Optical determination of the direct bandgap energy of lead iodide crystals

A Ferreira da Silva, N Veissid, CY An, I Pepe… - Applied physics …, 1996 - pubs.aip.org
The optical bandgap energy of lead iodide PbI2, grown by Bridgman's method, is obtained
by photoacoustic spectroscopy. Due to its potential applications, as a room temperature …

Investigations on structural and optical properties of ZnO and ZnO: Co nanoparticles under dense electronic excitations

S Kumar, K Asokan, RK Singh, S Chatterjee… - RSC Advances, 2014 - pubs.rsc.org
In the present study, the structural, morphological, and optical properties of Co-doped ZnO
nanoparticles (NPs) prepared by a sol–gel method before and after dense electronic …

Optical properties and electronic structure of wide band gap II-VI semiconductors

I Hernandez-Calderon - II-VI semiconductor materials and …, 2018 - api.taylorfrancis.com
1 Introduction 2 Cubic and Hexagonal Structures 2.1 Binary Compounds 2.2 Ternary Alloys
2.3 Quaternary Alloys 2.3. 1 Prediction of the Lattice Constant of a Binary Compound 3 The …

Synthesis of colloidal Zn (Te, Se) alloy quantum dots

H Asano, K Arai, M Kita, T Omata - Materials Research Express, 2017 - iopscience.iop.org
Abstract Colloidal Zn (Te 1− x Se x) quantum dots (QDs), which are highly mismatched
semiconductor alloys, were synthesized by the hot injection of an organometallic solution …

Band gap energy determination by photoacoustic absorption and optical analysis of Cd1− xZnxTe for low zinc concentrations

JJ Prías-Barragán, L Tirado-Mejía… - Journal of crystal …, 2006 - Elsevier
In this paper we present a study of the optical properties of CdZnTe single crystal for low Zn
concentrations at room temperature using photoacoustic spectroscopy and photoreflectance …

[HTML][HTML] Thermal diffusivity measurement of undoped Yb2O3 oxide by self-made photoacoustic cell

MI Sarkar, K Kumar - Materials Letters: X, 2023 - Elsevier
Photoacoustic spectroscopy is an essential technique for material characterization by
measuring acoustic noise inside a cell. In this work, we have fabricated a photoacoustic cell …

Fabrication of a photoacoustic cell and thermal diffusivity measurement of graphene oxide using photoacoustic spectroscopy

MI Sarkar, MM Upadhyay… - Proceedings of the …, 2024 - journals.sagepub.com
Photoacoustic spectroscopy (PAS) is an important technique for the characterization of
materials by measuring the heat produced due to the non-radiative transitions. Here, the …

Thermal diffusivity of lead iodide

TS Silva, AS Alves, I Pepe, H Tsuzuki… - Journal of Applied …, 1998 - pubs.aip.org
The sensitivity of a modulation frequency in the photoacoustic spectroscopy PAS technique
has been amply demonstrated in various thermal diffusivity measurements of …

Determination of the band gap of indium-rich InGaN by means of photoacoustic spectroscopy

R Oliva, SJ Zelewski, Ł Janicki… - Semiconductor …, 2018 - iopscience.iop.org
Photoacoustic (PA) measurements have been performed on a series of In x Ga 1− x N thin
films grown with x> 50%. In order to illustrate the usefulness of this technique, these …

Identification of point defects on Co-Ni codoping in SnO2 nanocrystals and their effect on the structural and optical properties

S Roy, B Prajapati, A Singh, AG Joshi… - Journal of Applied …, 2019 - pubs.aip.org
Sn 0.97− y Co 0.03 Ni y O 2 (0≤ y≤ 0.04) nanocrystals, with the average crystallite size in
the range from 7.3 nm (for y= 0.00⁠) to 5.6 nm (for y= 0.04⁠), have been synthesized using …