Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 5, Issue 10, Pages 8970-8975Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee22251e
Keywords
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Funding
- Basic Research Program and Global Frontier Research Center for Advanced Soft Electronics through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2011-0006268, 2009-0064888, 2011-0030014, 2012006049]
- Research Centre of Breakthrough Technology Program through the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Knowledge Economy (MKE) [2009-3021010030-11-1]
- Energy International Collaboration Research AMP
- Development Program of the KETEP
- MKE [2011-8520010050]
- National Research Foundation of Korea [2009-0064888] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report a simple and effective approach for high performance PbZr0.52Ti0.48O3 (PZT) based flexible and semi-transparent NGs that exploit the electrical, mechanical and transparent properties of graphene. PZT NGs are successfully demonstrated for continuous driving of a liquid crystal display screen and a light emitting diode. A good quality PZT film was deposited on Pt/Ti/SiO2/Si wafer by the sol-gel method, exhibiting a typical hysteresis loop in the low voltage region. A graphene film was used in the interdigitated electrode form to improve the PZT/graphene interface under mechanical stress. Further improvement in NGs performance was realized by p-type doping in graphene, resulting in an increase in current density. NGs showed a high output voltage similar to 2 V, current density similar to 2.2 mu A cm(-2) and power density similar to 88 mW cm(-3) at an applying force of 0.9 kgf. This can efficiently run commercially available electronic components in a self-powered mode, without any external electrical supply.
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