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This content will become publicly available on July 19, 2018

Title: 3D graphene from CO 2 and K as an excellent counter electrode for dye-sensitized solar cells

3D graphene, which was synthesized directly from CO 2 via its exothermic reaction with liquid K, exhibited excellent performance as a counter electrode for a dye-sensitized solar cell (DSSC). The DSSC has achieved a high power conversion efficiency of 8.25%, which is 10 times larger than that (0.74%) of a DSSC with a counter electrode of the regular graphene synthesized via chemical exfoliation of graphite. The efficiency is even higher than that (7.73%) of a dye-sensitized solar cell with an expensive standard Pt counter electrode. This work provides a novel approach to use a greenhouse gas for DSSCs.
Authors:
 [1] ;  [2] ; ORCiD logo [1]
  1. Michigan Technological Univ., Houghton, MI (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-200055-2018-JAAM
Journal ID: ISSN 0363-907X
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
International Journal of Energy Research
Additional Journal Information:
Journal Volume: 41; Journal Issue: 15; Journal ID: ISSN 0363-907X
Publisher:
Wiley
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1425054