Investigation of optical, structural, and photoelectrochemical properties of CdS/CdSe heterojunction depending on different deposition times

Photoelectrochemical Properties and Characterization of CdS/CdSe Heterojunctions Obtained by CBD on ITO and p–Si Substrates

“…It is clearly visible from Figure 3 (a) that nanowires (NWs) and spherical nanoparticles (NPs) were formed. These NWs are attributed to the CdSe semiconductor compound, as mentioned in our prior studies [10,17,21–23] . Figure 3 (b) demonstrates an image of these nanowires (NWs) at a magnification of 100 000×, along with an inset image at 50 000× magnification.…”

“…These NWs are attributed to the CdSe semiconductor compound, as mentioned in our prior studies. [10,17,[21][22][23] Figure 3 (b) demonstrates an image of these nanowires (NWs) at a magnification of 100 000×, along with an inset image at 50 000× magnification. By measurements taken on several nanowires, the diameters of NWs were determined in the range of 124 nm to 236 nm.…”

“…[7,8] When CdS and CdSe are come into direct contact, the band edge is altered simultaneously because of Fermi-level alignment, resulting in the formation of a heterojunction. [9] CdS and CdSe thin film semiconductors were obtained by various methods such as chemical bath deposition (CBD), [10] electrochemical deposition (ED), [11] and pulsed laser deposition. [12] The CBD is the best technique among all techniques because it is simple, economical and applicable to large areas.…”

“…We have employed the CBD technique in our lab to produce thin films of CdS, [16] CdSe, [17] ZnS, [18] ZnSe, [19] SnS, [20] and CdS/CdSe. [10] Moreover, CdSe was obtained as a nanowire (NW) structure using the CBD method on various substrates. [17,[21][22][23] This study focused on a comprehensive investigation of the structural, optical, electrical, and photoelectrochemical properties of the CdS/CdSe heterojunctions produced on indium doped tin oxide (ITO) coated glass and p-Si substrates.…”

“…CdS and CdSe thin film semiconductors were obtained by various methods such as chemical bath deposition (CBD), [10] electrochemical deposition (ED), [11] and pulsed laser deposition [12] . The CBD is the best technique among all techniques because it is simple, economical and applicable to large areas [13–15] .…”