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 28
... injected carrier concentration decays rapidly in moving away from the injecting electrode. The injected carrier profile creates a strong electric field. The current that flows is determined by this space charge field and is known as the ...
... injected carrier concentration decays rapidly in moving away from the injecting electrode. The injected carrier profile creates a strong electric field. The current that flows is determined by this space charge field and is known as the ...
Page 29
... by the flow of holes and concentration of electrons is negligible. The treatment can be easily extended to the electron only samples. 0.01 | 0.01 0.1 1 Injection barrier (eV) FIG. 3.16. Optical and Transport Properties 29.
... by the flow of holes and concentration of electrons is negligible. The treatment can be easily extended to the electron only samples. 0.01 | 0.01 0.1 1 Injection barrier (eV) FIG. 3.16. Optical and Transport Properties 29.
Page 32
... injected carriers are trapped. A given applied voltage can support only a fixed quantity of total charge in the sample. Therefore the injected free carrier density is considerably reduced in the presence of traps. Both the trapped and ...
... injected carriers are trapped. A given applied voltage can support only a fixed quantity of total charge in the sample. Therefore the injected free carrier density is considerably reduced in the presence of traps. Both the trapped and ...
Page 33
... injected carriers remain trapped and the current by injection remains small until all the traps are filled. As the traps are nearly filled the SCLC begins to flow. It increases rapidly and as the trap-filled limit is reached, it follows ...
... injected carriers remain trapped and the current by injection remains small until all the traps are filled. As the traps are nearly filled the SCLC begins to flow. It increases rapidly and as the trap-filled limit is reached, it follows ...
Page 34
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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 |
Other editions - View all
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