Journal article
Scalable manufacturing of flexible and highly conductive Ti3C2Tx/PEDOT:PSS thin films for electromagnetic interference shielding
New journal of chemistry, v 45(44), pp 20787-20799
15 Nov 2021
Abstract
The ever-increasing proliferation of miniaturized and wearable electronics demands lightweight and easy-to-process electromagnetic interference (EMI) shielding materials. Herein, we develop flexible micrometer-thick Ti3C2Tx/poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) nanocomposite films with exceptional electrical conductivity and shielding effectiveness, and with sufficiently uniform thickness. In particular, a similar to 7 mu m-thick nanocomposite film containing 25 wt% PEDOT:PSS has an exceptional electrical conductivity of 2900 +/- 400 S cm(-1) and an EMI shielding effectiveness of 55.4 dB after a co-treatment with sulfuric acid and methanol. To the best of our knowledge, this is the highest electrical conductivity ever reported for MXene-based polymer nanocomposites. Besides, the thin film possesses a specific EMI shielding effectiveness of 38 079 dB cm(2) g(-1), which is among the highest values for conductive polymer nanocomposites. The inclusion of PEDOT:PSS endows great film-forming ability to Ti3C2Tx suspensions and hampers unwanted phenomena such as the coffee-ring effect. We also implement a wet-transfer approach to form Ti3C2Tx/PEDOT:PSS nanocomposite films on complex geometries with curves, angles, and corners, which not only opens up new opportunities for developing EMI shields on complex geometries but also offers a feasible pathway for developing flexible and wearable electronics.
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Details
- Title
- Scalable manufacturing of flexible and highly conductive Ti3C2Tx/PEDOT:PSS thin films for electromagnetic interference shielding
- Creators
- Ahmadreza Ghaffarkhah - MBIAMilad Kamkar - MBIAHossein Riazi - Drexel UniversityEhsan Hosseini - MBIAZahra Azimi Dijvejin - Okanagan University CollegeKevin Golovin - Okanagan University CollegeMasoud Soroush - Drexel UniversityMohammad Arjmand - MBIA
- Publication Details
- New journal of chemistry, v 45(44), pp 20787-20799
- Publisher
- Royal Soc Chemistry
- Number of pages
- 13
- Grant note
- Department of National Defence of Canada Natural Sciences and Engineering Research Council of Canada (NSERC) ALLRP 555586-20 / NSERC; Natural Sciences and Engineering Research Council of Canada (NSERC)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000712544700001
- Scopus ID
- 2-s2.0-85119718749
- Other Identifier
- 991019168579804721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary