Journal ArticleDOI
One-step aqueous synthesis of graphene–CdTe quantum dot-composed nanosheet and its enhanced photoresponses
Zhisong Lu,Chunxian Guo,Hongbin Yang,Yan Qiao,Jun Guo,Chang Ming Li +5 more
- Vol. 353, Iss: 2, pp 588-592
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TLDR
Graphene-CdTe QD composed nanosheets were one-step synthesized in aqueous solution using a hydrothermal method and demonstrated enhanced photoresponses, rendering potentials in optoelectronics applications.Abstract:
Although CdTe nanocrystal has been applied in quantum dot (QD)-based solar cells, there is no report on a graphene–CdTe QD hybrid system and its photoresponses. In this work, graphene–CdTe QD composed nanosheets were one-step synthesized in aqueous solution using a hydrothermal method and demonstrated enhanced photoresponses, rendering potentials in optoelectronics applications. This work could provide an environmental-friendly and universal approach to fabricate graphene-based hybrid nanomaterials for various applications.read more
Citations
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Design, Synthesis, and Characterization of Graphene–Nanoparticle Hybrid Materials for Bioapplications
TL;DR: Graphene nanoparticle hybrids exist in two forms, as graphene–nanoparticle composites and graphene-encapsulated nanoparticles, and can be used for various bioapplications including biosensors, photothermal therapies, stem cell/tissue engineering, drug/gene delivery, and bioimaging.
Journal ArticleDOI
Graphene─inorganic nanocomposites
Song Bai,Xiaoping Shen +1 more
TL;DR: An overview of the synthesis and application of GN-inorganic nanocomposites is presented in this paper, where the challenges and perspective of these emerging nanocompositionites are also discussed.
Journal ArticleDOI
Electrochemical sensors based on graphene materials
TL;DR: In this article, the authors give a general view of recent advances in electrochemical sensors based on graphene and highlight important applications of graphene and graphene nanocomposites, and the assay strategies for DNA, proteins, neurotransmitters, phytohormones, pollutants, metal ions, gases, hydrogen peroxide, and in medical, enzymatic and immunosensors.
Journal ArticleDOI
Nanocomposites and macroscopic materials: assembly of chemically modified graphene sheets
TL;DR: The state-of-the-art self-assembly strategies that have been established to construct CMG based nanomaterials, including nanoparticles, nanospheres, nanofibers, nanorods, nanosheets, and macroscopic thin films, fibers and porous networks are summarized.
Journal ArticleDOI
Size-Dependent Energy Transfer between CdSe/ZnS Quantum Dots and Gold Nanoparticles
Ming Li,Scott K. Cushing,Qiaoyi Wang,Xiaodong Shi,Lawrence A. Hornak,Zhanglian Hong,Nianqiang Wu +6 more
TL;DR: In this paper, the effect of the particle size on the energy transfer from CdSe/ZnS quantum dots to the proximal gold nanoparticles with different sizes was investigated.
References
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Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Sasha Stankovich,Dmitriy A. Dikin,Richard D. Piner,Kevin A. Kohlhaas,Alfred Kleinhammes,Yuanyuan Jia,Yue Wu,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: In this paper, a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high surface area carbon material which consists of thin graphene-based sheets.
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Honeycomb Carbon: A Review of Graphene
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Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals
TL;DR: In this article, the extinction coefficient per mole of nanocrystals at the first exitonic absorption peak, e.g., for high-quality CdTe, CdSe, and CdS, was found to be strongly dependent on the size of the nanocrystal, between a square and a cubic dependence.
Journal ArticleDOI
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
TL;DR: In this paper, three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell, (ii) polymer−smiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell.