLC short circuit current shown in Fig shows Silicon solid solitons space charge space charge limited spectra spin coating structure substrate sufficient superposition principle t-PA theory thickness thin film transistor transistors transport traps V2 law values vinylene white light