Two-Dimensional Materials for Sensing: Graphene and Beyond
by
Seba Sara Varghese 1,2, Saino Hanna Varghese 3, Sundaram Swaminathan 2, Krishna Kumar Singh 4 and Vikas Mittal 1,*
Seba Sara Varghese 1,2, Saino Hanna Varghese 3, Sundaram Swaminathan 2, Krishna Kumar Singh 4 and Vikas Mittal 1,*
1
Department of Chemical Engineering, The Petroleum Institute, Abu Dhabi 2533, United Arab Emirates
2
Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani, Dubai Campus, Dubai 345055, United Arab Emirates
3
Department of Chemistry, Catholicate College, Pathanamthitta, 689645 Kerala, India
4
Department of Physics, Birla Institute of Technology and Science Pilani, Dubai Campus, Dubai 345055, United Arab Emirates
*
Author to whom correspondence should be addressed.
Academic Editor: Frank Schwierz
Electronics 2015, 4(3), 651-687; https://doi.org/10.3390/electronics4030651
Received: 3 August 2015 / Revised: 8 September 2015 / Accepted: 14 September 2015 / Published: 18 September 2015
(This article belongs to the Special Issue Two-Dimensional Electronics - Prospects and Challenges)
Two-dimensional materials have attracted great scientific attention due to their unusual and fascinating properties for use in electronics, spintronics, photovoltaics, medicine, composites, etc. Graphene, transition metal dichalcogenides such as MoS2, phosphorene, etc., which belong to the family of two-dimensional materials, have shown great promise for gas sensing applications due to their high surface-to-volume ratio, low noise and sensitivity of electronic properties to the changes in the surroundings. Two-dimensional nanostructured semiconducting metal oxide based gas sensors have also been recognized as successful gas detection devices. This review aims to provide the latest advancements in the field of gas sensors based on various two-dimensional materials with the main focus on sensor performance metrics such as sensitivity, specificity, detection limit, response time, and reversibility. Both experimental and theoretical studies on the gas sensing properties of graphene and other two-dimensional materials beyond graphene are also discussed. The article concludes with the current challenges and future prospects for two-dimensional materials in gas sensor applications.
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Varghese, S.S.; Varghese, S.H.; Swaminathan, S.; Singh, K.K.; Mittal, V. Two-Dimensional Materials for Sensing: Graphene and Beyond. Electronics 2015, 4, 651-687.
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