Buscar
Tunable light emission by exciplex state formation between hybrid halide perovskite and core/shell quantum dots: Implications in advanced LEDs and photovoltaics
(American Association for the Advancement of Science, 2016)
We report the first observation of exciplex state electroluminescence due to carrier injection between the hybrid lead halide perovskite (MAPbI3–xClx) and quantum dots (core/shell PbS/CdS). Single layers of perovskite (PS) ...
Determination of charge carrier mobility of hole transporting polytriarylamine-based diodes
(Elsevier, 2010)
Hole transport properties of three different side chain poly(triarylamines) have been determined by means of the analysis of steady-state current-voltage characteristics using co-planar diode structures. The interpretation ...
Simultaneous determination of carrier lifetime and electron density-of-states in P3HT:PCBM organic solar cells under illumination by impedance spectroscopy
(Elsevier, 2010)
We report new insights into recombination kinetics in poly(3-hexylthiophene):methanofullerene (P3HT:PCBM) bulk heterojunction (BHJ) solar cells, based on simultaneous determination of the density of states (DOS), internal ...
Theory of the impedance of charge transfer via surface states in dye-sensitized solar cells
(Elsevier, 2010)
The dynamics of trapping coupled with charge transfer is analysed in the frequency domain for a model of the dye-sensitized solar cell. We solve the steady state occupations of the surface state and the resulting recombination ...
Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs)
(MDPI, 2018)
The zeolitic imidazolate frameworks (ZIFs) ZIF-8, ZIF-67, and a Zn/Co bimetallic mixture
(ZMix) were synthesized and used as fillers in the preparation of composite sulfonated poly(ether
ether ketone) (SPEEK) membranes. ...
Engineered Diffraction Gratings for Acoustic Cloaking
(American Physical Society, 2019)
We show that engineered diffraction gratings can considerably simplify the design of acoustic ground
cloaking devices. Acoustic reflecting gratings are designed in such a way that all the incident energy is
channeled ...
Modification of polyetherimide membranes with ZIFs fillers for CO2 separation
(Elsevier, 2019)
Flat hybrid membranes composed of polyetherimide (PEI) as matrix and zeolitic imidazolate frameworks (ZIFs) as fillers at concentrations of 10 and 20 wt% were prepared. Apparent permeability coefficient and apparent ...
Glassy dynamics predicted by mutual role of free and activation volumes
(Royal Society of Chemistry, 2019)
Broadband Dielectric Spectroscopy (BDS) at elevated pressures and Positron Annihilation LifetimeSpectroscopy (PALS) are employed to elucidate the importance of the ratio of activation and freevolumes during vitrification. ...
High sampling rate single-pixel digital holography system employing a DMD and phase-encoded patterns
(Optical Society of America, 2018)
A single-pixel digital holography system with phase-encoded illumination using a
digital micromirror device (DMD) as a spatial light modulator (SLM) is presented. The
enhanced switching rate of DMDs, far exceeding the ...
Unravelling the role of vacancies in lead halide perovskite through electrical switching of photoluminescence
(Nature Research, 2018)
We address the behavior in which a bias voltage can be used to switch on and off the
photoluminescence of a planar film of methylammonium lead triiodide perovskite (MAPbI3)
semiconductor with lateral symmetric electrodes. ...