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Nitrogen‐Doped CN x /CNTs Heteroelectrocatalysts for Highly Efficient Dye‐Sensitized Solar Cells
Author(s) -
Shrestha Aabhash,
Batmunkh Munkhbayar,
Shearer Cameron J.,
Yin Yanting,
Andersson Gunther G.,
Shapter Joseph G.,
Qiao Shizhang,
Dai Sheng
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201602276
Subject(s) - dye sensitized solar cell , materials science , triiodide , electrocatalyst , carbon nanotube , auxiliary electrode , electrolyte , doping , catalysis , energy conversion efficiency , nanotechnology , carbon fibers , solar cell , chemical engineering , nitrogen , electrode , inorganic chemistry , electrochemistry , optoelectronics , organic chemistry , composite material , chemistry , engineering , composite number
The use of polydopamine as a nitrogen containing precursor to generate catalytically active nitrogen‐doped carbon (CN x ) materials on carbon nanotubes (CNTs) is reported. These N‐doped CN x /CNT materials display excellent electrocatalytic activity toward the reduction of triiodide electrolyte in dye‐sensitized solar cells (DSSCs). Further, the influence of various synthesis parameters on the catalytic performance of CN x /CNTs is investigated in detail. The best performing device fabricated with the CN x /CNTs material delivers power conversion efficiency of 7.3%, which is comparable or slightly higher than that of Pt (7.1%) counter electrode‐based DSSC. These CN x /CNTs materials show great potential to address the issues associated with the Pt electrocatalyst including the high cost and scarcity.