Piezoelectric Piezoelectric Nanomaterial Piezoelectric - PowerPoint PPT Presentation

April 06, 2010 Piezoelectric Piezoelectric Nanomaterial Piezoelectric Piezoelectric Nanomaterial Nanomaterial- Nanomaterial- -Based -Based Based Based Transparent Flexible power Generators: Transparent Flexible power Generators: Transparent Flexible power Generators: Transparent Flexible power Generators: Harvesting Waste Energy Harvesting Waste Energy Harvesting Waste Energy Harvesting Waste Energy The 7 th Korea-US Nano Workshop Sang-Woo Kim School of Advanced Materials Science & Engineering, Center for Human Interface Nanotechnology (HINT), gy ( ), SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University

Nano Works in NESEL for Energy Harvesting & Saving Nano Works in NESEL for Energy Harvesting & Saving - Nanogenerators - Hybrid Solar Cells & LEDs - Hydrogen Storage & Sensors Tin-Oxide - Low Power-Driving Chemical Sensors ZnO Nanostructures Nanostructures Nanostructures Nanoparticle Nanowires Nanobelts Nanowalls Nanorods Nanodisks Nanoplates Nanotubes Nanotripods Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Mechanical Energy Sources for Nanogeneration Mechanical Energy Sources for Nanogeneration New Energy Scavenging from Wasted Energies ! gy g g g Self-powered devices ! Prof. Z. L. Wang Group [Adv. Funct. Mater. 18, 1 (2008)] Prof Z L Wang Group [Adv Funct Mater 18 1 (2008)] Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Self-Powered Integrated Transparent Charge Generators Self-Powered Integrated Transparent Charge Generators Flexible plastic top film p p Transparent top electrode ZnO nanorod array ZnO nanorod array Transparent bottom electrode Flexible plastic substrate Flexible plastic substrate P Adv. Mater. 21, 2185 (2009) Selected as Advances in Advance Selected as “Advances in Advance” Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Applications of Transparent Flexible Nanogenerators Applications of Transparent Flexible Nanogenerators Fingers typing: 6.9-19 mW (M), 1.2-3.2 mW (E) Power Consumption Pie oelectric Po er Generation : Self Po ered Haptic Piezoelectric Power Generation : Self-Powered Haptic Sensor Operation Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Fabrication Scheme of Fully Rollable Transparent Nanogenerators Fabrication Scheme of Fully Rollable Transparent Nanogenerators Based on Graphene Electrodes Based on Graphene Electrodes (made at Prof. Y. H. Lee’s Group, SKKU) Graphene Graphene Si Ni “Fully Rollable Transparent Nanogenerators Transfer Based on Graphene Electrodes” (Dr. J.-Y. Choi’s Group, SAIT) - Adv. Mater. (In Press, Cover Suggestion) Polymer ZnO NRs growth Integration g ZnO NRs Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Mode Control & Work Function Dependency (submitted) Mode Control & Work Function Dependency (submitted) Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Sound-Driven Piezoelectric Nanogenerators Sound-Driven Piezoelectric Nanogenerators (Under review) (Under review) Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Piezoelectric Touch Sensible Flexible OPV (submitted) Piezoelectric Touch Sensible Flexible OPV (submitted) Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e

Thank you very much !!! Thank you very much !!! Recent Core Collaborators: Display Lab. & Frontier Res. Lab. (SAIT), Prof. Z. L. Wang (Gatech), CIGS Solar Cell Group (ETRI), Prof. D.-H. Yoon, Prof. H.-K. Cho (SKKU), Dr. H. H. ( ), p ( ), , ( ), Lee, Dr. J.-H. Park (PLS), Dr. S. Lee (KIST), Prof. S.-J. Park (GIST), Prof. Sz. Fujita (Kyoto Univ.), Prof. H.-K. Kim (KHU), Prof. S. Maeng (Woosuk Univ.), Prof. W. I. Milne (Cambridge Unv.) Prof. I.-H. Lee (Chonbuk Univ.), Dr. A. Maiti (LLNL), Prof. D.-Y. Jeong (SKKU), Prof. S. U ) o ee (C o bu U ), a t ( ), o Jeo g (S U), o S Hong (SNU), Prof. C. Cho (PNU), H. Hosono (TIT) etc Nano Electronic Science & Engineering Laboratory (NESEL) h h h h h h h h h h h h e e e e e e e e e e e e