ZnO Nanorod−Graphene Hybrid Architectures for Multifunctional Conductors

Lee, Jung Min; Pyun, Yong Bum; Yi, Jaeseok; Choung, Jae Woong; Park, Won Il

doi:10.1021/jp9078713

Cited by 166 publications

(126 citation statements)

References 29 publications

(42 reference statements)

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“…They include oxides (e.g. Fe 2 O 3 , [ 63 , 242 ] Fe 3 O 4 , [ 63 , 243-245 ] Al 2 O 3 , [ 246 , 247 ] SnO 2 , [ 73 , 248-250 ] NiO, [ 249 ] MnO 2 , [ 249 , 251 ] TiO 2 , [252][253][254][255][256][257] ZnO, [258][259][260] Cu 2 O [ 261 ] and Co 3 O 4 , [ 241 , 262 , 263 ] ), hydroxides (e. g. Co(OH) 2 [ 264 , 265 ] and Ni(OH) 2 [ 266 , 267 ] ) and salts (e.g. smectite, [ 268 ] ZnS, [ 269 ] CdS, [269][270][271][272] CdSe, [ 273 , 274 ] and LiFePO 4 [ 275 ] ).…”

Section: Composites With the Nanoparticles Of Metal Compoundsmentioning

confidence: 99%

Functional Composite Materials Based on Chemically Converted Graphene

2011

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Graphene, a one-atom layer of graphite, possesses a unique two-dimensional structure and excellent mechanical, thermal, and electrical properties. Thus, it has been regarded as an important component for making various functional composite materials. Graphene can be prepared through physical, chemical and electrochemical approaches. Among them, chemical methods were tested to be effective for producing chemically converted graphene (CCG) from various precursors (such as graphite, carbon nanotubes, and polymers) in large scale and at low costs. Therefore, CCG is more suitable for synthesizing high-performance graphene based composites. In this progress report, we review the recent advancements in the studies of the composites of CCG and small molecules, polymers, inorganic nanoparticles or other carbon nanomaterials. The methodology for preparing CCG and its composites has been summarized. The applications of CCG-based functional composite materials are also discussed.

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Section: Composites With the Nanoparticles Of Metal Compoundsmentioning

confidence: 99%

Functional Composite Materials Based on Chemically Converted Graphene

2011

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“…Recently, there have been reports of the growth of 1D ZnO nanorods and nanowires on graphene using high-temperature metal organic vapor phase epitaxy (MOVPE) and a photolithography-patterned ZnO seed layer based on a solution method, respectively [15,16]. 1D ZnO nanostructure growth with the MOVPE process usually requires high growth temperatures over 400 °C , even if no catalyst is used, indicating difficulty in its use in fabricating flexible electronics based on plastic substrates.…”

Section: Introductionmentioning

confidence: 99%

Selective growth of ZnO nanorods on SiO2/Si substrates using a graphene buffer layer

et al. 2011

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A promising strategy for the selective growth of ZnO nanorods on SiO 2 /Si substrates using a graphene buffer layer in a low temperature solution process is described. High densities of ZnO nanorods were grown over a large area and most ZnO nanorods were vertically well-aligned on graphene. Furthermore, selective growth of ZnO nanorods on graphene was realized by applying a simple mechanical treatment, since ZnO nanorods formed on graphene are mechanically stable on an atomic level. These results were confirmed by first principles calculations which showed that the ZnO-graphene binding has a low destabilization energy. In addition, it was found that ZnO nanorods grown on SiO 2 /Si with a graphene buffer layer have better optical properties than ZnO nanorods grown on bare SiO 2 /Si. The nanostructured ZnO-graphene materials have promising applications in future flexible electronic and optical devices.

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“…[1][2][3][4][5][6] Recently, due to surging demand for flexible displays and wearable mobile devices, fabrication of high-performance electronics on large-scale non-crystalline substrates has become increasingly important. For such applications, polycrystalline or amorphous ZnO thin films have typically been deposited on amorphous substrates.…”

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confidence: 99%

Growth and optical characteristics of high-quality ZnO thin films on graphene layers

et al. 2015

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We report the growth of high-quality, smooth, and flat ZnO thin films on graphene layers and their photoluminescence (PL) characteristics. For the growth of high-quality ZnO thin films on graphene layers, ZnO nanowalls were grown using metal-organic vapor-phase epitaxy on oxygen-plasma treated graphene layers as an intermediate layer. PL measurements were conducted at low temperatures to examine strong near-band-edge emission peaks. The full-width-at-half-maximum value of the dominant PL emission peak was as narrow as 4 meV at T = 11 K, comparable to that of the best-quality films reported previously. Furthermore, the stimulated emission of ZnO thin films on the graphene layers was observed at the low excitation energy of 180 kW/cm2 at room temperature. Their structural and optical characteristics were investigated using X-ray diffraction, transmission electron microscopy, and PL spectroscopy.

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ZnO Nanorod−Graphene Hybrid Architectures for Multifunctional Conductors

Cited by 166 publications

References 29 publications

Functional Composite Materials Based on Chemically Converted Graphene

Functional Composite Materials Based on Chemically Converted Graphene

Selective growth of ZnO nanorods on SiO2/Si substrates using a graphene buffer layer

Growth and optical characteristics of high-quality ZnO thin films on graphene layers

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