1. LLNL-PRES-565112This work was performed under the auspices of theU.S. Department of Energy by Lawrence LivermoreNational Laboratory under contract DE-AC52-07NA27344.Lawrence Livermore National Security, LLCIda C. ShumBusiness Development Executive

2. Micro energy harvesting systems generateelectrical energy from various sources such as: Solar Vibration Thermal Human Movements Existing Energy Harvesting Techniques Photovoltaic Thermoelectric Piezoelectric ElectrostaticLawrence Livermore National Laboratory LLNL-PRES-5651122 3. Key Advantage: Conversion of chemical energyinto electrical energy LLNL has fabricated anenergy nanogenerator usingone-dimensionalsemiconductor nanowiresLawrence Livermore National Laboratory LLNL-PRES-5651123 4. Lawrence Livermore National Laboratory LLNL-PRES-5651124 (a) Vertically alignedsingle-crystalline ZnOnanowires (b) Randomly alignedboron-doped siliconnanowiresSource: Advanced MaterialsVolume 23, Issue 1, pages 117121,January 4, 2011 5. Lawrence Livermore National Laboratory LLNL-PRES-5651125 6. Sensors Counterterrorism contraband sensor programs Ultrasensitive detection of low-concentration gas leaks(pipeline protection) Wireless sensor networks that monitor structural integrity Military Detection of chemical and biological weapons Medical Pacemakers, insulin control systems Energy Piezoelectric voltage and current outputs powering cell phones,electronic devicesLawrence Livermore National Laboratory LLNL-PRES-5651126 7. Batteryless sensors harvest environmentalenergy using a semiconducting nanowire array Used to detect chemical and biological agents Problem: Current sensing platforms require an external powersource (e.g. battery) to operate Larger dimensions Solution: Harvest energy from the surrounding environmentLawrence Livermore National Laboratory LLNL-PRES-5651127 8. Converts chemical energy into electrical energy External power source (such as a battery) iseliminated, reducing bulk and weight Nanosensor responds selectively to a variety oforganic molecules (e.g. ethanol, etc.) Yields response times of faster than 1 second Heat from surrounding environment can beharvested to power the detectorLawrence Livermore National Laboratory LLNL-PRES-5651128 9. We are looking for Partners: Collaborative Research &Development License Patent Coverage: WIPO Patent ApplicationWO2011/050307A3 Nanodevices forGenerating Power from Molecules andBatteryless Sensing US Patent Application US2011/0153535A1Matrix-Assisted Energy Conversion inNanostructured Piezoelectric ArraysLawrence Livermore National Laboratory LLNL-PRES-5651129 10. Lawrence Livermore National Laboratory LLNL-PRES-56511210Ida Shumshum3@llnl.gov