Perovskite PV

Hybrid organic-inorganic perovskite materials have recently garnered a great deal of interest for their potential application as solar absorber materials in photovoltaic devices.  The prototypical material is methylammonium lead iodide (CH3NH3)PbI3, abbreviated MAPbI3 or MAPI.  My group is interested in both the fundamental chemistry involved in synthesizing these materials as well as their detailed structural operando characterization and degradation mechanisms.  A great deal of this work is done in collabration with other researchers at SLAC, Stanford, and at NREL.  

Our efforts are focused on detailed characterization, we are very open to collaboration with other groups working in this area.  Please feel free to contact us if you are interested in discussing potential areas for collaboration.

 

Operando Studies:

This work was developed in collaboration with Laura Schelhas, Chris Tassone, Doug Van Campen, and Mike Toney at SLAC and Jeff Christians, Joey Luther, and Joe Berry at NREL.

We have developed a chamber which allows for operation of a working photovoltaic device during x-ray diffraction measurements.  We can additionally control the temperature inside the chamber to monitor any changes to device performance or material structure as a function of temperature.  This is especially interesting in this material system because there is a phase transition at ~60°C, well within the expected operating conditions in real world applications.