MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework

Erik D. Spoerke; Leo J. Small; Michael E. Foster; Jill Wheeler; Andrew M. Ullman; Vitalie Stavila; Mark Rodriguez; Mark D. Allendorf

doi:10.1021/acs.jpcc.6b11251

MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework

Erik D. Spoerke, Leo J. Small, Michael E. Foster, Jill Wheeler, Andrew M. Ullman, Vitalie Stavila, Mark Rodriguez, Mark D. Allendorf

Research output: Contribution to journal › Article › peer-review

82 Scopus citations

Abstract

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. Continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies. (Figure Presented).

Original language	English
Pages (from-to)	4816-4824
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	121
Issue number	9
DOIs	https://doi.org/10.1021/acs.jpcc.6b11251
State	Published - Mar 9 2017
Externally published	Yes

Funding

The authors thank Ms. Bonnie McKenzie of Sandia National Laboratories for assistance with scanning electron microscopy. This work was funded by the Department of Energy, Office of Energy Efficiency & Renewable Energy, through the SunShot Next Generation Photovoltaics 3 program (Award DE-EE0028306). Sandia National Laboratories is a multimission laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000.

Funders	Funder number
U.S. Department of Energy
Lockheed Martin Corporation
Office of Energy Efficiency and Renewable Energy	DE-EE0028306
National Nuclear Security Administration	DE-AC04-94AL85000

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title = "MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework",

abstract = "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 Gr{\"a}tzel-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. Continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies. (Figure Presented).",

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AU - Spoerke, Erik D.

AU - Small, Leo J.

AU - Foster, Michael E.

AU - Wheeler, Jill

AU - Ullman, Andrew M.

AU - Stavila, Vitalie

AU - Rodriguez, Mark

AU - Allendorf, Mark D.

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N2 - 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. Continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies. (Figure Presented).

AB - 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. Continued refinement of highly versatile MOF structure and chemistry holds promise for dramatic improvements in emerging photovoltaic technologies. (Figure Presented).

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MOF-Sensitized Solar Cells Enabled by a Pillared Porphyrin Framework

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