Filtering by
- All Subjects: Chamber music
- All Subjects: Electrical Engineering
- All Subjects: Creative Project
My Honors Thesis was a creative project in which I created a new course, The Road to Women’s Economic Empowerment (SGS 494). This course explores how different societal features affect the agency and economic development of women worldwide. We begin by defining women’s agency and conceptualizing the barriers to women’s economic empowerment. Barriers include gender norms, health conditions, degradation of environmental and/or natural capital, discrimination, and skewness in political representation. Each barrier is given further investigation through case studies in a variety of countries. We end the course by looking at policies and laws in different countries, evaluating their success and failures to improve women’s economic and social autonomy. This is an online course which includes video interviews and podcasts from scholars and activists, a quiz every other week, video posts which enable discussion of material with peers, and a final project to apply the concepts introduced in class.
In the first part, the defect states of amorphous silicon (a-Si) and a-Si:H material are studied using density functional theory (DFT). I first employ simulated annealing using molecular dynamics (MD) to create stable configurations of a-Si:H, and then analyze the atomic and electronic structure to investigate which structural defects interact with H, and how the electronic structure changes with H addition. I find that H atoms decrease the density of mid-gap states and increase the band gap of a-Si by binding to Si atoms with strained bonds. My results also indicate that Si atoms with strained bonds creates high-localized orbitals in the mobility gap of a-Si, and the binding of H atoms to them can dramatically decrease their degree of localization.
In the second part, I explore the effect of the H binding configuration on the electronic properties of a-Si:H/c-Si heterostructure using density functional theory studies of models of the interface between a-Si:H and c-Si. The electronic properties from DFT show that depending on the energy difference between configurations, the electronic properties are sensitive to the H binding configurations.
In the last part, I examine the electronic structure of GaP/Si(001) heterojunctions and the effect of hydrogen H passivation at the interface in comparison to interface mixing, through DFT calculations. My calculations show that due to the heterovalent mismatch nature of the GaP/Si interface, there is a high density of localized states at the abrupt GaP/Si interface due to the excess charge associated with heterovalent bonding, as reported elsewhere. I find that the addition of H leads to additional bonding at the interface which mitigates the charge imbalance, and greatly reduces the density of localized states, leading to a nearly ideal heterojunction.
This project was an exploratory take on outreach in the life sciences - looking into the existing literature and practices and formulating a proof of concept for future outreach with synthesizes my findings. The research culminated in the creation of an insect guide for the novice observer, which reads as a modern take on the dichotomous key and allows amateur insect observers to develop some skills of identification with relatively little entomological knowledge.