Electrochemically deposited ZnO nanostructure on ZnO:V seeding layer

INERA Workshop: Transition Metal Oxide Thin Films-functional Layers in "Smart windows" and Water Splitting Devices

Lovchinov, K.^1 ; Petrov, M.^1 ; Mikli, V.^2 ; Dimova-Malinovska, D.^1

Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, blvd. Tsarigradsko chaussee 72, Sofia

1784, Bulgaria^1

Materials Research Centre, Tallinn University of Technology, Ehitajate tee 5, Tallinn

19086, Estonia^2

关键词: Electrochemical growth;    ELectrochemical methods;    Glass substrates;    Large effective;    Light-harvesting;    Nanostructured ZnO;    Specular reflectance;    ZnO nanostructures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/559/1/012020/pdf
DOI  :  10.1088/1742-6596/559/1/012020

来源: IOP

【 摘 要 】

ZnO nano structured (NS) arrays are grown by electrochemical method on conductive seeding layers of ZnO doped with V (ZnO:V) deposited by magnetron sputtering on glass substrates. The surface morphology of the ZnO NS is studied by Scanning Electron Microscopy. The spectra of transmittance, diffused and specular reflectance are measured for the ZnO NS arrays deposited for 30 and 60 min. and are compared to the corresponding spectra of the substrate with seeding ZnO:V film. The values of diffused reflection are higher than those of the seeding layers due to the grown of nanostructured ZnO arrays. Increasing of the diffused reflection with the time of electrochemical growth is observed and is explained by increasing size of the grains. The results show the possibility for deposition of nanostructured ZnO arrays on low cost ZnO:V seeding layers with large effective surface area that could be applied in thin film solar cells for increasing light harvesting.