نتایج جستجو برای: molybdenum disulfide

تعداد نتایج: 31691  

2015
Xiaobo Yin Ziliang Ye Daniel A. Chenet Yu Ye Kevin O’Brien James C. Hone Xiang Zhang

The translational symmetry breaking of a crystal at its surface may form two-dimensional (2D) electronic states. We observed one-dimensional nonlinear optical edge states of a single atomic membrane of molybdenum disulfide (MoS2), a transition metal dichalcogenide. The electronic structure changes at the edges of the 2D crystal result in strong resonant nonlinear optical susceptibilities, allow...

2015
Bablu Mukherjee Ergun Simsek

Abs t rac t We have s tud ied cha rac te r i za t ion of micromechanical cleavage monolayer molybdenum disulfide (MoS2) deposited on SiO2/Si and glass substrates. Spherical gold (Au) nanoparticles were anchored on top of monolayer MoS2 film. Direct reflection spectra were measured, which infers significant improvement of total average absorption of monolayer MoS2 in Vis-NIR range of 400–800 nm ...

Journal: :Nanoscale 2014
Youngbin Lee Jinhwan Lee Hunyoung Bark Il-Kwon Oh Gyeong Hee Ryu Zonghoon Lee Hyungjun Kim Jeong Ho Cho Jong-Hyun Ahn Changgu Lee

We describe a method for synthesizing large-area and uniform molybdenum disulfide films, with control over the layer number, on insulating substrates using a gas phase sulfuric precursor (H2S) and a molybdenum metal source. The metal layer thickness was varied to effectively control the number of layers (2 to 12) present in the synthesized film. The films were grown on wafer-scale Si/SiO2 or qu...

Journal: :ACS nano 2014
Yung-Huang Chang Wenjing Zhang Yihan Zhu Yu Han Jiang Pu Jan-Kai Chang Wei-Ting Hsu Jing-Kai Huang Chang-Lung Hsu Ming-Hui Chiu Taishi Takenobu Henan Li Chih-I Wu Wen-Hao Chang Andrew Thye Shen Wee Lain-Jong Li

Monolayer molybdenum disulfide (MoS2) has become a promising building block in optoelectronics for its high photosensitivity. However, sulfur vacancies and other defects significantly affect the electrical and optoelectronic properties of monolayer MoS2 devices. Here, highly crystalline molybdenum diselenide (MoSe2) monolayers have been successfully synthesized by the chemical vapor deposition ...

2002
Noriaki Sano Haolan Wang Manish Chhowalla Ioannis Alexandrou Gehan A.J. Amaratunga Masakazu Naito Tatsuo Kanki

Closed caged fullerene-like molybdenum disulfide (MoS2) nano-particles were obtained via an arc discharge between a graphite cathode and a molybdenum anode filled with microscopic MoS2 powder submerged in de-ionized water. A statistical study of over 150 polyhedral fullerene-like MoS2 nano-particles in plan view transmission electron microscopy revealed that the majority consisted of 2–3 layers...

2014
E. S. Reifler N. T. Nuhfer E. Towe

This paper presents a systematic study of intrinsic characteristics of layered two-dimensional transitionmetal dichalcogenides, with a focus on molybdenum disulfide, molybdenum diselenide, and tungsten diselenide. Recent advances in high-resolution transmission electron microscopy (HRTEM) have made atomic-resolution imaging possible, thus enabling one to closely examine real and reciprocal spac...

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