PMID- 21073177
OWN - NLM
STAT- MEDLINE
DCOM- 20110322
LR  - 20101223
IS  - 1944-8244 (Print)
IS  - 1944-8244 (Linking)
VI  - 2
IP  - 12
DP  - 2010 Dec
TI  - Electrospun carbon nanofibers as low-cost counter electrode for dye-sensitized 
      solar cells.
PG  - 3572-7
LID - 10.1021/am100742s [doi]
AB  - Electrospun carbon nanofibers (ECNs) have been explored as an electrocatalyst and 
      low-cost alternative to platinum (Pt) for triiodide reduction in dye-sensitized 
      solar cells (DSCs). The results of electrochemical impedance spectroscopy (EIS) 
      and cyclic voltammetry measurements indicated that the ECN counter electrodes 
      exhibited low charge-transfer resistance (Rct), large capacitance (C), and fast 
      reaction rates for triiodide reduction. Although the efficiency (eta) of ECN-based 
      cells was slightly lower than that of Pt-based cells, their short circuit current 
      density (Jsc) and open circuit voltage (Voc) were comparable. The ECN-based cells 
      achieved an energy conversion efficiency (eta) of 5.5 % under the AM 1.5 
      illumination at 100 mW cm(-2). The reason for lower cell performance using the 
      ECN electrode was because of its lower fill factor (FF) than that of Pt-based 
      cells, probably caused by high total series resistance (RStot) at  approximately 15.5 Omega cm2, 
      which was larger than that of  approximately 4.8 Omega cm2 in the Pt-based devices. Simulated 
      results showed that the fill factor (FF) and eta could be substantially improved by 
      decreasing RStot, which might be achieved by using thinner and highly porous ECNs 
      to reduce the thickness of the ECNs counter electrode.
FAU - Joshi, Prakash
AU  - Joshi P
AD  - Center for Advanced Photovoltaics, Department of Electrical Engineering, South 
      Dakota State University, 020 EECS, Brookings, South Dakota 57007, USA.
FAU - Zhang, Lifeng
AU  - Zhang L
FAU - Chen, Qiliang
AU  - Chen Q
FAU - Galipeau, David
AU  - Galipeau D
FAU - Fong, Hao
AU  - Fong H
FAU - Qiao, Qiquan
AU  - Qiao Q
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20101112
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
RN  - 0 (Coloring Agents)
RN  - 0 (Nanotubes, Carbon)
SB  - IM
MH  - Coloring Agents/*chemistry
MH  - Crystallization/methods
MH  - *Electric Power Supplies
MH  - Electrochemistry/instrumentation
MH  - *Electrodes
MH  - Equipment Design
MH  - Equipment Failure Analysis
MH  - Materials Testing
MH  - Molecular Conformation
MH  - Nanotechnology/instrumentation
MH  - Nanotubes, Carbon/*chemistry/*ultrastructure
MH  - Particle Size
MH  - Rotation
MH  - *Solar Energy
EDAT- 2010/11/16 06:00
MHDA- 2011/03/23 06:00
CRDT- 2010/11/16 06:00
PHST- 2010/11/16 06:00 [entrez]
PHST- 2010/11/16 06:00 [pubmed]
PHST- 2011/03/23 06:00 [medline]
AID - 10.1021/am100742s [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2010 Dec;2(12):3572-7. doi: 10.1021/am100742s. Epub 
      2010 Nov 12.