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Atomic engineering on 2D materials using electron irradiation and chemical protection
(Massachusetts Institute of Technology, 2020)
Controlling the exact atomic structure is an ultimate form of engineering. Atomic manipulation and atom-by-atom assembly can create functional structures that are hard to synthesize chemically. Defects with one- or ...
Probabilistic and extremal behavior in graphs and matrices
(Massachusetts Institute of Technology, 2020)
This thesis deals with several related questions in probabilistic and extremal graph theory and discrete random matrix theory. First, for any bipartite graph H containing a cycle, we prove an upper bound of [mathematical ...
Solid-state nuclear magnetic resonance investigations of complex plant biomaterials : plant cell walls and pine sporopollenin
(Massachusetts Institute of Technology, 2020)
Plant cell walls offer support and protection to plant cells allowing land plants to thrive all over the world. Growing plant cell wall is a complex system mainly consisting of insoluble polysaccharides: cellulose, ...
Accelerated development of photovoltaics by physics-informed machine learning
(Massachusetts Institute of Technology, 2020)
Terawatt-scale deployment of photovoltaics (PV) is required to mitigate the most severe effects of climate change. Despite sustained growth in PV installations, technoeconomic models suggest that further technical advances ...
Theory and applications for sulfur chemistry : hydrogen from hydrogen sulfide
(Massachusetts Institute of Technology, 2020)
In this thesis, I explore the chemistry of reacting sulfur species computationally and experimentally. The computational work centers around creating the capability to automatically predict the thermochemical properties ...
Instrument systematics calibration and performance validation for high precision photometry missions
(Massachusetts Institute of Technology, 2020)
Exoplanet detection using planetary transits requires very high precision photometry. The systematic noise requirement on photometry missions is limited to tens of parts per million over few hour timescales. The present ...
Spectroscopy and dynamics of high orbital angular momentum Rydberg states
(Massachusetts Institute of Technology, 2020)
Rydberg states of molecules with high orbital angular momentum (l >/~ 3) are a unique class of electronic states. These high-l Rydberg states escape the rapid non-radiative decay by predissociation, which is typical of the ...
Essays in environmental market design
(Massachusetts Institute of Technology, 2020)
This thesis consists of three essays on the design of environmental markets in the face of fast-approaching climate change. The first essay studies a water market used by irrigated farms inhabiting a connected river network ...
Integrated photonic devices for spectroscopic chemical detection
(Massachusetts Institute of Technology, 2020)
Chemical sensing systems realized with photonic components integrated on traditional semiconductor substrates have emerged as a promising technology for remote sensing applications that require low cost, low power consumption, ...
Hardware-aware efficient deep neural network design
(Massachusetts Institute of Technology, 2020)
Deep neural networks (DNNs) deliver best-in-class accuracy on various artificial intelligence applications. However, the high accuracy comes at the cost that the computational complexity of DNNs is much higher than that ...