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Toward efficient and stable quantum dot solar cells : design and characterization
(Massachusetts Institute of Technology, 2016)
This thesis focuses on the optical and electronic properties of lead sulfide (PbS) quantum dots (QDs) for the development of QD solar cells. Near-infrared active PbS QDs composed of earth-abundant elements have emerged as ...
Optical transient grating measurements of micro/nanoscale thermal transport and mechanical properties
(Massachusetts Institute of Technology, 2015)
The laser-based transient grating technique was used to study phonon mediated thermal transport in bulk and nanostructured semiconductors and surface wave propagation in a monolayer of micron sized spheres. In the transient ...
New approaches for integrating revenue and supply chain management
(Massachusetts Institute of Technology, 2014)
First, we describe a general framework called online customer selection that describes natural settings where suppliers must actively select which customer requests to serve. Unlike traditional revenue management models ...
Nuclear weapons and foreign policy
(Massachusetts Institute of Technology, 2016)
How do states change their foreign policies when they acquire nuclear weapons? This question is central to both academic and policy debates about the consequences of nuclear proliferation, and the lengths that the United ...
An analysis of exciton transport, electron tunneling, and electromigration in nanotube and nanowire systems
(Massachusetts Institute of Technology, 2016)
Herein three systems - electromigration in metal nanowires, electron tunneling in single-molecules, and carbon nanotube photovoltaics - are investigated. In the first area, electromigrative failure of metal nanowires has ...
Local exposure and efficacy of a reservoir-based drug delivery device
(Massachusetts Institute of Technology, 2012)
Prognoses for primary or metastatic brain tumor patients have been poor, despite developments in treatment over the last twenty years. 14,000 people die each year from glioblastoma multiforme (GBM). 200,000 new cases of ...
Skeletal adaptation to reduced mechanical loading
(Massachusetts Institute of Technology, 2014)
Bone adapts its mass and architecture in response to its mechanical environment. Yet control of this process by mechanical cues is poorly understood, particularly for unloading. Defining the fundamental mechanoregulation ...
Templated self-assembly for complex pattern fabrication
(Massachusetts Institute of Technology, 2014)
The long-term goal of my Ph.D. study has been controlling the self-assembly of various materials using state-of-the-art nanofabrication techniques. Electron-beam lithography has been used for decades to generate nanoscale ...
Manufacturing and fracture of hierarchical composite materials enhanced with aligned carbon nanotubes
(Massachusetts Institute of Technology, 2014)
Hierarchical advanced composite structures comprised of both nano- and micro-scale fibers are currently being studied as next-generation materials for multifunctional aerospace applications. Carbon nanotubes (CNTs) are an ...
Three essays in financial economics
(Massachusetts Institute of Technology, 2013)
In Chapter 1, I propose that abnormal returns generated by price momentum can be explained away within the framework of an existing risk factor model such as the Fama-French three-factor model. Two features of a systematic ...