SF Bay Area Nanotechnology Council

IEEE
  • IEEE San Francisco Bay Area Nanotechnology Council is the nanotechnology leader for the IEEE's San Francisco / Oakland Eastbay / Santa Clara Valley Joint Section.

    Regular events include a monthly lunch presentation (typically the 3rd Tuesday) and annual symposiums.

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October 16, 2012 Noon-1PM
TI Auditorium E-1
2900 Semiconductor Drive. Santa Clara, CA

TITLE: Novel Thermal Interface Materials for 3D Chip Stacks

SPEAKER: Srilakshmi Lingamneni,
Ph.D Candidate, Stanford Nanoheat Laboratory, Stanford University

ABSTRACT:

This talk will present an overview of the broad spectrum of research work being carried out at ‘Stanford Nanoheat Laboratory’, the state of the art thermal characterization tools at our lab and the novel mechanical characterization tools that are being developed. It will discuss in detail the past work, latest developments and future directions of research in nanostructured interface materials. The talk will then explore the thermal challenges of 3D IC integration and new material requirements for thermal management in 3D packaging and discuss the novel interface materials that are being developed.

SPEAKER BIO:

Srilakshmi Lingamneni received her B.Tech in Mechanical Engineering from Indian Institute of Technology, Madras in 2008 and M.S. in Mechanical Engineering from Stanford University in 2010. She is currently pursuing Ph.D. in Mechanical Engineering at Stanford University. She was a Stanford Mechanical Engineering department teaching assistant for the academic years, 2008-2010. Her research interests include development of various thermal interface materials for thermal management in electronics, with a particular focus on materials for 3D integrated chips.

AGENDA: Registration & light lunch 11:30am. Presentation & Q/A 12:00 to 1pm

COST:FREE

PRESENTATION: Srilakshmi Lingamneni IEEE SFBA Nanotechnology council Chapter Talk.PDF


September 18, 2012, Noon-1PM
TI Auditorium E-1
2900 Semiconductor Drive. Santa Clara, CA

TITLE: Nanotechnology Enabled Redox Flow Batteries Give the Smart Grid a High IQ.

SPEAKER: (UPDATE)Bret Adams Director of business Development will replace Dr. Craig Horne, Founder and CEO EnerVault Corporation

ABSTRACT:
Megawatt scale Redox Flow Batteries (RFB) can be a safe, reliable and cost effective and clean solution to utility distributed scale energy storage. The demands of peak loading and fast EV charging are immediate applications and enabling the smart grid is on the near horizon. Nanotechnology applied to separators and chemicals is enabling this disruptive technology to be the just in time disruptive solution to a major energy storage problem. Sunnyvale’s EnerVault Corporation has exploited this and is bringing fully integrated modular systems to provide an economical solution.

SPEAKER BIO:
Craig Horne is a renewable energy technology and start-up veteran in areas of, fuel cells, batteries, telecom, and nanotechnology. With more than 20 years of experience working with renewable energy technologies overlapping with 9 years in nanotechnology the majority of his career has been spent in ground-level projects (synchrotron radiation spectroscopy of Li-ion materials, nanoscale material based Li-ion components, nanoscale material and processes for telecom components, disruptive manufacturing of fuel cell stacks, new system designs for flow batteries). Among others he’s worked at nanotechnology firms like Nanogram Corporation, Kainos and NeoPhotonics Corporation. He has 19 US patents awarded, over 14 US applications pending, and numerous international patents.
He received his Ph.D. in Material Science and Engineering, Univeristy of California Berkeley


 

August 21, 2012 Noon-1PM
Texas Instruments Auditorium E-1
2900 Semiconductor Drive. Santa Clara, CA

TITLE: Broadband light management using low-Q whispering gallery modes in spherical nanoshells

SPEAKER: Jie Yao, Post-doctoral Researcher, Materials Science and Engineering, Stanford

 

ABSTRACT:

Light trapping across a wide band of frequencies is important for applications such as solar cells and photodetectors. Here, we demonstrate a new approach to light management by forming whispering-gallery resonant modes inside a spherical nanoshell structure. The geometry of the structure gives rise to a low quality-factor, facilitating the coupling of light into the resonant modes and substantial enhancement of the light path in the active material, thus dramatically improving absorption. Using nanocrystalline silicon (nc-Si) as a model system, we observe broadband absorption enhancement across a large range of incident angles. The absorption of a single layer of 50-nm-thick spherical nanoshells is equivalent to a 1-μm-thick planar nc-Si film. This light-trapping structure could enable the manufacturing of high-throughput ultra-thin film absorbers in a variety of material systems that demand shorter deposition time, less material usage and transferability to flexible substrates.

