Now showing items 1-10 of 134
Thickness dependence, in situ measurements, and morphology of thermally controlled interdiffusion in polymer-C-60 photovoltaic devices
(American Physical Society, 2004-04-28)
A series of detailed studies is presented in which heat-induced interdiffusion is used to create a gradient bulk-heterojunction of 2-methoxy-5-(2(')-ethylhexyloxy)-1,4-phenylenevinylene (MEH-PPV) copolymer and C-60. Starting ...
Millisecond switching in solid state electrochromic polymer devices fabricated from ionic self-assembled multilayers
(AIP Publishing, 2008-01-01)
The electrochromic switching times of solid state conducting polymer devices fabricated by the ionic self-assembled multilayer method has been investigated. The devices were composed of bilayers of poly(3,4-ethylenedioxy ...
Evidence of decoupled lattice distortion and ferroelectric polarization in the relaxor system PMN-xPT
(American Physical Society, 2003-12-30)
We report high q-resolution neutron scattering data on PMN-xPT single crystals with x=20% and 27%. No rhombohedral distortion occurs in the 20PT sample for temperatures as low as 50 K. On the other hand, the 27PT sample ...
Synthesis kinetics of CdSe quantum dots in trioctylphosphine oxide and in stearic acid
(AIP Publishing, 2005-04-01)
A diffusion-barrier model described the early evolution of size-dependent photoluminescence emission from CdSe quantum dots formed by organometallic synthesis. Emission peak widths, emission redshift rates, and nanocrystal ...
Layer-by-layer self-assembled conductor network composites in ionic polymer metal composite actuators with high strain response
(AIP Publishing, 2009-07-01)
We investigate the electromechanical response of conductor network composite (CNC) fabricated by the layer-by-layer (LbL) self-assembly method. The process makes it possible for CNCs to be fabricated at submicron thickness ...
Transient pulses from exploding primordial black holes as a signature of an extra dimension
(Iop Publishing Ltd, 2008-11-01)
Search for charged current coherent pion production on carbon in a few-GeV neutrino beam
(Amer Physical Soc, 2008-12-01)
The SciBooNE Collaboration has performed a search for charged current coherent pion production from muon neutrinos scattering on carbon, νυ <sup>12</sup>C &8594; μ <sup>12</sup>Cπ ⁺, with two ...
Fluctuations and correlations in lattice models for predator-prey interaction
(American Physical Soc, 2006-04-01)
Search for coherent charged pion production in neutrino-carbon interactions
(Amer Physical Soc, 2005-12-16)
We report the result from a search for charged-current coherent pion production induced by muon neutrinos with a mean energy of 1.3 GeV. The data are collected with a fully active scintillator detector in the K2K long-baseline ...
Mass, entropy, and holography in asymptotically de Sitter spaces
(American Physical Society, 2002-06-15)
We propose a novel prescription for computing the boundary stress tensor and charges of asymptotically de Sitter (dS) spacetimes from data at early or late time infinity. If there is a holographic dual to dS spaces, defined ...