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Solid-State Dye Sensitized Optoelectronic Carbon Nanotube-Wires: An Energy Harvesting Damage Sensor With Nanotechnology Approach

[+] Author Affiliations
Mohammed Jasim Uddin, Tarik J. Dickens, Jin Yan, David O. Olawale, Okenwa I. Okoli

FAMU-FSU College of Engineering, Tallahassee, FL

Federico Cesano

University of Turin, Turin, Italy

Paper No. SMASIS2012-8200, pp. 879-884; 6 pages
  • ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring
  • Stone Mountain, Georgia, USA, September 19–21, 2012
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4509-7
  • Copyright © 2012 by ASME


A novel preparation method of solid state photovoltaic carbon nanotubes (CNT) yarns has been successfully developed by depositing and grafting TiO2 thin films on CNT yarn substrates using a simple sol–gel method and designed for use in structural health monitoring (SHM) applications. The interaligned, ultrastrong and flexible CNYs display excellent electrical conductivity, mechanical integrity and their catalytic properties have been successfully used as working and counter electrodes. The TiO2 nanoparticles have been found to form a homogeneous thin film on the yarn surface, which shows efficient photovoltaic properties with remarkable stability when exposed to simulated solar light (AM 1.5). The yarns’ structure is not altered upon sol-gel treatment and light exposure. The TiO2 film is firmly anchored and the photovoltaic performance is retained even after multiple irradiation cycles. This preparation technique can also be applied to CNT yarn reinforced composite for an innovative in-situ and real-time self damage-sensing properties with infused triboluminescent (TL) materials.

Copyright © 2012 by ASME



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