Few-layer Ti3CN MXene for ultrafast photonics applications in visible band

Yang, Zining; Yang, Qi; Tian, Y. L.; Li, Chun; Zu, Yuqian; Din, Syed Zaheer Ud; Gao, Lingfeng; Wu, Jian; Chen, Hualong; Zhang, Han; Liu, Jie; He, Jingliang; Mohammed, Mohammed Elimam Ahamed

doi:10.1016/j.jmat.2022.09.004

Cited by 22 publications

(13 citation statements)

References 40 publications

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“…The relative ECL quantum efficiency of Ti 3 CN QDs was calculated as 5.22 times that of Ti 3 C 2 QDs by the following equation: − normalQ = φ x φ 0 = true true( true∫ 0 t I normald t true∫ 0 t i normald t true) x true( true∫ 0 t I normald t true∫ 0 t i normald t true) 0 where ψ x was the ECL quantum efficiency of the Ti 3 CN QDs, ψ 0 was the ECL quantum efficiency of the Ti 3 C 2 QDs, I was the ECL signal value, and i was the current value corresponding to the ECL signal. Because the N doping changed the surface state and the conductivity of QDs, the luminescence of Ti 3 CN QDs can be improved. , Figure S1D shows the ECL potential positions of −1.854 and −1.829 V for Ti 3 C 2 QDs and Ti 3 CN QDs, respectively. Figure E and Figure S1C show the 3D ECL maps of Ti 3 C 2 QDs and Ti 3 CN QDs.…”

Section: Resultsmentioning

confidence: 99%

“…In the structure of Ti 3 CN, nitrogen replaced some carbon molecules. The Ti-N bonding was stronger than Ti-C due to the electronegative nitrogen, resulting in enhanced physical and electronic properties of Ti 3 CN. , Therefore, the luminescence performance of Ti 3 CN QDs was effectively improved. As shown in Figure D, the ECL intensity of Ti 3 CN QDs was 21.38 times higher than that of Ti 3 C 2 QDs.…”

Section: Resultsmentioning

confidence: 99%

“…Because the N doping changed the surface state and the conductivity of QDs, the luminescence of Ti 3 CN QDs can be improved. 33,34 Figure S1D shows the ECL potential positions of −1.854 and −1.829 V for Ti 3 C 2 QDs and Ti 3 CN QDs, respectively. Figure 2E and Figure S1C show the 3D ECL maps of Ti…”

Section: Apparatus Transmission Electron Microscopy (Tem)mentioning

confidence: 99%

“…In the structure of Ti 3 CN, nitrogen replaced half of the carbon. Ti-N bonding was stronger than Ti-C due to the electronegative nitrogen, resulting in enhanced physical and electronic properties of Ti 3 CN. , Therefore, the luminescence performance of QDs was effectively improved. On the other hand, morphology-controlled Bi nano-nest (Bi NN) was obtained on the electrodes by the electrodeposition methods, which not only improved the charge transfer efficiency but also amplified the ECL signal due to the LSPR effect.…”

Section: Introductionmentioning

confidence: 99%

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Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Wang

Liang

et al. 2023

Anal. Chem.

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In this study, a novel surface plasmon-coupled electrochemiluminescence (SPC-ECL) biosensor was developed based on bismuth nano-nest and Ti3CN quantum dots (Ti3CN QDs). First, MXene derivative QDs (Ti3CN QDs) with excellent luminescence performance were prepared as the ECL luminescent. The N doping in Ti3CN QDs can effectively improve the luminescence performance and catalytic activity. Therefore, the luminescence performance of QDs has been effectively improved. Furthermore, the bismuth nano-nest structure with a strong localized surface plasmon resonance effect has been designed as the sensing interface via the electrochemical deposition method. It was worth noticed that the morphology of bismuth nanomaterials can be controlled effectively on the electrode surface by the step potential method. Due to the abundant surface plasmon hot spots generated between the bismuth nano-nests, the isotropic ECL signal of Ti3CN QDs can be not only significantly enhanced by 5.8 times but also converted into polarized emission. Finally, the bismuth nano-nest/Ti3CN QD-based SPC-ECL sensor was used to quantify miRNA-421 in the range of 1 fM to 10 nM. The biosensor has been successfully used for miRNA in ascites samples from gastric cancer patients, which indicated that the SPC-ECL sensor developed in this study has great potential for clinical analysis.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Apparatus Transmission Electron Microscopy (Tem)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Wang

Liang

et al. 2023

Anal. Chem.

