Effect of Boron Doping on the Fabrication and Characterization of Zinc Oxide Nanoparticle Thin Films Deposited Using Spray Pyrolysis Technique

نویسندگان

1 Faculty of Physical Education and Sports Sciences, University of Kerbala, Iraq

doi
10.22052/JNS.2026.02.018
چکیده

Two different amounts of boron, 2% and 4%, were added to zinc oxide (ZnO) films using the spray pyrolysis technique (SPT), in addition to un-doped ZnO films. Grain size increased from 11.14 nm to 12.29 nm as boron was added and its quantities were increased, according to structural research, indicating that the sample films are polycrystalline. According to the results of the X-ray diffraction analysis, the major crystallographic reflection is the (101) plane. The deposited film samples were examined using Atomic Force Microscopy (AFM). Nanostructured ZnO films with 0% doping, 1% boron doped, and 4% boron doped had average particle sizes of around 78.70 nm, 67.78 nm, and 42.10 nm, respectively. Undoped ZnO had a root mean square roughness (Rrms) of 9.68 nm, whereas boron-doped ZnO had a Ra value of 4.79 nm and a Ra value of 3.34 nm. A visible-light transmittance of more than 65% was achieved. Optical bandgap values also decreased following boron addition, from 3.16 eV to 3.04 eV. Additionally, the dopant concentration rose in tandem with the absorption coefficient, especially once the boron level hit 3%. The results also showed that the refractive index and extinction coefficient improved as the boron level rose.