A5025761264- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Molecular Junctions and Nanostructures
- Organic Light-Emitting Diodes Research
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- solar cell performance optimization
- Silicon and Solar Cell Technologies
- Machine Learning in Materials Science
- Advanced Semiconductor Detectors and Materials
- Chalcogenide Semiconductor Thin Films
- Advanced Thermoelectric Materials and Devices
The University of Texas at Dallas
2019-2023
Tarleton State University
2015
Abstract Trigonal-Tellurium (t-Te) has recently garnered interest in the nanoelectronics community because of its measured high hole mobility and low-temperature growth. However, a drawback tellurium is small bulk bandgap (0.33 eV), giving rise to large leakage currents transistor prototypes. We analyze increase electronic due quantum confinement compare relative stability various t-Te nanostructures (t-Te nanowires layers t-Te) using first-principles simulations. found that (≤4 nm 2 )...
Trigonal-Tellurium (t-Te), a van der Waals material, recently garnered interest to the nanoelectronics community because high hole mobility, bandgap, and low temperature growth have all been observed in nanostructures. We analyze various t-Te nanostructures (nanowires layers) using first principles simulations. compare bandgap variation relative stability among different shapes sizes of Te determine that nanowires host higher bandgaps are preferentially grown, rather than layers t-Te. also...
Although cyclic voltammetry (CV) measurements in solution have been widely used to determine the highest occupied molecular orbital energy (EHOMO ) of semiconducting organic molecules, an understanding experimentally observed discrepancies due solvent is lacking. To explain these differences, we investigate effects on EHOMO by combining density functional theory and dynamics calculations for four donor molecules with a common backbone moiety. We compare experimental values calculated...
Experimental results of organic solar cells with low donor concentrations using small molecule donors have shown significantly lower fill factors (FFs) compared to dilute-donor (DDSCs) polymer donors. We perform experiments and kinetic Monte Carlo simulations, understand the observed FF discrepancy how can be improved. Our reveal that DDSCs collect holes from region active layer near anode whereas a deeper volume inside layer. This extended collection is facilitated by morphology chains...