Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 212, Issue 9, Pages 2005-2011Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201431829
Keywords
BaTiO3; capping layers; flexible devices; nanowires; optical transparency; piezoelectric properties; touch sensors; ZnO
Funding
- Graphene Materials/Components Development Project - Ministry of Trade, industry and Energy (MOTIEI, Korea) [10044366]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2013R1A1A1008436]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10044366] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013R1A1A1008436] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report on fully flexible and transparent piezoelectric touch sensors based on Zno nanowires (NWS). Their piezoelectric properties are further enchanced by incorporating BaTiO3 into the capping layer on nanowires. Felexibilty is improved by a highly transparent carbon nanotubes silver nanowires demonstrates a large increase of the output voltage (similar to 3.3 V) from the touch sensor compared to the voltage (similar to 50 mV). Mechanical bending tests reveal that the BaTiO3-added capping layer did not show significant degradation in change of resistance. Our results suggest that the piezoelectr5ic touch sensors are promising for next-generation flexible touch sensors, wearable, and rollable touch panels. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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