SCLC model

Schottky barrier, 16-19 Schulz, 6-2, 6-6 SCL regime, 19-3 SCLC model, 16-9, 16-639 SCLC, 16-9, 16-19 Screw direction, 3-5-3-7, 3-8, 3-10 SDWs-(TMTSF)2PFg, 16-14-16-15 Secondary battery, 8-73-8-77 Secondary dopants for PEDT PSS, 10-9 Secondary growth, 7-7-7-11 Selected area electron diffraction, 17-32 Self-assembled monolayer (SAM), 8-55-8-56,... 

Temperature-dependent conductivity data of q-6T are also inconsistent so far. Vaterlein et al. [326] find an exponential behavior with temperature T (a — gq exp(o r)) for undoped and doped o -6T as well as for EC6T even at low temperatures whereas an Arrhenius fit (cr = uo exp(—with Ep, as activation energy) reveals a large error. This exponential relation does neither fit into the above-mentioned model of hopping conduction nor in the SCLC model with shallow traps. For SCLC from equation 3 and... 

In conclusion we have shown that the junction current of an organic solar cell measured in the dark cannot be used to interpret data obtained with illuminated solar cells. The current changes from SCLC to diffusion and recombination current when the cell is illuminated. This has allowed us to provide a physical basis for the use of a model, which uses the diode equation for the illuminated solar cells. The model is very successful in interpreting the output characteristics of the illuminated organic solar cells by Brabec and confirmed by us. The true junction dark current (diffusion and recombination current) determined by us remains more than the output current of the illuminated solar cell. Now the two currents do not intersect. This also explains why points of inflexion observed in the current measured in the dark disappear in the output current of the illuminated cell. 

SCLC given by Equation (8.50). The analysis of Many and Rakavy (1962) shows that the peak current is approximately 1.2 times the SCLC and that the maximum occurs at approximately 0.8 times the carrier transit time. Goldie (1999) has incorporated the experimentally observed Poole-Frenkel field dependence into this model and finds a range of possible numerical factors for the current maximum of from 1-1.2 times the SCLC and 0.7-0.8 times the transit time. Experimental data come close to these model profiles, see Abkowitz et al. (1994), Goldie (1999). 

The carrier mobility in the mixed CuPcC o films has been obtained by modeling the current density-voltage (j-V) characteristics for hole- and electron-only devices using the space-charge-limited current (SCLC) theory (Pope and Swenberg, 1999 Rand et al., 2005), viz. ... 

TOP, mobility obtained from time-of-flight measurements SCLC, mobility obtained from application of space-charge limited current models to I(V) data E, electric field strength. 

A third alternative has been the use of human tumor eell lines related to PNEC/NEB, namely, small-ceU lung carcinoma (SCLC). Although more than 60 SCLC cell lines have been described and partially characterized (68,69), relatively few are being used as models for PNEC/NEB cell function. More detailed analysis of SCLC cell lines revealed that most retained multiple phenotypie and biochemical... 

The observation that K+ currents recorded from NEB cells of OD mouse lung are insensitive to acute hypoxia (75) is at shght odds with data from H146 cells that suggest that human SCLC cells express a second, but conveiging, 02-sensing system (84). Thus, in the H-146 cell model maximal inhibitory concentrations of either of two structurally unrelated inhibitors of NADPH oxidase activity, diphenylene iodonium (DPI) and phenylarsine oxide (PAO), are unable to abolish completely the hypoxic depression of K+ currents (84). Whether the quantitative contributions of this oxidase versus an additional sensory pathway (which may be different in neonatal rabbit NEB cells and the human tumor cell model) are a result of species differences or cell type remains to be investigated. 

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