Hybrid photoelectrodes

Established partnerships for development of Fe203, WO3 and Ti02 for use in hybrid photoelectrode designs. 

Performed initial modeling of hybrid photoelectrodes using published data for nano-structured Fe203, WO3 and Ti02 films. 

Selected Fe203 for initial hybrid photoelectrodes based on model results. 

Fabricated initial set of multi-junction a-Si Ge devices for use in preliminary hybrid photoelectrode tests (with the University of Toledo). 

Complete fabrication and testing of initial hybrid photoelectrode prototypes. 

Identify materials and design issues needed for improving hybrid photoelectrode performance. 

Design, fabricate and evaluate optimized multi-junction a-Si Ge hybrid photoelectrodes. 

Design higher-efficiency hybrid photoelectrodes using advanced CIGS tandem configurations. 

Figure 6. Photoelectrode testing jig for monitoring current under different biases (a) Cross section of design (b) Implementation with prototype hybrid photoelectrodes...

International Conference on Advanced Materials (ICAM 2001) Invited Lecture on Hybrid Photoelectrode Design. 

Hybrid photoelectrode PV-PEC tandem devices comprising a PEC photoanode or photocathode integrated with a buried single-junction PV cell. 

An alternative tandem device being developed for solar water splitting is the PV/PEC hybrid photoelectrode. In this approach, a PEC top cell is monolithically stacked with a solid-state single-junction PV back cell. Such a photoelectrode device is compatible with both the one- and two-electrode reactor configurations described in Sect. 7.2.4, and the reactor-level considerations described in that section apply. Figure 7.28 shows a device level schematic for a specific two-electrode implementation incorporating a hybrid photocathode and a separate counter electrode. Possible alternative variations include the use of a hybrid photoanode instead of the photocathode, and the integration of the counter and... 

Miller, E.L., Paluselli, D., Marsen, B., Rocheleau, R. Optimization of hybrid photoelectrodes for solar water splitting. Electrochem. Solid-State Lett. 8, A247-A249 (2005)... 

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