Zobrazeno 1 - 10
of 62
pro vyhledávání: '"L. Bakueva"'
Publikováno v:
Journal of Physics D: Applied Physics. 39:441-448
The effect of ghosting (radiation-induced changes in sensitivity) in amorphous selenium (a-Se) is a serious hurdle to enhancing parameters of flat-panel imagers on the base of this material. We present the results of experimental investigation of gho
Publikováno v:
Medical Physics. 32:3160-3177
Amorphous selenium (a-Se) based real-time flat-panel imagers (FPIs) are finding their way into the digital radiology department because they offer the practical advantages of digital x-ray imaging combined with an image quality that equals or outperf
Publikováno v:
physica status solidi (b). 242:1183-1186
Composite systems containing semiconductor nanocrystals (NCs) embedded into a conducting polymer matrix have a number of key distinctions from semiconductor quantum dot heterostructures. Low electron affinity of conducting polymers results in a type-
Autor:
Eugenia Kumacheva, Sergei Musikhin, L. Bakueva, Ivan Gorelikov, Edward H. Sargent, Xu Sheng Zhao
Publikováno v:
Advanced Materials. 16:926-929
Publikováno v:
Surface Science. :1051-1055
We report results of experimental investigations into the luminescent properties of conjugated polymers in which are embedded dielectric nanocrystals. In poly( p -phenylene vinylene), embedding nanocrystals results in a blue shift and broadening of l
Publikováno v:
Surface Science. :828-831
Nanocomposites consisting of GaSb nanocrystals in conducting polymer matrices were fabricated and investigated. Optical absorption and electrical properties of the samples were analyzed. Electroluminescence with a spectral maximum near 1600 nm was ob
Publikováno v:
Synthetic Metals. 126:207-211
Stationary and time-resolved luminescent characteristics were investigated in a large number of poly( p -phenylene vinylene) (PPV) samples including as-grown films on different substrates, those subjected to thermal curing and vapor-phase iodine dopi
Publikováno v:
Journal of Materials Science: Materials in Electronics. 12:21-25
We report diffusion doping of the semiconducting polymer poly (ferrocenylsilanes), or PFS. We have obtained a steady-state conductivity change of greater than eight orders of magnitude effected through iodine vapor doping of PFS. The sign of thermoel
Publikováno v:
Applied Physics Letters. 85:3567-3569
The effect of negative capacitance (NC) was observed and investigated in conducting polymers with embedded PbS nanocrystals. NC occurred for signal frequencies up to 1MHz and was absent in control samples without nanocrystals. The amplitude of NC inc
Autor:
T.-W. F. Chang, Paul W. Cyr, Edward H. Sargent, Margaret A. Hines, L. Bakueva, Sergei Musikhin, Larissa Levina
Publikováno v:
Applied Physics Letters. 84:4295-4297
We quantify experimentally the efficiency of excitation transfer from a semiconducting polymer matrix to quantum dot nanocrystals. We study 5±0.5 nm PbS nanocrystals embedded in MEH-PPV (poly[2-methoxy-5-(2′-ethylhexyloxy-p-phenylenevinylene)]) po