Prof. Yuntao Cheng Profile

Prof. Yuntao Cheng

at Institute of Optics and Electronics CAS

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 13 December 2021 Paper

Design of high-performance ternary ammonia gas sensors based on Au NPs hybrid PANI-TiO2 nanocomposites on flexible polyimide substrate

Gangrong Chen, Yongtao Yuan, Haibin Zhang, Ming Lang, Yuntao Cheng

Proceedings Volume 12075, 120750C (2021) https://doi.org/10.1117/12.2604881

KEYWORDS: Sensors, Gold, Gas sensors, Nanocomposites, Nanoparticles, Composites, Polymerization

Read Abstract +

Here, an effective and economic ternary ammonia gas sensor with Au nanoparticles (NPs) hybrid polyaniline (PANI)- titanium dioxide (TiO₂) nanocomposites on a flexible polyimide substrate has been successfully fabricated. In this work, high catalytic and controllably synthesized near-spherical Au NPs with size of sub-100 nm was interestingly employed, meanwhile, a facile in-situ oxidative polymerization was used to composite the Au NPs with the conventional binary PANI- TiO₂. Analysis and characterization of the structures, compositions, and the gas-sensing performances of the designed ternary ammonia gas sensor were systematically explored. The results show that the Au and TiO₂ NPs were evenly distributed among the PANI fibrous networks, favoring the construction of the practical gas sensors. Besides, the gas sensor with 1 wt% of Au and 20 mol% of TiO₂ dispersed into PANI showed an excellent gas-sensing performance: the response and recovery rates of the sensors respectively reach 32 s and 111 s to 100 ppm concentration of ammonia at room temperature, and the response value approach to 123%, which is approximately 1.9 times and 1.2 times higher than the pure PANI and PANI-TiO₂. Furthermore, the designed gas sensors exhibited significant stability, selectivity and response-concentration linearity (correlation coefficients R²=0.9984). It is expected that our concerned and designed ternary gas sensors may find great potential applications such as in flexible wearable devices and the medical health monitors.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years