Large area self-ordered parallel C60 molecular nanowire arrays on Si(110) surfaces

Hong, Ie-Hong; Gao, Chia-Jung

doi:10.1016/j.carbon.2016.06.105

Cited by 10 publications

(3 citation statements)

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“…This low reactivity together with their single domain growth may be utilized to promote the growth of one-dimensionally ordered structures, e.g., of organic molecules. Such ordering was already shown for fullerenes on the clean substrate 57 , and may be possible for less inert molecules using the Au silicide nanowires as template. Furthermore, the electronic band structure of the nanowires may show one-dimensional characteristics due to the low heights and widths of the nanowires, which will have to be proven by angle-resolved PES.…”

Section: Discussionsupporting

confidence: 59%

Investigation of single-domain Au silicide nanowires on Si(110) formed for Au coverages in the monolayer regime

Appelfeller

2021

Sci Rep

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The self-organized formation of single domain Au silicide nanowires is observed on Si(110). These nanowires are analysed using scanning tunnelling microscopy (STM) and spectroscopy (STS) as well as photoemission spectroscopy (PES). Core-level PES is utilised to confirm the formation of Au silicide and establish its presence as the top most surface structure, i.e., the nanowires. The growth of the Au silicide nanowires and their dimensions are studied by STM. They form for Au coverages of about 1 monolayer and are characterized by widths of about 2 to 3 nm and heights below 1 nm while reaching lengths exceeding 500 nm when choosing appropriate annealing temperatures. Valence band PES and STS indicate a small but finite density of states at the Fermi level typical for compound metals.

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Section: Discussionsupporting

confidence: 59%

Investigation of single-domain Au silicide nanowires on Si(110) formed for Au coverages in the monolayer regime

Appelfeller

2021

Sci Rep

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“…Eskandari and co-workers [47] investigated the interactions between fullerene and β-CD-g-hyperbranched polyglycerol to produce water-soluble fullerene. Hong and co-workers [48] fabricated large area self-ordered parallel C 60 molecular nanowire arrays on Si (110) surfaces. Liu and co-workers [49] synthesized C 60 nano-assemblies at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

Photo-Induced Charge Generation of TiO<sub>2</sub> Nanotube Modified with Polymer Containing C<sub>60</sub> under Irradiation of Visible Light and its Applications

Wang

Qiu

et al. 2017

MSF

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Due to its excellent physical properties and inert chemical reaction activity of C60, it is possible to synthesize solution-processing polymer containing C60 utilizing the inclusive characteristics of polymer chain segment, and then to prepare organic/inorganic nanocomposites with enhanced some key properties. In order to harvest the visible light of TiO2 effectively the surface modification of TiO2 nanotube with polymer containing C60 was carried out in this study. A series of characterizations were performed by SEM (scanning electron microscopy), TEM (transmission electron microscopy), Fourier-Transform Infrared (FTIR) spectra, UV-Vis (Ultra-violet visible spectroscopy), XRD patterns analysis. The results showed that the UV-Vis of resulting nanocomposite was almost covered the whole region of visible light. The photoconductivity response to visible light with low-power were studied based on interdigital electrodes of Au on flexible PET (polyethylene terephthalate) film substrate with casting method. The results indicated that the photoresponses of two kinds of polymer containing C60 to weak visible light emerged photo-switching behavior, its recoverability was also rapidly, and the photoresponse of TiO2 nanotube modified with two kinds of polymer containing C60 to weak visible light also changed greatly. This illustrated that the organic-inorganic nanocomposites showed good activities to weak visible light. Photocatalytic efficiency was examined by selecting typical organic pollutants, some good results were obtained. It may develop organic-inorganic nanocomposites with external stimuli response, photocatalyst, et al.

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“…The second feature became especially atrractive due to the recent success in the formation of singledomain (16 × 2) reconstruction on the Si(1 1 0) surface [22,23]. This makes (1 1 0) surfaces very convenient substrates for the growth of one-dimensional objects, such as nanowires [24][25][26][27][28][29]. It is also worth noting that, among all low-index silicon and germanium surfaces, (1 0 0), (1 1 1) and (1 1 0) [ Fig.…”

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confidence: 99%

Universal building block for (1 1 0)-family silicon and germanium surfaces

Жачук

Shklyaev

2019

Applied Surface Science

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The universal building block which is an essential part of all atomic structures on (1 1 0) silicon and germanium surfaces and their vicinals is proposed by combining first-principles calculations and scanning tunneling microscopy (STM). The atomic models for the (1 1 0)−(16×2), (1 1 0)−c(8×10), (1 1 0) − (5 × 8) and (17 15 1) − (2 × 1) surface reconstructions are developed on the basis of the building block structure. The models exhibit very low surface energies and excellent agreements with bias-dependent STM images. It is shown that the Si(47 35 7) surface shares the same building block. Our study closes the long-debated pentagon structures on (1 1 0) silicon and germanium surfaces.Over the past three decades, large efforts have been made to understand the atomic and electronic structure of (1 1 0) silicon and germanium surfaces using scanning tunneling microscopy (STM) and spectroscopy, photoelectron spectroscopy and first principles calculations [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. This indicates both the complexity of the task and its high scientific relevance. One of the reasons for the persistent interest to these surfaces is their peculiar properties, such as high hole mobility in the devices fabricated on the Si(1 1 0) surface [21] and strong surface anisotropy. The second feature became especially atrractive due to the recent success in the formation of singledomain (16 × 2) reconstruction on the Si(1 1 0) surface [22,23]. This makes (1 1 0) surfaces very convenient substrates for the growth of one-dimensional objects, such as nanowires [24][25][26][27][28][29]. It is also worth noting that, among all low-index silicon and germanium surfaces, (1 0 0), (1 1 1) and (1 1 0) [ Fig. 1(a)], only the (1 1 0) structure is still not understood, and, therefore, it is of signifcant academic interest as well.The common feature of all reconstructed (1 1 0) silicon and germanium surfaces is the presence of bright spots exhibiting pentagonal or tetragonal shapes (hereafter polygons) in high-resolution STM images depending on acquisition conditions [4,11]. When the Ge(1 1 0) surface is observed at an elevated temperature (above 430 • C), the polygons are closely packed and show no long range order [8,14,30]. However, when the temperature is lowered to about 380 • C the polygons begin to line up and their density is lowered, indicating the formation of the c(8×10) reconstruction. A very long annealing at 380 • C converts the c(8 × 10) reconstruction into the (16 × 2) surface structure. Thus, the (16 × 2) reconstruction is equilibrium, while the c(8 × 10) surface structure is only a transient (metastable) structure of the Ge (1 1 0) surface. The structural transformations on the Si(1 1 0) surface are similar to those of the Ge (1 1 0) surface, but the transient structure is (5 × 8) [16]. The formation of polygons in varied experimental conditions at various temperatures is a strong indication of their exceptional stability owing to low formation energy values. Figure 1. (a) Unit stere...

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Large area self-ordered parallel C60 molecular nanowire arrays on Si(110) surfaces

Cited by 10 publications

References 57 publications

Investigation of single-domain Au silicide nanowires on Si(110) formed for Au coverages in the monolayer regime

Investigation of single-domain Au silicide nanowires on Si(110) formed for Au coverages in the monolayer regime

Photo-Induced Charge Generation of TiO<sub>2</sub> Nanotube Modified with Polymer Containing C<sub>60</sub> under Irradiation of Visible Light and its Applications

Universal building block for (1 1 0)-family silicon and germanium surfaces

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