Wisconsin Alumni Research Foundation

Technology

Microcavity Method for Single Molecule Spectroscopy

Single molecule spectroscopy and microscopy – a popular tool for biological, biophysical and chemical characterization – generally requires the use of fluorescent molecules. Researchers at UW–M...
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Randall Goldsmith, Kevin Heylman | P140153US03

Technology

Zinc Oxide Thin Films Have Higher Electron Mobility

Zinc oxide (ZnO) is an inorganic semiconductor with applications in large area photovoltaics and transparent electronics. Producing zinc oxide thin films with excellent electronic properties is challe...
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Paul Evans, Josef Spalenka | P130004US02

Technology

Strain-Tunable Light Emitting Diodes Using Germanium

Germanium (Ge), a group-IV semiconductor material, is crucial to many established and potential technologies. In optoelectronics, Ge has been used as a photodetector material for on-chip data distribu...
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Max Lagally, Jose Sanchez Perez | P140041US01

Technology

Tuning Optical Microcavities

A whispering gallery mode (WGM) is a type of electromagnetic wave that travels around a concave surface. Such waves can propagate at the edge of a very small structure called an optical microcavity. W...
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Randall Goldsmith, Kevin Heylman | P140153US01

Technology

New Surface-Modifying Film for BCP Formation

Block copolymers (BCPs) self-assemble into well-defined, highly regular and dense nanostructures. Such BCP arrays are useful for fabricating electronic devices like magnetic storage media, quantum dot...
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Padma Gopalan, Eungnak Han, Myungwoong Kim | P130124US01

Technology

Degradable Neutral Layer for BCP Lithography

The lithographic process is one of the most powerful technologies of the digital electronics era. Lithography allows hundreds of millions of components to be fabricated on a single chip with pattern f...
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Padma Gopalan, Daniel Sweat, Jonathan Choi, Myungwoong Kim | P130174US01

Technology

Masks for Growing Nanopatterned Polymer Brushes

Polymer brushes are a broad class of materials made of polymer chains tethered at one end to a substrate. These brushes are able to tune and modify surface properties like bioadhesion and wettability....
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Padma Gopalan, Daniel Sweat, Myungwoong Kim, Eungnak Han | P130118US01

Technology

Patterned Graphene for Field Effect Transistors

Interest in graphene has surged due to its outstanding electrical properties. Graphene is a two-dimensional, carbon-based material with high tensile strength, stiffness, optical transparency and therm...
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Michael Arnold, Padma Gopalan, Nathaniel Safron, Myungwoong Kim, Jonathan Choi | P110242US01

Technology

Flexible Thin-Film Transistors Are Doped and Strained

Fast, flexible electronics operating at radio frequencies (greater than 1 GHz) are attractive because of their versatility, power savings and wide applicability. Uses include wireless and high-speed c...
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Zhenqiang Ma, Max Lagally, Jung-Hun Seo | P130145US01

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