Quantum Confinement and Interface States in ZnO Nanocrystalline Thin-Film Transistors

Fabrication and characterization of ZnO/Si Heterojunction by Laser Ablation for Solar Cell Application

“…FTIR is an effective way to assignee the composition of the sample. Figure (5) show the IR spectrum for the ZnO NPs. FTIR spectra for the sample prepared which taken for a wave number from (600 to 4000 cm -1 ) shows a serious absorption peaks attributed to carboxylate and Hydroxyl impurities.…”

“…Optical microscope is another technique used to investigate the thin films morphology and shown in figure (4).FTIIR spectroscopy is used to scan using FT-IR spectrometer. The scanned data in the range (600-4000 cm -1 ) was illustrated in figure (5).The optical properties of the synthesized colloidal ZnO NPs were studied using (UV-Vis) spectrophotometer from VARIAN) and figures ( 6) and ( 7) demonstrate the optical properties. Silicon wafer thin films were chemically cleaned and the substrates were divided into (1.5 × 1.5 cm) areas.…”

“…For its high transparency in visible range, high absorption, and nearly optimum band gap energy, Zinc Oxide (ZnO) has most motivated material as a conductive oxide for many applications [1][2][3][4]. ZnO thin films one the most intensive material that has demonstrated significant interest in modern industry [5][6][7]. Several studies have been done in the last few years about their potential applications in transparent electrode display, windows layers in solar cells, ultraviolet laser emission photo detectors, light emitting diodes, laser diodes, gas sensing, and bio sensor [8][9][10][11].…”