1
|
Michailow W, Spencer P, Almond NW, Kindness SJ, Wallis R, Mitchell TA, Degl’Innocenti R, Mikhailov SA, Beere HE, Ritchie DA. An in-plane photoelectric effect in two-dimensional electron systems for terahertz detection. SCIENCE ADVANCES 2022; 8:eabi8398. [PMID: 35427162 PMCID: PMC9012455 DOI: 10.1126/sciadv.abi8398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Many mid- and far-infrared semiconductor photodetectors rely on a photonic response, when the photon energy is large enough to excite and extract electrons due to optical transitions. Toward the terahertz range with photon energies of a few milli-electron volts, classical mechanisms are used instead. This is the case in two-dimensional electron systems, where terahertz detection is dominated by plasmonic mixing and by scattering-based thermal phenomena. Here, we report on the observation of a quantum, collision-free phenomenon that yields a giant photoresponse at terahertz frequencies (1.9 THz), more than 10-fold as large as expected from plasmonic mixing. We artificially create an electrically tunable potential step within a degenerate two-dimensional electron gas. When exposed to terahertz radiation, electrons absorb photons and generate a large photocurrent under zero source-drain bias. The observed phenomenon, which we call the "in-plane photoelectric effect," provides an opportunity for efficient direct detection across the entire terahertz range.
Collapse
Affiliation(s)
- Wladislaw Michailow
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Peter Spencer
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Nikita W. Almond
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Stephen J. Kindness
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Robert Wallis
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Thomas A. Mitchell
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | | | | | - Harvey E. Beere
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - David A. Ritchie
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
- Swansea University, Singleton Park, Sketty, Swansea SA2 8PP, UK
| |
Collapse
|
2
|
Liu J, Li X, Jiang R, Yang K, Zhao J, Khan SA, He J, Liu P, Zhu J, Zeng B. Recent Progress in the Development of Graphene Detector for Terahertz Detection. SENSORS (BASEL, SWITZERLAND) 2021; 21:4987. [PMID: 34372224 PMCID: PMC8347591 DOI: 10.3390/s21154987] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/17/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022]
Abstract
Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz technology. Due to the two-dimensional structure, graphene has unique characteristics features, such as exceptionally high electron mobility, zero band-gap, and frequency-independent spectral absorption, particularly in the terahertz region, making it a suitable material for terahertz detectors. In this review, the recent progress of graphene terahertz detectors related to photovoltaic effect (PV), photothermoelectric effect (PTE), bolometric effect, and plasma wave resonance are introduced and discussed.
Collapse
Affiliation(s)
- Jianlong Liu
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Xin Li
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Ruirui Jiang
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Kaiqiang Yang
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Jing Zhao
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Sayed Ali Khan
- Institute of Electromagnetics and Acoustics, School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China;
| | - Jiancheng He
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| | - Peizhong Liu
- Department of the Internet of Things Engineering, College of Engineering, Huaqiao University, Quanzhou 362000, China;
| | - Jinfeng Zhu
- Institute of Electromagnetics and Acoustics, School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China;
| | - Baoqing Zeng
- National Key Laboratory of Science and Technology on Vacuum Electronics, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; (J.L.); (X.L.); (R.J.); (K.Y.); (J.Z.); (J.H.); (B.Z.)
| |
Collapse
|
3
|
Hou HW, Liu Z, Teng JH, Palacios T, Chua SJ. High Temperature Terahertz Detectors Realized by a GaN High Electron Mobility Transistor. Sci Rep 2017; 7:46664. [PMID: 28429745 PMCID: PMC5399372 DOI: 10.1038/srep46664] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 03/22/2017] [Indexed: 11/19/2022] Open
Abstract
In this work, a high temperature THz detector based on a GaN high electron mobility transistor (HEMT) with nano antenna structures was fabricated and demonstrated to be able to work up to 200 °C. The THz responsivity and noise equivalent power (NEP) of the device were characterized at 0.14 THz radiation over a wide temperature range from room temperature to 200 °C. A high responsivity Rv of 15.5 and 2.7 kV/W and a low NEP of 0.58 and 10 pW/Hz0.5 were obtained at room temperature and 200 °C, respectively. The advantages of the GaN HEMT over other types of field effect transistors for high temperature terahertz detection are discussed. The physical mechanisms responsible for the temperature dependence of the responsivity and NEP of the GaN HEMT are also analyzed thoroughly.
