St. Albert Hall, B37
Society of Physics Students &
Department of Physics Seminar
Nanomaterials and Conjugated Polymer
Hybrid Solar Cells
Physics Department, Auburn
Inorganic crystalline semiconductor based solar cell technology
has become relatively mature and suffers from high manufacturing
cost due to the shortage of high quality silicon crystalline
wafers. As the demand for renewable and clean solar energies
rapidly grows, organic and polymeric photovoltaic materials and
technology is a very attractive option.
Compared with their inorganic counterparts, recently developed
organic and conjugated polymeric solar cells have the advantage of
lightweight, flexible and low cost for large scale roll-to-roll
manufacturing. However, organic solar cells still suffer the
drawbacks including low carrier mobility, thickness dilemma,
limited optical absorption, and rapid degradation in operation.
To alleviate some of these weaknesses in organic photovoltaic
devices, researchers worldwide are incorporating inorganic
nanostructured semiconductor materials in the application of
organic-inorganic hybrid solar cells. Due to the high
surface-to-volume ratio provided by the one-dimensional (1D)
nanostructure, ZnO nanorod arrays are considered suitable to the
application for hybrid photovoltaic devices.
This talk will provide an outline of the recent developments and
outlook of the organic-inorganic hybrid solar cells. It will then
give an overview of the low temperature synthesis of ZnO nanorods
on flexible and rigid substrates, including not only the
fabrication steps but also the analysis of the morphology, crystal
quality, and optical property of ZnO nanorods synthesized with the
solution growth process, and will discuss the reasons why
nanomaterials are desirable for organic photovoltaic applications.
Examples of recent work at Auburn University on the fabrication and
characterization of ZnO nanorods and conjugated polymer hybrid
solar cells, which has focused on the synthesis of ZnO nanorods,
will be presented.
All interested faculty and students are welcome!