Optical modulation techniques applied in the analysis of chalcopyrite semiconductor heterostructures

Application of optical spectroscopic techniques in the characterization of elastic strain effects in semiconductor heterostructures and nanostructures and in semiconductor-based thin-film solar cells

“…It has also been dealt with in Ref. , is reviewed in the Appendix of the present work in the quasicubic approximation (Eqs. –), and was modified to account for the tetragonal distortion of the chalcopyrite unit cell (Eqs.…”

“… to describe stresses in In x Ga 1− x As 1− y P y alloys on InP and GaAs substrates and was modified in Refs. to calculate strains/stresses in epitaxial chalcopyrite semiconductor layers and chalcopyrite‐absorber‐based thin‐film solar cells.…”

“…CuIn 1− x Ga x Se 2 (a) PR spectra of epitaxial layers, with x = 0.00, 0.19, and 1.00, on GaAs(100), and compositional dependence of (b) lattice constant and (c) transition energies E a and E b of epitaxial layers and strain‐free bulk crystals.…”

Engineering of Optical and Electrical Properties of Electrodeposited Highly Doped Al:ZnO and In:ZnO for Cost-Effective Photovoltaic Device Technology

“…The field of ZnO research and applications has widely been scanned, in the past and at present, as already reported in our recent publications [1][2][3][4]. Our efforts are primarily focused on the engineering of the structural, optical, and electrical properties of chalcopyrite semiconductor based thin-film solar cells (TFSCs) [5][6][7][8][9][10][11][12][13] with Cu(In,Ga)Se 2 (CIGS) absorber [1], ZnSe buffer [4], and ZnO window, front-contact, and antireflective coating (ARC) [2,3] processed by electrochemical deposition (ECD) techniques. Electrodeposition with cost-effective, large-area, moderate-temperature, fast-rate performance can be scaledup to industrial processes.…”

“…Electrochemical deposition (ECD) techniques have similar prospects for application in material synthesis and large-volume production, yet distinctly superior rating for costeffective overall processing of efficient chalcopyrite semiconductor based thin-film solar cells (CIS/CIGS TFSCs) extensively analyzed in our previous reports [1][2][3][4][5][6][7][8][9][10][11][12][13] of the List of References . ECD is a reliable method for fabricating, with high reproducibility, excellent-quality n-type ZnO material with high carrier concentration, high carrier mobility, and low resistivity, as demonstrated in our previous reports [2,3] and the current study.…”