Collapse
Affiliation(s)
- H W Hou
- Low-energy electronic system IRG, Singapore-MIT Alliance for Research and Technology Center, 1 CREATE Way, 138602, Singapore.,Department of Electrical and Computer Engineering, National University of Singapore, Block E4, Engineering Drive 3, 117583, Singapore
| | - Z Liu
- Low-energy electronic system IRG, Singapore-MIT Alliance for Research and Technology Center, 1 CREATE Way, 138602, Singapore
| | - J H Teng
- Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - T Palacios
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts, 02139, United States
| | - S J Chua
- Low-energy electronic system IRG, Singapore-MIT Alliance for Research and Technology Center, 1 CREATE Way, 138602, Singapore.,Department of Electrical and Computer Engineering, National University of Singapore, Block E4, Engineering Drive 3, 117583, Singapore
| |
Collapse
|
4
|
Mittendorff M, Kamann J, Eroms J, Weiss D, Drexler C, Ganichev SD, Kerbusch J, Erbe A, Suess RJ, Murphy TE, Chatterjee S, Kolata K, Ohser J, König-Otto JC, Schneider H, Helm M, Winnerl S. Universal ultrafast detector for short optical pulses based on graphene. OPTICS EXPRESS 2015; 23:28728-28735. [PMID: 26561141 DOI: 10.1364/oe.23.028728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Graphene has unique optical and electronic properties that make it attractive as an active material for broadband ultrafast detection. We present here a graphene-based detector that shows 40-picosecond electrical rise time over a spectral range that spans nearly three orders of magnitude, from the visible to the far-infrared. The detector employs a large area graphene active region with interdigitated electrodes that are connected to a log-periodic antenna to improve the long-wavelength collection efficiency, and a silicon carbide substrate that is transparent throughout the visible regime. The detector exhibits a noise-equivalent power of approximately 100 µW·Hz(-½) and is characterized at wavelengths from 780 nm to 500 µm.
Collapse
|
5
|
Regensburger S, Mittendorff M, Winnerl S, Lu H, Gossard AC, Preu S. Broadband THz detection from 0.1 to 22 THz with large area field-effect transistors. OPTICS EXPRESS 2015; 23:20732-20742. [PMID: 26367925 DOI: 10.1364/oe.23.020732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on ultrafast detection of radiation between 100 GHz and 22 THz by field-effect transistors in a large area configuration. With the exception of the Reststrahlenband of GaAs, the spectral coverage of the GaAs-based detectors is more than two orders of magnitude, covering the entire THz range (100 GHz - 10 THz). The temporal resolution of the robust devices is yet limited by the 30 GHz oscilloscope used for read out. The responsivity roll-off towards higher frequencies is weaker than expected from an RC-roll-off model. Terahertz pulses with peak powers of up to 65kW have been recorded without damaging the devices.
Collapse
|
6
|
Cai X, Sushkov AB, Suess RJ, Jadidi MM, Jenkins GS, Nyakiti LO, Myers-Ward RL, Li S, Yan J, Gaskill DK, Murphy TE, Drew HD, Fuhrer MS. Sensitive room-temperature terahertz detection via the photothermoelectric effect in graphene. NATURE NANOTECHNOLOGY 2014; 9:814-9. [PMID: 25194945 DOI: 10.1038/nnano.2014.182] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 07/30/2014] [Indexed: 05/14/2023]
Abstract
Terahertz radiation has uses in applications ranging from security to medicine. However, sensitive room-temperature detection of terahertz radiation is notoriously difficult. The hot-electron photothermoelectric effect in graphene is a promising detection mechanism; photoexcited carriers rapidly thermalize due to strong electron-electron interactions, but lose energy to the lattice more slowly. The electron temperature gradient drives electron diffusion, and asymmetry due to local gating or dissimilar contact metals produces a net current via the thermoelectric effect. Here, we demonstrate a graphene thermoelectric terahertz photodetector with sensitivity exceeding 10 V W(-1) (700 V W(-1)) at room temperature and noise-equivalent power less than 1,100 pW Hz(-1/2) (20 pW Hz(-1/2)), referenced to the incident (absorbed) power. This implies a performance that is competitive with the best room-temperature terahertz detectors for an optimally coupled device, and time-resolved measurements indicate that our graphene detector is eight to nine orders of magnitude faster than those. A simple model of the response, including contact asymmetries (resistance, work function and Fermi-energy pinning) reproduces the qualitative features of the data, and indicates that orders-of-magnitude sensitivity improvements are possible.
Collapse
Affiliation(s)
- Xinghan Cai
- Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA
| | - Andrei B Sushkov
- Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA
| | - Ryan J Suess
- Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
| | - Mohammad M Jadidi
- Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
| | - Gregory S Jenkins
- Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA
| | | | | | - Shanshan Li
- Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
| | - Jun Yan
- 1] Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA [2] Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | | | - Thomas E Murphy
- Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
| | - H Dennis Drew
- Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA
| | - Michael S Fuhrer
- 1] Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, USA [2] School of Physics, Monash University, 3800 Victoria, Australia
| |
Collapse
|