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Title: MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework

Metal–organic frameworks (MOFs) are highly ordered, functionally tunable supramolecular materials with the potential to improve dye-sensitized solar cells (DSSCs). Several recent reports have indicated that photocurrent can be generated in Grätzel-type DSSC devices when MOFs are used as the sensitizer. However, the specific role(s) of the incorporated MOFs and the potential influence of residual MOF precursor species on device performance are unclear. Herein, we describe the assembly and characterization of a simplified DSSC platform in which isolated MOF crystals are used as the sensitizer in a planar device architecture. We selected a pillared porphyrin framework (PPF) as the MOF sensitizer, taking particular care to avoid contamination from light-absorbing MOF precursors. Photovoltaic and electrochemical characterization under simulated 1-sun and wavelength-selective illumination revealed photocurrent generation that is clearly ascribable to the PPF MOF. In conclusion, continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [2] ;  [1] ;  [2] ;  [2] ;  [1] ;  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Report Number(s):
SAND-2017-11246J
Journal ID: ISSN 1932-7447; 658036; TRN: US1703133
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 121; Journal Issue: 9; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY
OSTI Identifier:
1406370

Spoerke, Erik D., Small, Leo J., Foster, Michael E., Wheeler, Jill, Ullman, Andrew M., Stavila, Vitalie, Rodriguez, Mark, and Allendorf, Mark D.. MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework. United States: N. p., Web. doi:10.1021/acs.jpcc.6b11251.
Spoerke, Erik D., Small, Leo J., Foster, Michael E., Wheeler, Jill, Ullman, Andrew M., Stavila, Vitalie, Rodriguez, Mark, & Allendorf, Mark D.. MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework. United States. doi:10.1021/acs.jpcc.6b11251.
Spoerke, Erik D., Small, Leo J., Foster, Michael E., Wheeler, Jill, Ullman, Andrew M., Stavila, Vitalie, Rodriguez, Mark, and Allendorf, Mark D.. 2017. "MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework". United States. doi:10.1021/acs.jpcc.6b11251. https://www.osti.gov/servlets/purl/1406370.
@article{osti_1406370,
title = {MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework},
author = {Spoerke, Erik D. and Small, Leo J. and Foster, Michael E. and Wheeler, Jill and Ullman, Andrew M. and Stavila, Vitalie and Rodriguez, Mark and Allendorf, Mark D.},
abstractNote = {Metal–organic frameworks (MOFs) are highly ordered, functionally tunable supramolecular materials with the potential to improve dye-sensitized solar cells (DSSCs). Several recent reports have indicated that photocurrent can be generated in Grätzel-type DSSC devices when MOFs are used as the sensitizer. However, the specific role(s) of the incorporated MOFs and the potential influence of residual MOF precursor species on device performance are unclear. Herein, we describe the assembly and characterization of a simplified DSSC platform in which isolated MOF crystals are used as the sensitizer in a planar device architecture. We selected a pillared porphyrin framework (PPF) as the MOF sensitizer, taking particular care to avoid contamination from light-absorbing MOF precursors. Photovoltaic and electrochemical characterization under simulated 1-sun and wavelength-selective illumination revealed photocurrent generation that is clearly ascribable to the PPF MOF. In conclusion, continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies.},
doi = {10.1021/acs.jpcc.6b11251},
journal = {Journal of Physical Chemistry. C},
number = 9,
volume = 121,
place = {United States},
year = {2017},
month = {3}
}