Current/Recent Research Themes and Projects:

Organic and hybrid organic-inorganic solar cells

Perovskite solar cells (Collaborator: Prof. Javier Vela, Chemistry, ISU)
Defect characterization and analysis in organic solar cell materials and devices (Collaborator: Prof. Aimee Tomlinson, Chemistry, University of North Georgia)
Defect characterization and analysis in CdTe solar cells (Collaborator: Prof. Deliang Wang, University of Science and Technology, China)
Photonic platforms for thin-film solar cells (Collaborator: Prof. Kai-Ming Ho and Prof. Rana Biswas, Ames Lab; Prof. Jayeoun Kim, Electrical Engineering, ISU)
Undersanding basic physics (experiments and modeling) of organic solar cells (Collaborator: Prof. Baskar Ganapathysubramanian, Mechanical Engineering and Profs. Emily Smith and Jake Petrich, Chemistry, ISU)
Hybrid organic-silicon solar cells (Collaborator: Prof. Vikram Dalal, Electrical Engineering, ISU)
Fabrication, characterization and optimization of organic solar cells based on new conjugated polymers and small-molecules (Collaborator: Prof. Malika Jeffries-El, Chemistry, ISU)
New morphology tuning techniques in polymer based solar cells (Collaborator: Prof. Baskar Ganapathysubramian, Mechanical Engineering, ISU)
Cyber approaches for understanding of morphology and properties in organic solar cells (Collaborator: Prof. Baskar Ganapathysubramanian, Mechanical Engineering and Prof. Srikanta Tirthapura, Computer Engineering, ISU)


Novel Transparent Electrodes

(Collaborators: Prof. Kristen Constant, Prof. Kai-Ming Ho, Ames Lab)
We recently demonstrated a new metal-based architecture of transparent electrodes (Kuang et. al, Advanced Materials, 2011). Check out videos of two such electrodes fabricated on glass:
(1) Video of encapsulated transparent electrodes with metallic nanoribbons of height 300 nm and thickness 50 nm, supported by a transparent polymer grating of periodicity 2.5 micron and width 1.2 micron.
(2) Video of encapsulated transparent electrodes with metallic nanoribbons of height 1200 nm with other dimensions same as above.
Refer our publication for structural details, fabrication procedure and characterization of these electrodes.


Other electronic and optoelectronic devices:

Sensors based on integrated organic photodetector, organic LED and organic dye platform (Collaborators: Prof. Joseph Shinar and Ruth Shinar, Ames Lab and Electrical Engineering, ISU)
Memristors based on anodic titania (Collaborator: Prof. Nathan Neihart, Electrical Engineering, ISU)