Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ian Campbell"'
Autor:
Sanjeev Singh, Aditya D. Mohite, Han Htoon, S. T. Picraux, Daniel E. Perea, Ian Campbell, Shadi A. Dayeh
Publikováno v:
Nano Letters. 12:1965-1971
VLS-grown semiconductor nanowires have emerged as a viable prospect for future solar-based energy applications. In this paper, we report highly efficient charge separation and collection across in situ doped Si p-n junction nanowires with a diameter1
Autor:
S. Tom Picraux, Ian Campbell, Binh-Minh Nguyen, Paul J. Schuele, Shadi A. Dayeh, David G. Evans, Jinkyoung Yoo
Publikováno v:
ACS nano. 9(5)
High-performance photovoltaic (PV) devices require strong light absorption, low reflection and efficient photogenerated carrier collection for high quantum efficiency. Previous optical studies of vertical wires arrays have revealed that extremely eff
Publikováno v:
Journal of Applied Physics. 93:4017-4022
We present device simulations for p-channel organic field effect transistors. The current conservation equation and Poisson’s equation are solved self consistently in two dimensions in the drift-diffusion approximation. We focus on modeling transis
Publikováno v:
Journal of Applied Physics. 91:4312-4318
Results of two-dimensional electrostatic modeling of organic field-effect transistors, focusing on the formation of the conductive channel, are reported. The effect on channel formation of the choice of the source and drain contact metal is investiga
Publikováno v:
Journal of Applied Physics. 87:1974-1982
Organic materials that have desirable luminescence properties, such as a favorable emission spectrum and high luminescence efficiency, are not necessarily suitable for single layer organic light-emitting diodes (LEDs) because the material may have un
Publikováno v:
Physical Review B. 59:R2482-R2485
Electroabsorption (EA) measurements are used to determine the electric fields in polymer light-emitting electrochemical cells (LEC's). The EA signals are measured as a function of the dc bias and are found to increase abruptly above a threshold volta
Publikováno v:
Journal of Applied Physics. 84:833-842
We present calculations of single layer organic light emitting diode (LED) characteristics using a device model which includes charge injection, transport, recombination, and space charge effects in the organic material. Contact limited and ohmic con
Autor:
B. K. Crone, Ian Campbell
Publikováno v:
Advanced Materials. 18:77-79
Publikováno v:
Journal of Applied Physics. 82:6319-6325
We present a unified device model for single layer organic light emitting diodes (LEDs) which includes charge injection, transport, and space charge effects in the organic material. The model can describe both injection limited and space charge limit
Autor:
Darryl L. Smith, John P. Ferraris, Michael D. Joswick, T.W. Hagler, Ian Campbell, Ian D. Parker
Publikováno v:
Polymers for Advanced Technologies. 8:417-423
A widely applicable electroabsorption technique to measure internal electric fields in organic light-emitting diodes is presented. The technique exploits the change in the a.c. electroabsorption response in the presence of a d.c. electric field. The