Energy Dissipation at the Nanoscale: from graphene to phase-change materials

By Eric Pop

Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL

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Abstract

Energy dissipation and conversion are important for the design of low-power electronics and energy-conversion systems. This is also a rich domain for both fundamental discoveries as well as technological advances. This talk will present recent highlights from our studies of dissipation in novel nanoelectronics based on graphene and phase-change materials. We have investigated both Joule heating and Peltier cooling in graphene electronics, and found that the latter could be tuned to partially remove the heat generated during operation. We have also examined the fundamental limits of data storage based on phase-change materials (rather than charge or spin), and demonstrated two orders of magnitude reduction of energy per bit. The results suggest new directions to improve nanoscale energy efficiency towards fundamental limits, through the design of geometry and materials.

Bio

Eric Pop Eric Pop is an Assistant Professor of Electrical and Computer Engineering (ECE) at UIUC. His research interests lie at the intersection of nanoelectronics and nanoscale energy conversion systems. He received his Ph.D. in EE from Stanford (2005), the M.Eng./B.S. in EE and B.S. in Physics from MIT. Prior to joining UIUC he did post-doctoral work at Stanford and worked at Intel on non-volatile memory. He received the Presidential Early Career (PECASE) Award from the White House (2010) and Young Investigator Awards from the ONR (2010), NSF (2010), AFOSR (2010) and DARPA (2008). He is an IEEE Senior member, a member of APS and MRS, and serves on the program committees of the DRC and IEDM conferences.

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Researchers should cite this work as follows:

  • Eric Pop (2011), "Energy Dissipation at the Nanoscale: from graphene to phase-change materials," http://nanohub.org/resources/12698.

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Location

Burton Morgan 121, Purdue University, West Lafayette, IN

Tags

Energy Dissipation at the Nanoscale: from graphene to phase-change materials
  • Energy Dissipation at the Nanoscale from graphene to phase-change materials 1. Energy Dissipation at the Nano… 0
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  • Where Is Urbana-Champaign? 2. Where Is Urbana-Champaign? 120.8
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  • What Motivates Us 3. What Motivates Us 164.33333333333334
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  • Electronics Use (and Waste) Much Power 4. Electronics Use (and Waste) Mu… 255.86666666666667
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  • Electronics Use (and Waste) Much Power 5. Electronics Use (and Waste) Mu… 387.36666666666667
    00:00/00:00
  • Our Work: Two Sides of the Same Coin 6. Our Work: Two Sides of the Sam… 512.66666666666663
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  • A Few Interesting “Post-Silicon” Materials 7. A Few Interesting “Post-Sili… 567.86666666666667
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  • Silicon vs. Novel Nanomaterials 8. Silicon vs. Novel Nanomaterial… 657.13333333333333
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  • Abundance of Silicon vs. Other Nanomaterials 9. Abundance of Silicon vs. Other… 734.43333333333328
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  • Outline of Talk 10. Outline of Talk 802.86666666666667
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  • Obtaining Graphene 11. Obtaining Graphene 828.7
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  • Transport in Graphene on SiO2 12. Transport in Graphene on SiO2 897.1
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  • Graphene Mobility – Where Does it Stand? 13. Graphene Mobility – Where Do… 1121.2666666666667
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  • Energy Dissipation in Graphene Transistors 14. Energy Dissipation in Graphene… 1257.6666666666667
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  • IR Thermal Imaging of Graphene Transistors 15. IR Thermal Imaging of Graphene… 1318.5666666666666
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  • Simulation: Ambipolar + Poisson + Heating 16. Simulation: Ambipolar + Poisso… 1472.9666666666667
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  • Dissipation at Graphene Contacts 17. Dissipation at Graphene Contac… 1530.2666666666667
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  • Understanding Contact Temperature 18. Understanding Contact Temperat… 1619.8333333333333
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  • Engineer Self-Cooling in Future Devices 19. Engineer Self-Cooling in Futur… 1870.4666666666667
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  • Dissipation at Graphene Contacts 20. Dissipation at Graphene Contac… 1899.5666666666666
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  • Engineer Self-Cooling in Future Devices 21. Engineer Self-Cooling in Futur… 1949.7
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  • Outline of Talk 22. Outline of Talk 2068.4666666666667
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  • High-Field Transport in Graphene Nanoribbons 23. High-Field Transport in Graphe… 2112.0333333333333
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  • GNR Peak Current and Thermal Conductivity 24. GNR Peak Current and Thermal C… 2219.4666666666667
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  • GNR Peak Current and Thermal Conductivity 25. GNR Peak Current and Thermal C… 2303.1
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  • Where Do We Go From Here? 26. Where Do We Go From Here? 2429.8333333333335
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  • GNR Peak Current and Thermal Conductivity 27. GNR Peak Current and Thermal C… 2437.3
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  • Where Do We Go From Here? 28. Where Do We Go From Here? 2502.0666666666666
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  • Where Do We Go From Here? 29. Where Do We Go From Here? 2580.6
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  • Outline of Talk 30. Outline of Talk 2653.4
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  • Why Power Dissipation in Memory? 31. Why Power Dissipation in Memor… 2662
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  • Phase-Change Memory (PCM) Scaling 32. Phase-Change Memory (PCM) Scal… 2766.9333333333334
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  • Phase-Change Memory (PCM) Materials 33. Phase-Change Memory (PCM) Mate… 2810.1
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  • Phase-Change Memory (PCM) Materials 34. Phase-Change Memory (PCM) Mate… 2849.1333333333332
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  • PCM Device with Nanotube Electrodes 35. PCM Device with Nanotube Elect… 2899.6666666666665
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  • Scaling of Nanotube-PCM Devices 36. Scaling of Nanotube-PCM Device… 2985.1666666666665
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  • COMSOL 3D Finite Element Simulations 37. COMSOL 3D Finite Element Simul… 3045.6333333333332
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  • Outline of Talk 38. Outline of Talk 3081.2
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  • Self-Aligned GST Nanowire with CNT Electrodes 39. Self-Aligned GST Nanowire with… 3084.9666666666667
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  • Operation of Self-Aligned PCM Device 40. Operation of Self-Aligned PCM … 3149.9
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  • Where This Work Fits In 41. Where This Work Fits In 3196.7
    00:00/00:00
  • What Is 10,000x Electrical Power Reduction? 42. What Is 10,000x Electrical Pow… 3315.1666666666665
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  • What Is 10,000x Electrical Power Reduction? 43. What Is 10,000x Electrical Pow… 3368.5666666666666
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  • Energy in Nano-Electronics: Summary 44. Energy in Nano-Electronics: Su… 3402.9
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  • Acknowledgements 45. Acknowledgements 3462.4
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  • Energy in Nano-Electronics: Summary 46. Energy in Nano-Electronics: Su… 3491.7
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  • Where This Work Fits In 47. Where This Work Fits In 3951.2
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