Preparation of CZTS thin films for the fabrication of ZnO nanorods based superstrate solar cells

Peksu E., Karaağaç H.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.884, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 884
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.jallcom.2021.161124
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Anahtar Kelimeler: ZnO nanorods, Cu2ZnSnS4, Solar cell, Thin films, OPTICAL-PROPERTIES, KESTERITE CU2ZNSNS4, PHOTOCURRENT GENERATION, NANOPARTICLES, SULFURIZATION, PROSPECTS, DEPOSITION, GROWTH, PHASE, HFO2
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Intensive studies have recently been performed to produce low-cost, environmentally friendly and high-efficiency cells. Some of these studies are associated with the incorporation of one-dimensional nanos-tructures into thin film based solar cell architecture. The aim of this work was therefore to build one of these structures by incorporating ZnO nanorod into the conventional Cu2ZnSnS4 (CZTS) thin film system. To achieve this, conformally CdS-coated vertically-aligned ZnO nanorods (NRs) were first successfully synthesized on ITO-coated substrates by using the hydrothermal technique. ZnO NRs were then decorated with 600 nm thick CZTS thin layer by a one-step thermal evaporation route to produce a SLG/ITO/ZnO-NR/CdS/ CZTS/Ag superstrate solar cell architecture. The findings revealed the formation of Cu-poor mono-phase kesterite CZTS thin film with an optical band gap of 1.45 eV. The performance of the fabricated solar cell was measured both in the dark and under irradiation of (AM) 1.5 G at room temperature. The superstrate solar cell had a short-circuit current density of similar to 20.80 mA/cm(2), an open-circuit voltage of similar to 0.46 V, a fill factor of similar to 29.5%, providing similar to 2.82% of the energy conversion efficiency. (C) 2021 Elsevier B.V. All rights reserved.