Message to members of the APS Division of Materials Physics
Approved by Robert Nemanich, DMP Secretary/Treasurer
Dear DMP Membership:

Deadline: September 10, 2015

This email requests nominations for invited speakers for a special DMP Focus Topic on Perovskite Photovoltaics for the APS March Meeting 2016 (Baltimore, Maryland, March 14-18, 2016). The Focus Topic description is included below.

A Focus Topic generally consists of a series of sessions, each of which is typically seeded with one invited talk, the remainder of the session being composed of contributed presentations. In suggesting invited speakers please keep in mind that speakers who gave an invited talk at the previous March Meetings are ineligible.

Invited speaker nominations should be emailed directly to the organizers by September 10, 2015.

The nominations should include:
  • Nominator name: affiliation, address, email
  • Nominated speaker: name, affiliation, address, email
  • Talk Title (240 character limit):
  • Justification (1500 character limit):
  • Justification Reference (240 character limit);
7.1.5. Organometal Halide Perovskites; Photovoltaics and beyond [also 12.1.11]
Mercouri G. Kanatzidis (Northwestern)
 Z. Valy Vardeny (University of Utah)

The field of thin-film photovoltaics (PV) has been recently enriched by the introduction of the remarkable class of hybrid organic-inorganic semiconductors, such as lead halide perovskites (for example CH3NH3PbI3), as absorber materials which allow low-cost synthesis and fabrication of PV solar cells with efficiencies exceeding 20%. The physicochemical attributes of these compounds have lead to their rapid emergence as serious candidates for cheap PV solar cells, and has raised immense interest in their fundamental physical properties. Understanding the exact impact of the crystal structure and composition on the optoelectronic properties of the hybrid perovskites is the focus of intense research at the present time. In crystalline materials, exciton diffusion length of the order of hundreds of micrometers and carrier mobilities exceeding 1000 cm2/volt*sec have been reported. Also their relatively strong photoluminescence emission has lead to several laser applications, and fabrication of efficient light emitting diodes. These compounds show several structural phase transitions at various temperatures that may complicate the interpretation of the physical properties and/or modify their optoelectronic properties driven by substantial changes in the exciton binding energy. In addition the strong spin-orbit coupling of these compounds have lead to interesting magnetic properties, and the dipole moment associated with the organic molecule in the unit cell may lead to ferroelectricity.
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