Carrier dynamics
Hintermayr, Verena (2018): Tuning the carrier dynamics in light-emitting lead halide perovskite nanoplatelets. Dissertation, LMU München: Fakultät für Physik
... charge carrier dynamics in lead halide perovskite ...the carrier cooling behavior as well as the exciton formation dynamics exhibit a thickness ...
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Generated carrier dynamics in V-pit enhanced InGaN/GaN light emitting diode
... the carrier dynamics of a V-pit enhanced MQW LED. At low carrier densities, the V-pits acted as TD passivating barriers, thereby permitting efficient radiative recombination in the ...as ...
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Picosecond carrier dynamics induced by coupling of wavefunctions in a Si nanodisk array fabricated by neutral beam etching using bio nano templates
... the carrier dynamics in the nanostructures because carrier transfer or separation can be understood by a combined effect of the spatial distribution of carrier wavefunction with the energy re- ...
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Observation of ultrafast free carrier dynamics in single layer MoS2
... the carrier dynamics near arbitrary points of a material’s Brillouin zone (BZ) has only recently become possible with the advent of high photon energy laser light via high harmonic ...
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Light Emission and Ultrafast Carrier Dynamics in III V Semiconductors from First Principles
... of carrier scattering and treats all phonon modes on equal footing, enabling accurate calculations of relaxation times (RTs) and hot carrier dynamics in GaN, as we have shown above (see Chapter 2 and ...
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Carrier Dynamics of p n Heterojunction Organic Photovoltaic Cells Analyzed by a Novel Graphic Representation of Impedance Spectroscopy
... the carrier dynamics in the OPV cells are still not fully understood because of the complexity of the interactions between each organic ...the carrier recombination rate [6]. Iwamoto et al. have ...
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Carrier dynamics in InGaN/GaN on the basis of different In concentrations
... the carrier dynamics associated with carrier localization in potential minimums [23-25, 38, ...free- carrier states, corresponding to the background InGaN compound on which clusters were ...to ...
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Simulation and Analysis of Carrier Dynamics in the InAs/GaAs Quantum Dot Laser, Based upon Rate Equations
... the carrier dynamics and pho- ton densities of individual levels, we are able to investi- gate relaxation oscillations, laser response to step injec- tion current, P-I characteristic curve, relation between ...
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Femtosecond Carrier Dynamics in In2O3Nanocrystals
... the carrier dynamics for the carrier densities investigated in this ...generated carrier dynamics in the nanocrystals and to fit the fluence-dependent differential absorption ...
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Investigation of optical cavity modes and ultrafast carrier dynamics in ZnO rods using second-harmonic generation and transient absorption pump-probe microscopy
... mechanisms. Carrier confinement in the sharp features of high-aspect structures and variation in defect density are two ...influence carrier relaxation and could result in behavior that differs from one ...
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Chemical characterization and charge carrier dynamics of crystalline silicon(111) surfaces modified with surface-bound organic functional groups
... charge carrier pairs on the alkylated surface recombine. Surface charge carrier recombination velocities are our most sensitive measurement of the electronic quality of a surface and must be the standard by ...
228
Charge carrier dynamics, mobilities and diffusion lengths of 2D 3D hybrid butylammonium caesium formamidinium lead halide perovskites
... charge- carrier recombination rate constants, mobilities, and diffusion lengths, will allow for an enhanced understanding of how best to tune these 2D–3D hybrid materials for optimized ...
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Ultrafast Transient Absorption Spectroscopy of Valley Carrier Dynamics in Atomically Thin Transition Metal Dichalcogenides.
... significant role in exchange induced valley depolarization through carrier-phonon interaction as well as subtle differences in quantum confinement. Specifically, different environmental factors might result into ...
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Investigation of ultrafast carrier dynamics within specific regions of a single ZnO rod using two-photon microscopy
... the dynamics at the end and middle of the structures, the magnitude of the shift in the interior is more variable, shifting between 5 and 20 nm, depending on the structure (data not ...
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Temperature dependent charge carrier dynamics in CH3NH3PbI3 perovskite thin films
... cating that the conductivity obeys the Drude model. Below the tetragonal to orthorhombic phase transition tempera- ture, however, deviations from ideal Drude behavior are apparent. Furthermore, the extent of deviation ...
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Charge carrier dynamics and mobilities in formamidinium lead mixed halide perovskites
... constants and the composition and therefore electronic struc- ture of the material. As discussed above, the material crystal- linity is markedly lower toward the central region of 0.3 < y < 0.5, however, the ...
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Effects of surface modification on charge carrier dynamics at semiconductor interfaces
... mean carrier lifetimes of all three surfaces in air (21 ∞ C and 7% ...mean carrier lifetimes of polymer-terminated surfaces had also dropped to about 50 ...
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Ultrafast nonlinear transparency driven at a telecom wavelength in an organic semiconductor system
... low frequency probes below the P3HT gap are more sen- sitive to strongly-bound charge transfer (CT) excitons or polarons in BHJ films that generate mid-gap CT states by attracting π and π ∗ bands into the gap. This is ...
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CatingSubramanian_unc_0153D_18146.pdf
... comparing dynamics in the substrate- supported and suspended sections of a single ...free-carrier dynamics, it does have a clear and significant impact on the thermal relaxation properties of the ...
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Strong localization effect and carrier relaxation dynamics in self assembled InGaN quantum dots emitting in the green
... of carrier transport and relaxation shown in Figure 4, we can give a reasonable explanation of the two decay stages and make a better understanding of the carrier dynamics in the InGaN ...the ...
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