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Flexible ultraviolet and ambient light sensor based on nanomaterial network fabricated by using selective and localized wet-chemical reactions

Yang, Daejong and Lee, Jaehwan and Kim, Donghwan and Cho, Incheol and Ok, Jong G. and Park, Inkyu (2018) Flexible ultraviolet and ambient light sensor based on nanomaterial network fabricated by using selective and localized wet-chemical reactions. Langmuir, 34 (14). pp. 4132-4141. ISSN 0743-7463. http://resolver.caltech.edu/CaltechAUTHORS:20180315-082125642

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Abstract

We report ZnO nanowire- and TiO_2 nanotube-based light sensors on flexible polymer substrates fabricated by localized hydrothermal synthesis and liquid phase deposition (LPD). This method realized simple and cost-effective in situ synthesis and integration of one-dimensional ZnO and TiO_2 nanomaterials. The fabricated sensor devices with ZnO nanowires and TiO_2 nanotubes show very high sensitivity and quick response to the ultraviolet (UV) and ambient light, respectively. In addition, our direct synthesis and integration method result in mechanical robustness under external loading such as static and cyclic bending because of the strong bonding between the nanomaterial and the electrode. By controlling the reaction time of the LPD process, the Ti/Zn ratio could be simply modulated and the spectral sensitivity to the light in the UV to visible range could be controlled.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acs.langmuir.7b02332DOIArticle
https://pubs.acs.org/doi/10.1021/acs.langmuir.7b02332PublisherArticle
https://pubs.acs.org/doi/suppl/10.1021/acs.langmuir.7b02332PublisherSupporting Information
ORCID:
AuthorORCID
Yang, Daejong0000-0002-8774-5843
Park, Inkyu0000-0001-5761-7739
Additional Information:© 2018 American Chemical Society. Received: July 5, 2017; Revised: January 7, 2018; Published: March 14, 2018. This research was supported by Basic Science Research Programs (No. 2015R1A5A1037668) through the National Research Foundation (NRF) funded by the Korean government. This research was also supported by Multi-Ministry Collaborative R&D Program (Development of Techniques for Identification and Analysis of Gas Molecules to Protect Against Toxic Substances) through the National Research Foundation of Korea (NRF) funded by KNPA, MSIT, MOTIE, ME, NFA (NRF-2017M3D9A1073858). Author Contributions: The manuscript was written through contributions of all authors. All authors have given approval to the final version of the manuscript. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
National Research Foundation of Korea2015R1A5A1037668
National Research Foundation of Korea2017M3D9A1073858
Record Number:CaltechAUTHORS:20180315-082125642
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180315-082125642
Official Citation:Flexible Ultraviolet and Ambient Light Sensor Based on a Nanomaterial Network Fabricated Using Selective and Localized Wet Chemical Reactions. Daejong Yang, Jaehwan Lee, Donghwan Kim, Incheol Cho, Jong G. Ok, and Inkyu Park. Langmuir 2018 34 (14), 4132-4141. DOI: 10.1021/acs.langmuir.7b02332
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85325
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Mar 2018 20:11
Last Modified:16 Apr 2018 21:14

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