Vibrational spectroscopy of compound semiconductor nanocrystals

VM Dzhagan, YM Azhniuk, AG Milekhin… - Journal of Physics D …, 2018 - iopscience.iop.org
A review of recent applications of Raman spectroscopy as a fast, sensitive, and non-
destructive technique for exploring II–VI semiconductor nanocrystals fabricated by various …

Phonon Raman spectroscopy of nanocrystalline multinary chalcogenides as a probe of complex lattice structures

V Dzhagan, AP Litvinchuk, MY Valakh… - Journal of Physics …, 2022 - iopscience.iop.org
Abstract Ternary (I–III–VI) and quaternary (I–II–IV–VI) metal-chalcogenides like CuInS 2 or
Cu 2 ZnSn (S, Se) 4 are among the materials currently most intensively investigated for …

Interfacial alloying in CdSe/CdS heteronanocrystals: A Raman spectroscopy analysis

N Tschirner, H Lange, A Schliwa, A Biermann… - Chemistry of …, 2012 - ACS Publications
We investigate the interface between core and shell in zinc blende CdSe-based CdSe/CdS
dot-in-dot heteronanocrystals. Using X-ray diffraction and transmission electron microscopy …

Exciton-phonon coupling in individual ZnTe nanorods studied by resonant Raman spectroscopy

Q Zhang, J Zhang, MIB Utama, B Peng… - Physical Review B …, 2012 - APS
The exciton-phonon coupling in high-quality cubic phase zinc telluride (ZnTe) nanorods
(NRs) is investigated by resonant micro-Raman spectroscopy near the direct bandgap of …

Size, ligand, and defect-dependent electron–phonon coupling in chalcogenide and perovskite nanocrystals and its impact on luminescence line widths

N Yazdani, S Volk, O Yarema, M Yarema… - ACS Photonics, 2020 - ACS Publications
The systematic study of electron–phonon coupling in nanocrystals (NC) via first-principles
methods has been limited by the large system sizes presented by the NCs. Here, we present …

Sensitization of titanium dioxide photoanodes with cadmium selenide quantum dots prepared by SILAR: photoelectrochemical and carrier dynamics studies

N Guijarro, T Lana-Villarreal, Q Shen… - The Journal of …, 2010 - ACS Publications
Quantum dot sensitized solar cells have the potentiality to emerge as viable third-generation
photovoltaic devices. In these cells, the photoanode is constituted by a nanostructured oxide …

Physical origin of the impact of different nanocrystal surface modifications on the performance of CdSe/P3HT hybrid solar cells

N Radychev, I Lokteva, F Witt… - The Journal of …, 2011 - ACS Publications
Alkylamines were recently found to be suitable ligands for CdSe quantum dots with respect
to applications in polymer/nanoparticle solar cells. However, the physical origin of the …

Fabrication, characterization and photoelectrochemical properties of CdS/CdSe nanofilm co-sensitized ZnO nanorod arrays on Zn foil substrate

C Li, S Chen, X Gao, W Zhang, Y Wang - Journal of Colloid and Interface …, 2021 - Elsevier
The photoelectrochemical (PEC) performance of ZnO is restricted by its low light absorption
ability and high recombination rate of photogenerated carriers. In order to overcome these …

Enhancing the photodetection property of CdSe thin films via thermal evaporation technique: role of substrate temperature

SS Kumar, S Valanarasu, KV Gunavathy… - Physica …, 2022 - iopscience.iop.org
The current work investigates the influence of the substrate temperature on the
photodetection capability of cadmium selenide (CdSe) thin films deposited through …

Phonon Raman spectra of colloidal CdTe nanocrystals: effect of size, non-stoichiometry and ligand exchange

V Dzhagan, I Lokteva, C Himcinschi, X Jin… - Nanoscale research …, 2011 - Springer
Resonant Raman study reveals the noticeable effect of the ligand exchange on the
nanocrystal (NC) surface onto the phonon spectra of colloidal CdTe NC of different size and …