California Institute of Technology

United States of America As Represented by the Administrator of Nasa

Etamota Corporation

Tribo Labs

Caelux Corporation

Eric W Wong

Brian D Hunt

Michael J Bronikowski

Carlos G Camara

James Hartman

Brian Y Lim

Larry W Epp

Mark G Valentine

Anupama B Kaul

Chenyu Chou

Tianqing He

Jing-Shun Huang

John Iannelli

Jeong Chul Lee

Liam Sohngen

Richard L Baron

Fabiano A Oyafuso

Paul Von Allmen

Justen Harper

Andy Kotowski

German Om

Dan Cuadra

The present disclosure may provide semiconductor perovskite layers and method of making thereof. In some cases, the perovskite layer may comprise a composition of MAFACsPbX. MA may be methylammonium, FA may be formamidinium, n1, n2, and n3 may independently be greater than 0 and less than 1, and n1+n2+n3 may equal 1.

Methods of making semiconductor perovskite layers and compositions thereof

A handheld XRF device having a shutter including a calibration material. An automatic calibration sequence may be performed with the shutter in the closed position.

X-ray fluorescence device calibration

A vertical device geometry for a carbon-nanotube-based field effect transistor has one or multiple carbon nanotubes formed in a trench.

Edge-contacted vertical carbon nanotube transistor

A method of making a microfluidic device is provided. The method features patterning a permeable wall on a substrate, and surrounding the permeable wall with a solid, non-permeable boundary structure to establish a microfluidic channel having a cross-sectional dimension less than 5,000 microns and a cross-sectional area at least partially filled with the permeable wall so that fluid flowing through the microfluidic channel at least partially passes through the permeable wall.

Microfluidic device, and related methods

Methods and devices for spectroscopic identification of molecules using nanoscale wires are disclosed. According to one of the methods, nanoscale wires are provided, electrons are injected into the nanoscale wire; and inelastic electron scattering is measured via excitation of low-lying vibrational energy levels of molecules bound to the nanoscale wire.

Nanowire electron scattering spectroscopy

Switches having an in situ grown carbon nanotube as an element thereof, and methods of fabricating such switches. A carbon nanotube is grown in situ in mechanical connection with a conductive substrate, such as a heavily doped silicon wafer or an SOI wafer. The carbon nanotube is electrically connected at one location to a terminal. At another location of the carbon nanotube there is situated a pull electrode that can be used to elecrostatically displace the carbon nanotube so that it selectively makes contact with either the pull electrode or with a contact electrode. Connection to the pull electrode is sufficient to operate the device as a simple switch, while connection to a contact electrode is useful to operate the device in a manner analogous to a relay. In various embodiments, the devices disclosed are useful as at least switches for various signals, multi-state memory, computational devices, and multiplexers.

Carbon nanotube switches for memory, RF communications and sensing applications, and methods of making the same

Growing community of inventors

Los Angeles, CA, United States of America

Eric W Wong