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Pump‐probe spectroscopy in organic semiconductors: monitoring fundamental processes of relevance in optoelectronics
In this review we highlight the contribution of pump‐probe spectroscopy to understand
elementary processes taking place in organic based optoelectronic devices. The techniques …
elementary processes taking place in organic based optoelectronic devices. The techniques …
Photoconduction in amorphous organic solids
Herein, we focus on the principles of photoconduction in random semiconductors—the key
processes being optical generation of charge carriers and their subsequent transport. This is …
processes being optical generation of charge carriers and their subsequent transport. This is …
Terahertz conductivity of thin gold films at the metal-insulator percolation transition
Terahertz time-domain spectroscopy is used to measure the complex conductivity of
nanometer-thick gold films evaporated on silicon substrates in the far-infrared spectral …
nanometer-thick gold films evaporated on silicon substrates in the far-infrared spectral …
Observation of a transient decrease in terahertz conductivity of single-layer graphene induced by ultrafast optical excitation
We have measured the terahertz frequency-dependent sheet conductivity and its transient
response following femtosecond optical excitation for single-layer graphene samples grown …
response following femtosecond optical excitation for single-layer graphene samples grown …
Observation of Negative Terahertz Photoconductivity in Large Area Type-II Dirac Semimetal
As a newly emergent type-II Dirac semimetal, platinum telluride (PtTe 2) stands out from
other two dimensional noble-transition-metal dichalcogenides for the unique band structure …
other two dimensional noble-transition-metal dichalcogenides for the unique band structure …
Far-infrared response of free charge carriers localized in semiconductor nanoparticles
A Monte Carlo method is employed to calculate the dynamical conductivity in the terahertz
range of free charge carriers localized in semiconductor nanoparticles. The shape of the …
range of free charge carriers localized in semiconductor nanoparticles. The shape of the …
Influence of the Electron-Cation Interaction on Electron Mobility in Dye-Sensitized ZnO <?format ?>and Nanocrystals: A Study Using Ultrafast Terahertz …
Charge transport and recombination in nanostructured semiconductors are poorly
understood key processes in dye-sensitized solar cells. We have employed time-resolved …
understood key processes in dye-sensitized solar cells. We have employed time-resolved …
Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals
We measure the transient photoconductivity in pentacene, functionalized pentacene,
tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all …
tetracene, and rubrene single crystals using optical pump-terahertz probe techniques. In all …
Terahertz probe of photoexcited carrier dynamics in the Dirac semimetal
The relaxation dynamics of photoexcited quasiparticles of three-dimensional (3D) Dirac
semimetals is vital towards their application in high-performance electronic and …
semimetals is vital towards their application in high-performance electronic and …
Ultrafast carrier dynamics in microcrystalline silicon probed by time-resolved terahertz spectroscopy
We present the results of optical-pump–terahertz probe experiments applied to a set of thin-
film microcrystalline silicon samples, with structures varying from amorphous to fully …
film microcrystalline silicon samples, with structures varying from amorphous to fully …