SPEAKER BIO:

Dr. Jie Yao is a Post-doctoral Researcher in the Materials Science and Engineering Department at Stanford University. He works within the group of Professor Yi Cui which investigates a broad range of nanoscale properties including electronic, photonic, electrochemical, mechanical, catalytic and interfacial properties. His research interests include light management for energy conversion, material optical property tuning, metamaterials and optical nano-cavities. He has demonstrated non-resonant negative refraction in metamaterials, which is a milestone in the exploration of transformational optics. He also designed and demonstrated the world’s smallest three-dimensional indefinite optical cavities. He completed his PhD at UC Berkeley, his MS at the University of Southern California and BS at Nanjing University, China.

AGENDA: Registration & light lunch 11:30am. Presentation & Q/A 12:00 to 1pm

COST: IEEE Members and Students $5. Non-Members $10

 

 


 

July 17, 2012 Noon-1PM
Texas Instruments Auditorium E-1
2900 Semiconductor Drive. Santa Clara, CA

TITLE:
Nanoscale Chemical Imaging of Energy Materials with Full-field Transmission X-ray Microscopy

SPEAKER:
Dr. Joy C. Andrews, SLAC National Accelerator Laboratory

ABSTRACT:

Correlation of chemistry and morphology in hierarchical functional materials such as battery electrodes, fuel cells and catalysts can drive design of more efficient materials. Full-field nanoscale chemical imaging has been used to collect single-pixel XANES (~1E6 spectra per energy stack; acquired in minutes) at down to 30 nm resolution. The full-field transmission X-ray microscope (TXM) on beam line 6-2 at the Stanford Synchrotron Radiation Lightsource combines large field of view (tens to hundreds of microns) with high resolution imaging from ~4.5 to 14 keV (ΔE/E < 1E-4), for XANES chemical speciation. Custom software (TXM Wizard; available free for public use) is used to produce chemical and morphological maps of various composite systems in 2D and 3D. In situ and ex situ results from full-field XANES microscopy of Li-ion battery electrodes and other catalytic materials, rendering insight into performance and structure, will be presented.

SPEAKER BIO:

Dr. Joy C. Andrews is a Staff Scientist, Stanford Synchrotron Radiation Lightsource, SLAC. She performs interdisciplinary research in nanoscience on energy-related materials, correlating nanostructure and chemical state ex situ, in situ and in operando, for improvement of performance and uptake and transformation of metals and nanoparticles in environmental samples. She also studies speciation of heavy metals using X-ray absorption spectroscopy (XAS), scanning x-ray fluorescence and full field hard x-ray transmission microscopy as well as other methods. At SLAC, she leads the development of spectroscopic imaging, and in situ imaging of energy materials and catalytic systems. She obtained her PhD from the University of California Berkeley. Prior to SLAC, she was a full professor at the Department of Chemistry and Biochemistry, CSU East Bay, CA and is currently the Professor Emeritus.


January 24, 2012 Noon-1PM
Texas Instruments Auditorium E-1
2900 Semiconductor Drive. Santa Clara, CA

TITLE: Implementing Smell and Taste with Nano-sensors

SPEAKER: Zhiyong Li / HP Labs

ABSTRACT:

The well-being of people and a safe, secure and sustainable world around them demand ultra-sensitive “smell and taste” equivalent sensory to connect the physical world and people through innovative technologies. Inexpensive and real-time detection, identification and even quantification of the trace amount of unusual molecules, in the water you drink, in the food you eat, in the air you breathe, or even disease indicator in your body, will be an indispensible part of the future world. I will describe a novel nanosensor platform that can lead to molecular sensing with high performance, and ease of use, in a palm-size system, at a low cost. The technology is based on rationally designed nanoplasmonic structures to reveal the unique fingerprint of a molecule, also widely known as Surface Enhanced Raman Spectroscopy (SERS). I will show the demonstration of such technology for food contaminant detection, and illustrate the potential for applications ranging from food safety, water and environmental monitoring, anti-counterfeiting, drug discovery and quality assurance, homeland security, healthcare needs and other emerging markets.

SPEAKER BIO:

Dr. Zhiyong Li is the Principle Investigator of SERS project jointly funded by DARPA and HP. Dr. Li leads a team of world-class researchers to develop nanosensors that will define the physical limit of the sensitivity and enable the future implementation of smell and taste sensory for environmental, health, food, homeland security, and safety monitoring applications. His team is part of the big bet research at HP labs with the vision to deploy billions or even trillions of inexpensive, ultrasensitive sensor nodes around the earth, also known as Central Nervous System for the Earth (CeNSE). Dr. Li joined HP since 2001 and pioneered the nanosensor research at HP Labs. Dr. Li graduated with a PhD degree in Chemistry from University of Notre Dame, 2001, a MS degree in Inorganic Materials from Chinese Academy of Science, 1996, and a BS degree in Chemistry from University of Science and Technology of China, 1993. He has published more than 60 peer-reviewed journal articles, and has more than 40 US patents granted.

PRESENTATION: 2012-Jan-Zhiyong_Li-IEEE_talk_012412-ForPosting.PDF