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“…Over the past decade, numerous studies have been conducted developing two-dimensional (2D) van der Waals (vdWs) materials SAs to meet pulsed laser generation requirements [ 18 ], such as graphene [ 19 , 20 ], transition metal dichalcogenides (TMDCs) [ 21 , 22 ], topological insulators (TIs) [ 23 ], black phosphorus (BP) [ 24 , 25 , 26 ], and MXenes [ 27 , 28 ]. These have been proven to have excellent optical properties and produce better laser pulse parameters.…”

Section: Introductionmentioning

confidence: 99%

Quasi-2D Mn3Si2Te6 Nanosheet for Ultrafast Photonics

Zhou

Kan

et al. 2023

Nanomaterials

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The magnetic nanomaterial Mn3Si2Te6 is a promising option for spin-dependent electronic and magneto-optoelectronic devices. However, its application in nonlinear optics remains fanciful. Here, we demonstrate a pulsed Er-doped fiber laser (EDFL) based on a novel quasi-2D Mn3Si2Te6 saturable absorber (SA) with low pump power at 1.5 μm. The high-quality Mn3Si2Te6 crystals were synthesized by the self-flux method, and the ultrathin Mn3Si2Te6 nanoflakes were prepared by a simple mechanical exfoliation procedure. To the best of our knowledge, this is the first time laser pulses have been generated using quasi-2D Mn3Si2Te6. A stable pulsed laser at 1562 nm with a low threshold pump power of 60 mW was produced by integrating the Mn3Si2Te6 SA into an EDFL cavity. The maximum power of the output pulse is 783 μW. The repetition rate can vary from 24.16 to 44.44 kHz, with corresponding pulse durations of 5.64 to 3.41 µs. Our results indicate that the quasi-2D Mn3Si2Te6 is a promising material for application in ultrafast photonics.

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2D Materials‐Based Pulsed Solid‐State Laser: Status and Prospect

He,

Hao,

Wang

et al. 2024

Laser & Photonics Reviews

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Pulsed solid‐state lasers comprise 2D materials as saturable absorbers that contain transparent windows of the atmosphere and characteristic fingerprint spectra of several vital molecules that are significant in various applications and research. Over the past few decades, significant progress has been made in the development of narrow pulse width, high energy, high average output power, high efficiency, and simple construction of passively Q‐switched and mode‐locked lasers with 2D materials as saturable absorbers. This review summarizes the development of 2D materials, including graphene, transition metal dichalcogenides, black phosphorus, topological insulators, and MXenes, as modulator devices for solid‐state lasers owing to their broadband operation, excellent nonlinear optical response, low recovery time, ultrafast dynamic processing, and easy fabrication. Then, some new emerging and representative applications of pulsed solid‐state lasers are introduced and illustrated such as laser surgery, material processing, and lidar. Finally, future challenges and perspectives of pulsed solid‐state lasers with 2D materials‐based saturable absorbers are analyzed and addressed. The rapid development of pulsed solid‐state lasers with the continuous improvement of modulation technology is expected to expand opportunities for application in industry, scientific, medical, and other areas.

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Few-layer Ti3CN MXene for ultrafast photonics applications in visible band

Cited by 22 publications

References 40 publications

Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Quasi-2D Mn3Si2Te6 Nanosheet for Ultrafast Photonics

2D Materials‐Based Pulsed Solid‐State Laser: Status and Prospect

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Few-layer Ti3CN MXene for ultrafast photonics applications in visible band

Cited by 22 publications

References 40 publications

Bismuth Nano-Nest/Ti3CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Bismuth Nano-Nest/Ti3CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Quasi-2D Mn3Si2Te6 Nanosheet for Ultrafast Photonics

2D Materials‐Based Pulsed Solid‐State Laser: Status and Prospect

Contact Info

Product

Resources

About

Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection

Bismuth Nano-Nest/Ti₃CN Quantum Dot-Based Surface Plasmon Coupling Electrochemiluminescence Sensor for Ascites miRNA-421 Detection