Optical and structural properties of electrochemically deposited ZnO nanorod arrays suitable for improvement of the light harvesting in thin film solar cells

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

Petrov, M.^1 ; Lovchinov, K.^1 ; Mews, M.^2 ; Leendertz, C.^2 ; Dimova-Malinovska, D.^1

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

1784, Bulgaria^1

Helmholtz-Zentrum Berlin für Materialien und Energie, Institut Silizium Photovoltaik, Kekuléstr.5, Berlin

12489, Germany^2

关键词: Anti-reflection;    Haze ratios;    Light-harvesting;    Si-based solar cells;    Stainless steel plate;    Total reflectance;    Total reflection;    ZnO nanorod arrays;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/559/1/012018/pdf
DOI  :  10.1088/1742-6596/559/1/012018

来源: IOP

【 摘 要 】

The results of study of the optical and structural properties of ZnO nanorods (NR) arrays electrochemically deposited on two type substrates-the ITO surface on the front side of Si heterojunction (SHJ) solar cells and on stainless steel plate used for formation of a-Si:H thin film solar cells, are reported. The surface morphology of the NS arrays is examined by Scanning Electron Microscopy and AFM. The spectra of specular diffused and total reflection, and haze ratio in reflectance are compared before and after deposition of the ZnO NR arrays. In the case of deposition on ITO surface of SHJ solar cells the values of the direct and diffused reflection of the ZnO NR array decrease demonstrating good antireflection properties. Deposition of ZnO NS arrays on stainless steel plates leads to increasing the values of the diffused reflection and the total reflectance. Possible application of ZnO NS structures for the processing of advanced Si based solar cells for increasing light harvesting is discussed.