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Title: Screen printed silver top electrode for efficient inverted organic solar cells

Highlights: • Screen printing of silver pattern. • X-ray diffraction pattern confirmed the face centered cubic structure of silver. • Uniform surface morphology of silver pattern with sheet resistance of 0.06 Ω/sq. • The power conversion efficiency of fabricated solar cell is found to be 2.58%. - Abstract: The present work is mainly focused on replacement of the vacuum process for top electrode fabrication in organic solar cells. Silver top electrode deposited through solution based screen printing on pre-deposited polymeric thin film. The solution based printing technology provides uniform top electrode without damaging the underlying organic layers. The surface crystallinity and surface morphology of silver top electrode are examined through X-ray diffraction, field-emission scanning electron microscope and atomic force microscope. The purity of silver is examined through X-ray energy dispersive spectroscopy. The top electrode exhibits face centered cubic structure with homogeneous morphology. The sheet resistance of top electrode is found to be 0.06 Ω/sq and an average pattern thickness of ∼15 μm. The power conversion efficiency is 2.58%. Our work demonstrates that the solution based screen printing is a significant role in the replacement of vacuum process for the fabrication of top electrode in organic solar cells.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [2]
  1. Department of Printed Electronics, Korea Institute of Machinery & Materials (KIMM), Daejeon (Korea, Republic of)
  2. Department of Mechatronics Engineering, Jeju National University, Jeju (Korea, Republic of)
Publication Date:
OSTI Identifier:
22475926
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 70; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMIC FORCE MICROSCOPY; CONVERSION; EFFICIENCY; ELECTRICAL PROPERTIES; ELECTRODES; FCC LATTICES; FIELD EMISSION; IMPURITIES; LAYERS; ORGANIC SOLAR CELLS; SCANNING ELECTRON MICROSCOPY; SCREEN PRINTING; SILVER; SPECTROSCOPY; SURFACES; THICKNESS; THIN FILMS; X-RAY DIFFRACTION