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Serebrennikova SI, Kopylova DS, Gladush YG, Krasnikov DV, Mailis S, Nasibulin AG. Photogating interfacial effects in carbon nanotube-based transistors on a Si/SiO 2 substrate toward highly sensitive photodetection. NANOSCALE 2023; 15:19351-19358. [PMID: 38013470 DOI: 10.1039/d3nr04451c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) are considered to be promising material platforms for various photodetectors (including phototransistors) due to their unique optoelectrical properties (e.g., high mobility and a wide variety of bandgap values). Herein, we present highly sensitive phototransistors which utilised sparse networks of SWCNTs on a silicon/silica substrate and operated by means of the photogating effect. The response of SWCNTs to photo-induced electrostatic charges (photogating effect) was highly dependent on the conductivity type of the channel, which was "metallic" or "semiconducting", depending on the SWCNT density. We determined the performance of these transistors depending on the characteristics of the substrate and conductivity type of the SWCNT channel. The optimized configuration of phototransistors with a channel comprising a sparse network of SWCNTs permitted improvement in the specific detectivity and relative response compared with previously reported photodetectors based on graphene and carbon nanotubes. We demonstrated an absolute responsivity of ∼60 A W-1 at an incident light power of ∼2 nW, specific detectivity of 7.8 × 1011 cm·Hz1/2 W-1, and response time of 300 μs. These data revealed the high potential of photogating-based SWCNTs detectors for extremely weak signals with a high signal-to-noise ratio.
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Affiliation(s)
| | - Daria S Kopylova
- Skolkovo Institute of Science and Technology, Nobel 3, 121205, Moscow, Russia.
| | - Yuriy G Gladush
- Skolkovo Institute of Science and Technology, Nobel 3, 121205, Moscow, Russia.
| | - Dmitry V Krasnikov
- Skolkovo Institute of Science and Technology, Nobel 3, 121205, Moscow, Russia.
| | - Sakellaris Mailis
- Skolkovo Institute of Science and Technology, Nobel 3, 121205, Moscow, Russia.
| | - Albert G Nasibulin
- Skolkovo Institute of Science and Technology, Nobel 3, 121205, Moscow, Russia.
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Huang Y, Wei L, Chen T, Xu T, Cai Y, Guo Y, Xie Y. Ultra-Low-Density Carbon Nanotube Aerogel Film for Fast and Sensitive Bolometric Sensing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12137-12145. [PMID: 36821794 DOI: 10.1021/acsami.2c20099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In various applications, infrared (IR) detectors with quick responses and high sensitivity at room temperature are essential. This work synthesizes carbon nanotube aerogel films (CAFs) with an ultra-low density of 1.33 mg cm-3. Transient electrothermal (TET) technology is used to characterize the thermal and electrical transport of CAFs in the temperature range of 320 to 10 K. CAF has record-low thermal conductivity (2.5 mW m-1 K-1 at 320 K) and thermal diffusivity (2.24 × 10-6 m2 s-1 at 320 K) in vacuum. The TCR of CAF is -0.11%/K at 295 K, which is 57% higher than that of the MWCNT films. In addition, the comprehensive bolometric performance of carbon nanotube aerogels is tested and analyzed, including the photothermal response, resistivity responsivity, and response time to lasers of a broad spectrum from ultraviolet to near-infrared. The relative responsivity of CAF to lasers of different wavelengths is found to be consistent. The response time of CAF with 200 μm suspended length is measured to be as short as 2.95-3.03 ms (framing rate of 330-339 per second). In addition, the resistive response of the CAF sample to a blackbody radiator and the radiation of the human hand also shows good sensitivity and repeatability. These results demonstrate the promising application of CAF as a sensitive and fast-response uncooled bolometer.
