Journal article
Beyond Gold: Spin‐Coated Ti3C2‐Based MXene Photodetectors
Advanced materials (Weinheim), v 31(43), pp 1903271-n/a
12 Sep 2019
PMID: 31523860
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
2D transition metal carbides, known as MXenes, are transparent when the samples are thin enough. They are also excellent electrical conductors with metal-like carrier concentrations. Herein, these characteristics are exploited to replace gold (Au) in GaAs photodetectors. By simply spin-coating transparent Ti3C2-based MXene electrodes from aqueous suspensions onto GaAs patterned with a photoresist and lifted off with acetone, photodetectors that outperform more standard Au electrodes are fabricated. Both the Au- and MXene-based devices show rectifying contacts with comparable Schottky barrier heights and internal electric fields. The latter, however, exhibit significantly higher responsivities and quantum efficiencies, with similar dark currents, hence showing better dynamic range and detectivity, and similar sub-nanosecond response speeds compared to the Au-based devices. The simple fabrication process is readily integratable into microelectronic, photonic-integrated circuits and silicon photonics processes, with a wide range of applications from optical sensing to light detection and ranging and telecommunications.
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Details
- Title
- Beyond Gold: Spin‐Coated Ti3C2‐Based MXene Photodetectors
- Creators
- Kiana Montazeri - Drexel UniversityMarc Currie - United States Naval Research LaboratoryLouisiane Verger - Drexel UniversityPouya Dianat - Drexel UniversityMichel Barsoum - Drexel UniversityBahram Nabet - Drexel University
- Publication Details
- Advanced materials (Weinheim), v 31(43), pp 1903271-n/a
- Publisher
- Wiley-VCH Verlag
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; Materials Science and Engineering
- Web of Science ID
- WOS:000486684200001
- Scopus ID
- 2-s2.0-85073695548
- Other Identifier
- 991019168204204721
UN Sustainable Development Goals (SDGs)
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter