Two-dimensional Bi<sub>2</sub>Se<sub>3</sub> nanosheet based flexible infrared photodetector with pencil-drawn graphite electrodes on paper

Liu, Shengqian; Huang, Zongyu; Qiao, Hao; Hu, Rong; Ma, Qian; Huang, Kai; Li, Hongxing; Qi, Xiang

doi:10.1039/c9na00745h

Cited by 37 publications

(31 citation statements)

References 41 publications

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“…Figure a shows the current–voltage characteristics ( IV curve) of 660 nm laser irradiation at different optical power densities. It can be seen from the figure that the IV curve shows linearity and symmetry, [ 30 ] which indicates that there is an Ohmic contact between the material and the metal electrode, indicating that the device has low contact resistance. At the same time, in the IV curve graph, the photocurrent increases with the increase of the light intensity.…”

Section: Resultsmentioning

confidence: 99%

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Hou

Liu

Liao

et al. 2020

Crystal Research and Technology

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Here, molybdenum disulfide with graphene‐like structure is prepared by a feasible and simple hydrothermal method. It is also characterized by X‐ray diffraction and a scanning electron microscope to verify the yield and quality of the prepared molybdenum disulfide (MoS2). In addition, a type of photodetector is prepared from the prepared MoS2 as a photosensitive material, and its light response characteristics are explored. The experimental results show that the prepared MoS2 has good photoresponse performance, and it can achieve a photocurrent of 2.40 µA under 660 nm light of 9.85 mW mm−2. At the same time, it shows stable and repeatable light response characteristics at different bending angles. This work is considered as a way to construct a new type of photodetector with a simple manufacturing process and low cost.

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Section: Resultsmentioning

confidence: 99%

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Hou

Liu

Liao

et al. 2020

Crystal Research and Technology

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Section: Recent Developments Of Liquid‐exfoliated 2d Photodetectorsmentioning

confidence: 99%

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

Alzakia

Tan

2021

Advanced Science

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Two‐dimensional (2D) materials have attracted tremendous research attention in recent days due to their extraordinary and unique properties upon exfoliation from the bulk form, which are useful for many applications such as electronics, optoelectronics, catalysis, etc. Liquid exfoliation method of 2D materials offers a facile and low‐cost route to produce large quantities of mono‐ and few‐layer 2D nanosheets in a commercially viable way. Optoelectronic devices such as photodetectors fabricated from percolating networks of liquid‐exfoliated 2D materials offer advantages compared to conventional devices, including low cost, less complicated process, and higher flexibility, making them more suitable for the next generation wearable devices. This review summarizes the recent progress on metal–semiconductor–metal (MSM) photodetectors fabricated from percolating network of 2D nanosheets obtained from liquid exfoliation methods. In addition, hybrids and mixtures with other photosensitive materials, such as quantum dots, nanowires, nanorods, etc. are also discussed. First, the various methods of liquid exfoliation of 2D materials, size selection methods, and photodetection mechanisms that are responsible for light detection in networks of 2D nanosheets are briefly reviewed. At the end, some potential strategies to further improve the performance the devices are proposed.

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“…Bi2Se3 nanosheets were obtained by liquid phase lift-off process [28]. Briefly, an appropriate amount of Bi2Se3 (200 mg) was dissolved to 80 ml N-Methyl pyrrolidone solution, then sonicated for 24 hours at room temperature.…”

Section: Experimental Section 21 Sample Preparationmentioning

confidence: 99%

“…As a direct band gap (0.3-1.2 eV) layered semiconductor[24], Bi2Se3 has been extensively used in various fields, such as thermoelectrical devices [25], electrical transport devices [26], optical recording system and strain gauges[27], due to its appreciable thermoelectric property, high electrical conductivity, photosensitivity and electrochemical property. In addition, the morphology of 2D nanosheets is easy to be formed [28], which can provide a beneficial load platform for combining with other semiconductors to form a heterojunction. The surface of Bi2Se3 has the characteristics of the metals surface state with great amounts of itinerant electrons, which is particularly beneficial to the charge transfer of the active site platform [26,29].…”

Section: Introductionmentioning

confidence: 99%

TiO2 Nanoparticles Anchoring on Two-Dimensional Bi2Se3 Nanosheet As An Enhanced Visible Light Catalyst

Guo

Qiao

et al. 2021

Preprint

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Titanium dioxide (TiO2) has been widely studied in the field of photocatalysis. However, the development of TiO2 was limited by the photoresponse only in the ultraviolet region and the rapid recombination of photogenerated electron-hole pairs. In this work, TiO2 and two-dimensional (2D) bismuth selenide (Bi2Se3) hybrid nanosheets (TiO2/Bi2Se3 HNs) have been prepared via a simple ultrasonic route. X-ray diffraction pattern and Raman spectra were carried out to confirm that as-prepared samples were pure and well crystalized. Besides, the microstructure characterization proves that 2D Bi2Se3 nanosheets have high specific surface area and can serve as a stable platform to construct the intimate interaction with TiO2. Furthermore, photoelectrochemical (PEC) measurements demonstrate that the TiO2/Bi2Se3 HNs exhibit excellent photocatalytic performance under visible light, which were much better than pure TiO2 and Bi2Se3. More importantly, the photocurrent density was quite stable and only dropped by 10% after 125 cycles. In summary, the improved photocatalytic activity is due to the unique characteristic of 2D Bi2Se3 nanosheets, such as maximized reaction sites and good electrical conductivity, and the positive coupling effect of the TiO2/Bi2Se3 heterojunction. This study indicates that TiO2/Bi2Se3 HNs photocatalysts have excellent potential for photocatalytic application.

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Two-dimensional Bi₂Se₃ nanosheet based flexible infrared photodetector with pencil-drawn graphite electrodes on paper

Abstract: Flexible optoelectronic devices have been of great significance in recent years, owing to their extensive commercial and military applications.

Cited by 37 publications

References 41 publications

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

TiO2 Nanoparticles Anchoring on Two-Dimensional Bi2Se3 Nanosheet As An Enhanced Visible Light Catalyst

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Two-dimensional Bi2Se3 nanosheet based flexible infrared photodetector with pencil-drawn graphite electrodes on paper

Abstract: Flexible optoelectronic devices have been of great significance in recent years, owing to their extensive commercial and military applications.

Cited by 37 publications

References 41 publications

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Simple Hydrothermal Synthesis of Molybdenum Disulfide and Its Application for a Large‐Area Photodetector

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

TiO2&nbsp;Nanoparticles Anchoring on Two-Dimensional Bi2Se3&nbsp;Nanosheet As An Enhanced Visible Light Catalyst

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Product

Resources

About

Two-dimensional Bi₂Se₃ nanosheet based flexible infrared photodetector with pencil-drawn graphite electrodes on paper

TiO2 Nanoparticles Anchoring on Two-Dimensional Bi2Se3 Nanosheet As An Enhanced Visible Light Catalyst