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Towards the development of calcium ion batteries
(Massachusetts Institute of Technology, 2014)
A novel system for the study of calcium-ion electroactive materials has been developed, characterized, and utilized to screen a number of candidate calcium intercalation compounds. The system is comprised of a dried, ...
How beetles explode : new insights into the operation, structure, and materials of bombardier beetle (Brachinini) defensive glands
(Massachusetts Institute of Technology, 2015)
Bombardier beetles possess one of the most remarkable defense mechanisms in nature, using explosions inside their bodies to synthesize and eject a hot, noxious spray at attackers. The chemical reactions that enable this ...
Exchange bias in patterned nanostructures
(Massachusetts Institute of Technology, 2016)
Exchange bias between a ferromagnet (FM) and antiferromagnet (AFM), which is utilized to pin the magnetization of a FM into a fixed direction in space, is essential in commonly used electronic components such as magnetic ...
Virus-enabled synthesis and 2D/3D assembly of nanowire networks
(Massachusetts Institute of Technology, 2013)
Dense networks of high aspect ratio nanowires can provide important functionality to electronic devices through a unique combination of electronic and structural properties including high conductivity, high surface area, ...
Spectroscopic observation of materials under dynamic conditions
(Massachusetts Institute of Technology, 2010)
A new method is developed for direct real-time visualization of shock generation, propagation, and convergence in a sample. The approach opens up new possibilities for controlling the shock parameters and allows one to ...
Integration of GaAsP alloys on SiGe virtual substrates for Si-based dual-junction solar cells
(Massachusetts Institute of Technology, 2013)
Integration of III-V compound semiconductors with silicon is an area that has generated a lot of interest because III-V materials and Si are best suited for different types of devices. Monolithic integration enables the ...
Directed self-assembly of block copolymers with functional materials : a study of nanocomposite thin film fabrication on graphoepitaxial templates
(Massachusetts Institute of Technology, 2017)
Block copolymers (BCPs) are a class of soft materials consisting of two (or more) different chains joint together by covalent bond. This special chemical structure leads to microphase separation and consequently a variety ...
Magnetothermal multiplexing for biomedical applications
(Massachusetts Institute of Technology, 2017)
Research on biomedical applications of magnetic nanoparticles (MNPs) has increasingly sought to demonstrate noninvasive actuation of cellular processes and material responses using heat dissipated in the presence of an ...
Understanding defects in germanium and silicon for optoelectronic energy conversion
(Massachusetts Institute of Technology, 2016)
This thesis explores bulk and interface defects in germanium (Ge) and silicon (Si) with a focus on understanding the impact defect related bandgap states will have on optoelectronic applications. Optoelectronic devices are ...
Fabrication of capacitors based on silicon nanowire arrays generated by metal-assisted wet chemical etching
(Massachusetts Institute of Technology, 2016)
Capacitors with high capacitance density (capacitance per footprint area) have potential applications in autonomous microsystems that harvest energy from the environment, as they can store and release energy at high rates. ...