Fully printed high performance humidity sensors based on two-dimensional materials

Ni(SO4)0.3(OH)1.4 nanobelts are utilized in a humidity sensor by a facile method. The nanobelt based sensor shows a high sensitivity, fast response and long-term stability in the sensing process.

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Highly chemoresistive humidity sensing using poly(ionic liquid)s

Chemical Communications ◽

10.1039/c6cc04056j ◽

2016 ◽

Vol 52 (54) ◽

pp. 8417-8419 ◽

Cited By ~ 26

Author(s):

Lingling Wang ◽

Xiaochuan Duan ◽

Wuyuan Xie ◽

Qiuhong Li ◽

Taihong Wang

Keyword(s):

Ionic Liquid ◽

Relative Humidity ◽

High Performance ◽

Humidity Sensor ◽

High Sensitivity ◽

Fast Response ◽

Humidity Sensors ◽

Humidity Sensing ◽

Good Repeatability ◽

Poly Ionic Liquid

A novel resistance type humidity sensor was fabricated using poly(ionic liquid)s, which exhibited high sensitivity, fast response, small hysteresis and good repeatability at a relative humidity (RH) in the range of 11–98%, making poly(ionic liquid)s as promising sensing materials for high-performance humidity sensors.

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Controllable Synthesis of Pt Functionalized Black Phosphorus (BP) Nanocomposite for High Performance NOx Gas Sensor

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19325 ◽

2021 ◽

Vol 21 (9) ◽

pp. 4786-4791

Author(s):

Ying Liang ◽

Hongmei Bi

Keyword(s):

High Performance ◽

Bulk Material ◽

Low Cost ◽

Pt Nanoparticles ◽

High Sensitivity ◽

Black Phosphorus ◽

Two Dimensional ◽

Uniform Size ◽

Short Period ◽

Low Power Dissipation

Compared with bulk material-based sensors, functional sensors fabricated with nanomaterials have many advantages, such as high sensitivity, multifunctional integration, low power-dissipation, and low cost. Black phosphorus (BP) is a two-dimensional (2D) crystal material, which has a higher molecular adsorption energy, tunable direct band gap, high carrier mobility, ambipolar characteristics, and high current on/off ratio. In this paper, BP bulk was ground into powder, and then the powder was dispersed in dimethylformamide (DMF) to obtain two-dimensional BP nanosheets solution. Afterwards, the black phosphorus nanosheets and H2PtCl6 solution were mixed to obtain the Pt functionalized BP nanocomposite by one-step reduction method. Pt nanoparticles were dispersed on the surface of BP nanosheets with highly uniform size. The Pt functionalized BP nanocomposite exhibited a high response of 2.19 to 10 ppm NOx in a short period of 1.93 s at room temperature. The detection limit was as low as 30 ppb. The Pt functionalized BP nanocomposite will be useful for precise detection of NOx.

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Polarization-sensitive photodetectors based on three-dimensional molybdenum disulfide (MoS2) field-effect transistors

Nanophotonics ◽

10.1515/nanoph-2020-0401 ◽

2020 ◽

Vol 9 (16) ◽

pp. 4719-4728

Author(s):

Tao Deng ◽

Shasha Li ◽

Yuning Li ◽

Yang Zhang ◽

Jingye Sun ◽

...

Keyword(s):

Molybdenum Disulfide ◽

Field Effect ◽

High Performance ◽

Field Effect Transistors ◽

Three Dimensional ◽

Polarized Light ◽

Optical Field ◽

Two Dimensional ◽

Polarization Ratio ◽

Two Dimensional Materials

AbstractThe molybdenum disulfide (MoS2)-based photodetectors are facing two challenges: the insensitivity to polarized light and the low photoresponsivity. Herein, three-dimensional (3D) field-effect transistors (FETs) based on monolayer MoS2 were fabricated by applying a self–rolled-up technique. The unique microtubular structure makes 3D MoS2 FETs become polarization sensitive. Moreover, the microtubular structure not only offers a natural resonant microcavity to enhance the optical field inside but also increases the light-MoS2 interaction area, resulting in a higher photoresponsivity. Photoresponsivities as high as 23.8 and 2.9 A/W at 395 and 660 nm, respectively, and a comparable polarization ratio of 1.64 were obtained. The fabrication technique of the 3D MoS2 FET could be transferred to other two-dimensional materials, which is very promising for high-performance polarization-sensitive optical and optoelectronic applications.

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Synthesis of red/black phosphorus-based composite nanosheets with Z-scheme heterostructure for high-performance cancer phototherapy

Nanoscale ◽

10.1039/d1nr07553e ◽

2021 ◽

Author(s):

Yong Kang ◽

Zhengjun Li ◽

Fengying Lu ◽

Zhiguo Su ◽

Xiaoyuan Ji ◽

...

Keyword(s):

High Performance ◽

Research Field ◽

Black Phosphorus ◽

Two Dimensional ◽

The Poor ◽

Low Efficiency ◽

Poor Stability

Two dimensional black phosphorus nanosheets (BP NS) have attracted plenty of attentions in the research field of cancer photonic therapy. However, the poor stability and relatively low efficiency in reactive...

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Nanopillar modified high-sensitivity asymmetric Graphene-GaN photodetector

Nanoscale ◽

10.1039/d1nr04102a ◽

2021 ◽

Author(s):

Chang Liu ◽

Xiaodong Li ◽

Tiangui Hu ◽

Wenkai Zhu ◽

Faguang Yan ◽

...

Keyword(s):

Electrical Properties ◽

High Performance ◽

2D Materials ◽

Three Dimensional ◽

High Sensitivity ◽

Optical And Electrical Properties ◽

Two Dimensional

Integration of two dimensional (2D) materials with three dimensional (3D) semiconductors reveals intriguing optical and electrical properties that surpass those of the original materials. Here we report the high performance...

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