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Affiliation(s)
- Yuanhong Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Lujie Wei
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Tingting Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Tianhang Xu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Yifei Cai
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Yayi Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Yangsu Xie
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
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Tuning Bolometric Parameters of Sierpinski Fractal Antenna-Coupled Uncracked/Cracked SWCNT Films by Thermoelectric Characterization at UHF Frequencies. ELECTRONICS 2022. [DOI: 10.3390/electronics11111665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, the bolometric parameters of Sierpinski fractal antenna-coupled SWCNT semi-metallic films are obtained by thermoelectric characterization, this in order to find out the performance as bolometer. The method was based on an experimental setup considering a line-of-sight wireless link between two identical planar fractal antennas, infrared thermography, and electrical resistance measurements. The experimental setup considered the antennas resonant frequencies. Both the transmitting and receiving antenna were third-iteration Sierpinski fractal dipoles designed to work at UHF frequencies. Films made either of cracked or uncracked SWCNT films were each separately coupled to the receiving fractal antenna. Measurements showed that the receiving antenna that was impinged with radiation at UHF frequencies coming from the transmitting antenna, experienced as it was expected an induction of electric current, the induced current flowed through the film producing a temperature change, which in turn caused changes in the radiated heat of the film, as well as changes in the electrical resistance known as Temperature Coefficient of Resistance TCR. The maximum value of TCR for uncracked SWCNT films was −3.6%K−1, higher than the one observed for cracked SWCNT films which exhibited a maximum value of −1.46%K−1. Measurements for conversion of incident radiation to electrical signals known as the Voltage Responsivity ℜv, exhibited values of 9.4 mV/W and 1.4 mV/W for uncracked SWCNT films and cracked SWCNT films, respectively.
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Qi T, Yu Y, Hu Y, Li K, Guo N, Jia Y. Single-Walled Carbon Nanotube-Germanium Heterojunction for High-Performance Near-Infrared Photodetector. NANOMATERIALS 2022; 12:nano12081258. [PMID: 35457966 PMCID: PMC9024978 DOI: 10.3390/nano12081258] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/31/2022] [Accepted: 04/02/2022] [Indexed: 02/04/2023]
Abstract
In this research, we report on a high-performance near-infrared (near-IR) photodetector based on single-walled carbon nanotube-germanium (SWCNT-Ge) heterojunction by assembling SWCNT films onto n-type Ge substrate with ozone treatment. The ozone doping enhances the conductivity of carbon nanotube films and the formed interfacial oxide layer (GeOx) suppresses the leakage current and carriers’ recombination. The responsivity and detectivity in the near-IR region are estimated to be 362 mA W−1 and 7.22 × 1011 cm Hz1/2 W−1, respectively, which are three times the value of the untreated device. Moreover, a rapid response time of ~11 μs is obtained simultaneously. These results suggest that the simple SWCNT-Ge structure and ozone treatment method might be utilized to fabricate high-performance and low-cost near-IR photodetectors.
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Affiliation(s)
- Tao Qi
- Department of Communication Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
| | - Yaolun Yu
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
| | - Yanyan Hu
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
| | - Kangjie Li
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
| | - Nan Guo
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
- Correspondence: (N.G.); (Y.J.)
| | - Yi Jia
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China; (Y.Y.); (Y.H.); (K.L.)
- Correspondence: (N.G.); (Y.J.)
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Fedorov FS, Settipani D, Melandsø Buan ME, Sainio J, Ali FSM, Ilatovskii D, Kallio T, Nasibulin AG. High Performance Hydrogen Evolution Reaction Catalyst Based on Single‐Walled Carbon Nanotubes Decorated by RuO
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Nanoparticles. ChemElectroChem 2020. [DOI: 10.1002/celc.202000528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fedor S. Fedorov
- Laboratory of Nanomaterials, Center of Photonics and Quantum MaterialsSkolkovo Institute of Science and Technology 3 Nobel St 121205 Moscow Russian Federation
| | - Daniel Settipani
- Electrochemical Energy Conversion GroupDepartment of Chemistry and Materials ScienceAalto University Kemistintie 1 02015 Espoo Finland
| | - Marthe Emelie Melandsø Buan
- Electrochemical Energy Conversion GroupDepartment of Chemistry and Materials ScienceAalto University Kemistintie 1 02015 Espoo Finland
| | - Jani Sainio
- Department of Applied Physics, School of ScienceAalto University P.O. Box 15100 FI-00076 Aalto Finland
| | - Farhan S. M. Ali
- Electrochemical Energy Conversion GroupDepartment of Chemistry and Materials ScienceAalto University Kemistintie 1 02015 Espoo Finland
| | - Daniil Ilatovskii
- Laboratory of Nanomaterials, Center of Photonics and Quantum MaterialsSkolkovo Institute of Science and Technology 3 Nobel St 121205 Moscow Russian Federation
| | - Tanja Kallio
- Electrochemical Energy Conversion GroupDepartment of Chemistry and Materials ScienceAalto University Kemistintie 1 02015 Espoo Finland
| | - Albert G. Nasibulin
- Laboratory of Nanomaterials, Center of Photonics and Quantum MaterialsSkolkovo Institute of Science and Technology 3 Nobel St 121205 Moscow Russian Federation
- Electrochemical Energy Conversion GroupDepartment of Chemistry and Materials ScienceAalto University Kemistintie 1 02015 Espoo Finland
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