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Creator | Title | Description | Subject | Date |
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Gondolo, Paolo | Daily modulation due to channeling in direct dark matter crystalline detectors | The channeling of the ion recoiling after a collision with a weakly interacting massive particle (WIMP) in direct dark matter crystalline detectors produces a larger scintillation or ionization signal than otherwise expected. Channeling is a directional effect, which depends on the velocity distrib... | | 2011 |
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Vardeny, Zeev Valentine | The effects of charge injection in single-wall carbon nanotubes studied by charge-induced absorption | We studied direct charge injection in a heterogeneous film of single-wall carbon nanotubes using the technique of charge-induced absorption. We found that the injected charges screen the excitons in the semiconducting tubes, reducing their binding energy and transferring oscillator strength from the... | | 2011 |
3 |
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Vardeny, Zeev Valentine | Evidence for excimer photoexcitations in an ordered ?-conjugated polymer film | We report pressure-dependent transient picosecond and continuous-wave photomodulation studies of disordered and ordered films of 2-methoxy-5-(2-ethylhexyloxy) poly(para-phenylenevinylene). Photoinduced absorption (PA) bands in the disordered film exhibit very weak pressure dependence and are assign... | | 2011 |
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Vardeny, Zeev Valentine | Study of magneto-electroluminescence and magneto-conductance in polymer light-emitting electrochemical cells | Magneto-electroluminescence (MEL) and magneto-conductance (MC) have been investigated in polymer light-emitting electrochemical cells based on ?super-yellow? poly-(phenylene vynilene) (SY-PPV). We measured positive MEL(B) and MC(B) responses that show a modified Lorentzian shape for B < 120 mT. At ... | | 2011 |
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Gondolo, Paolo | XENON10/100 dark matter constraints in comparison with CoGeNT and DAMA: Examining the L eff dependence | We consider the compatibility of DAMA/LIBRA, CoGeNT, XENON10 and XENON100 results for spin-independent (SI) dark matter weakly interacting massive particles, particularly at low masses (~10 GeV), assuming a standard dark matter halo. The XENON bounds depend on the scintillation efficiency factor Lef... | | 2011 |