Buscar
Mostrando ítems 61-70 de 111
Efficiency of extrinsic and intrinsic charge-carrier photogeneration processes obtained from the steady-state photocurrent action spectra of poly(p-phenylene vinylene) derivatives
(Springer, 2012-09-01)
The efficiency of the charge-carrier photogeneration processes in poly(2,5-bis(3',7'-dimethyl-octyloxy)-1,4-phenylene vinylene) (OC(1)OC10-PPV) has been analyzed by the spectral response of the photocurrent of devices in ...
Propiedades optoeléctricas de películas delgadas de compuestos II-VI producidas por evaporación coaxial en alto vacío
(2016-11-11)
En este trabajo se prepararon películas delgadas de ZnSe, ZnTe y del material ternario ZnSe1-xTex con diferentes composiciones. Además de realizar un estudio de los materiales preparados por esta técnica, se pretendía ...
Microwave-induced Hall resistance in bilayer electron systems
(AMER PHYSICAL SOC, 2011)
The influence of microwave irradiation on dissipative and Hall resistance in high-quality bilayer electron systems is investigated experimentally. We observe a deviation from odd symmetry under magnetic-field reversal in ...
Structural and Electric-Optical Properties of Zinc Phthalocyanine Evaporated Thin Films: Temperature and Thickness Effects
(Amer Chemical Soc, 2010-07-22)
It is known that the molecular architecture plays a fundamental role in the electrical and optical properties of materials processed in the form of thin films. Here, zinc phthalocyanine (ZnPc) thin films were fabricated ...
Structural and Electric-Optical Properties of Zinc Phthalocyanine Evaporated Thin Films: Temperature and Thickness Effects
(Amer Chemical Soc, 2010-07-22)
It is known that the molecular architecture plays a fundamental role in the electrical and optical properties of materials processed in the form of thin films. Here, zinc phthalocyanine (ZnPc) thin films were fabricated ...
Determination of the density of defect states by thermally stimulated conductivity studied from numerical simulations
(Elsevier Science, 2004-04)
Starting from the multiple trapping rate equations that define the non-equilibrium concentrations of electrons and holes in extended states, the thermally stimulated conductivity (TSC) experiment is examined. A system of ...
Evaluation of Bulk and Surfaces Absorption Edge Energy of Sol-Gel-Dip-Coating SnO2 Thin Films
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2010-10-01)
The absorption edge and the bandgap transition of sol-gel-dip-coating SnO2 thin films, deposited on quartz substrates, are evaluated from optical absorption data and temperature dependent photoconductivity spectra. Structural ...
Evaluation of Bulk and Surfaces Absorption Edge Energy of Sol-Gel-Dip-Coating SnO2 Thin Films
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2010-10-01)
The absorption edge and the bandgap transition of sol-gel-dip-coating SnO2 thin films, deposited on quartz substrates, are evaluated from optical absorption data and temperature dependent photoconductivity spectra. Structural ...