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Metal oxide-encapsulated dye-sensitized photoanodes for dye-sensitized solar cells

Patent ·
OSTI ID:1234500
;

Dye-sensitized semiconducting metal oxide films for photoanodes, photoanodes incorporating the films and DSCs incorporating the photoanodes are provided. Also provided are methods for making the dye sensitized semiconducting metal oxide films. The methods of making the films are based on the deposition of an encapsulating layer of a semiconducting metal oxide around the molecular anchoring groups of photosensitizing dye molecules adsorbed to a porous film of the semiconducting metal oxide. The encapsulating layer of semiconducting metal oxide is formed in such a way that it is not coated over the chromophores of the adsorbed dye molecules and, therefore, allows the dye molecules to remain electrochemically addressable.

Research Organization:
Northwestern University, Evanston, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0001059
Assignee:
Northwestern University
Patent Number(s):
9,236,194
Application Number:
13/767,270
OSTI ID:
1234500
Country of Publication:
United States
Language:
English

References (11)

The band gap of ultrathin amorphous and well-ordered Al2O3 films on CoAl(100) measured by scanning tunneling spectroscopy journal April 2009
Enhanced performance of dye-sensitized solar cells by an Al2O3 charge-recombination barrier formed by low-temperature atomic layer deposition journal January 2009
Water-Based Electrolytes for Dye-Sensitized Solar Cells journal August 2010
Surface Modification of SnO 2 Photoelectrodes in Dye-Sensitized Solar Cells: Significant Improvements in Photovoltage via Al 2 O 3 Atomic Layer Deposition journal April 2010
Suppression of Forward Electron Injection from Ru(dcbpy) 2 (NCS) 2 to Nanocrystalline TiO 2 Film As a Result of an Interfacial Al 2 O 3 Barrier Layer Prepared with Atomic Layer Deposition journal December 2009
Performance Enhancement and Limitations of Cobalt Bipyridyl Redox Shuttles in Dye-Sensitized Solar Cells journal July 2009
Effect of an Ultrathin TiO2 Layer Coated on Submicrometer-Sized ZnO Nanocrystallite Aggregates by Atomic Layer Deposition on the Performance of Dye-Sensitized Solar Cells journal April 2010
Stabilization of [Ru(bpy) 2 (4,4′-(PO 3 H 2 )bpy)] 2+ on Mesoporous TiO 2 with Atomic Layer Deposition of Al 2 O 3 journal December 2012
Influence of pyridine ligand nature and the corresponding ruthenium(ii) dye molecular structure on the performance of dye-sensitized solar cells journal January 2009
Effect of atomic layer deposited ultra thin HfO2 and Al2O3 interfacial layers on the performance of dye sensitized solar cells journal March 2010
Glass-Encapsulated Light Harvesters: More Efficient Dye-Sensitized Solar Cells by Deposition of Self-Aligned, Conformal, and Self-Limited Silica Layers journal May 2012

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