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Search for "caesium" in Full Text gives 4 result(s) in Beilstein Journal of Nanotechnology.
Dual-heterodyne Kelvin probe force microscopy
- Benjamin Grévin,
- Fatima Husainy,
- Dmitry Aldakov and
- Cyril Aumaître
Beilstein J. Nanotechnol. 2023, 14, 1068–1084, doi:10.3762/bjnano.14.88
- reference substrate, a bulk organic photovoltaic heterojunction thin film, and an optoelectronic interface obtained by depositing caesium lead bromide perovskite nanosheets on a graphite surface. The conclusion provides perspectives for future improvements and applications. Keywords: heterodyne
- optoelectronic interfaces formed between caesium lead bromide perovskite nanosheets and highly oriented pyrolytic graphite. Kelvin Probe Force Microscopy Background, Amplitude-Modulated Heterodyne KPFM Many KPFM modes rely on the detection of a modulated component of the electrostatic force proportional to the
- depositing caesium lead halide perovskite nanosheets (NSs) on a highly oriented pyrolytic graphite (HOPG) substrate. Lead halide perovskites have emerged recently as materials with unique optical and electronic properties, such as high absorption coefficients, high defect tolerance, and charge mobility. Due
Figure 1: The implementation of DHe-KPFM. The real geometry of the sample stage (backside or front side illum...
Figure 2: Benchmarking of DHe-KPFM under electrical pumping. Plots of the demodulated amplitude and phase (lo...
Figure 3: The SPV imaging of an organic solar cell by DHe-KPFM. Topographic (a) and DHe-KPFM (b,c) images (50...
Figure 4: Data-cube DHe-KPFM spectroscopy. Topographic (a) and spectroscopic (b,c,d,e) data acquired onto a 2...
Figure 5: Imaging the photoresponse of a CsPbBr3:HOPG interface. (a,b,c,f) Data acquired by differential SPV ...
Materials nanoarchitectonics at two-dimensional liquid interfaces
- Katsuhiko Ariga,
- Michio Matsumoto,
- Taizo Mori and
- Lok Kumar Shrestha
Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153
- -exchangers, and indicative dyes were incorporated in an optode system detecting caesium ions in tap water and seawater [80]. Photo-controllable molecular devices were successfully fabricated using two-dimensional self-assembled monolayer technology as recently reviewed by Suda [81]. Hierarchic functional
Figure 1: Various low-dimensional materials (zero-dimensional, one-dimensional, and two-dimensional materials...
Figure 2: Outline of nanoarchitectonics strategies to obtain structures and functions through the manipulatio...
Figure 3: Systematic studies on binding constants for phosphate and guanidinium in different aqueous environm...
Figure 4: A model for calculations of the binding constant between guanidinium and phosphate at the air–water...
Figure 5: Formation of two-dimensional patterned structures using flavin adenine dinucleotide (FAD), which ca...
Figure 6: Formation of two-dimensional arrays of nanodisk-like assemblies via touching transfer of a monolaye...
Figure 7: Difference of one-dimensional assemblies of an oligo(p-phenylenevinylene) derivative formed in diff...
Figure 8: Formation of one-dimensional supramolecular polymerization of DNA origami pieces upon repeated mech...
Figure 9: Formation of a two-dimensional iron–nickel cyanide-bridged network at the air–water interface throu...
Figure 10: Fabrication of a multilayer of oriented porphyrin-based MOF films by repeatingly transferring and w...
Figure 11: Electrochromic bis(terpyridine)metal complex MOF nanosheets formed through coordination of terpyrid...
Figure 12: Aqueous solutions of multi-amino-substituted monomers with p-toluene sulfonic acid were layered on ...
Figure 13: Confined polymerization at the interface by spatially segregating a catalyst from the COF monomers....
Figure 14: Fabrication of two-dimensional nanocarbon films from a carbon nanoring molecule (9,9′,10,10′-tetrab...
Figure 15: Liquid–liquid interfacial precipitation to fabricate fullerene assemblies (crystals) with various m...
Figure 16: Conversion of one-dimensional C60 nanotubes precipitated at liquid-liquid interface to one-dimensio...
Figure 17: Nanoporous bitter-melon-shaped C60 crystals with face-centered cubic lattice fabricated through liq...
Figure 18: Two-dimensional C60 hexagonal nanosheets with hierarchic pore systems of macropores and mesopores p...
Figure 19: Synthesis of two-dimensional mesoporous C60-based carbon microbelts by liquid–liquid interfacial pr...
Figure 20: Highly integrated three-dimensional Bucky cubes synthesized by liquid–liquid interfacial precipitat...
Figure 21: Three-dimensional cubic structures can be fabricated from C70 molecules through an ultrasound-assis...
Figure 22: Hole-in-cube structures made from C70 molecules with hole closing and re-opening and particle-trap ...
Figure 23: Time-dependent shape shift of co-assemblies of two fullerene derivatives, pentakis(phenyl)fullerene...
Figure 24: A monolayer of glucose oxidase complexed with a cationic lipid was transferred onto a surface of an...
Figure 25: Cultures, organizations, and differentiation controls of living cells a liquid-liquid interface bet...
Figure 26: Human mesenchymal stem cells at the interface between aqueous medium and fluorocarbon phase with se...
Figure 27: One-dimensional C60 nanowhiskers with controlled alignment and curvature fabricated by a vortex LB ...
Figure 28: Highly aligned arrays of C60 nanowhiskers obtained by using a LB method with reciprocal motion in o...
Synthesis and applications of carbon nanomaterials for energy generation and storage
- Marco Notarianni,
- Jinzhang Liu,
- Kristy Vernon and
- Nunzio Motta
Beilstein J. Nanotechnol. 2016, 7, 149–196, doi:10.3762/bjnano.7.17
Figure 1: (a) Global energy consumption growth from 1965 to 2013. (b) The share of different energy sources f...
Figure 2: (a) Carbon concentration in the energy mixture from 1890–2100 (projected), i.e., kilograms of carbo...
Figure 3: Hybridization states of carbon-based nanomaterials. Reprinted with permission from [19]. Copyright (200...
Figure 4: Structure of the most significant fullerenes, C60 and the C70. All fullerenes exhibit hexagonal and...
Figure 5: Schematic depiction of an auto-loading version of an arc-discharge apparatus used for fullerene pro...
Figure 6: Diffusion flame chamber for fullerene production. Reprinted with permission from [31]. Copyright (2000)...
Figure 7: Formation of C60 through dehydrogenation/dehydrochlorination. Reprinted with permission from [32]. Copy...
Figure 8: Synthesis of PC61BM by reaction between C60 and diazoalacane with subsequent refluxing with o-dichl...
Figure 9: Graphene and carbon nanotubes as a (a) single-walled carbon nanotube (SWCNT) and (b) multiwall carb...
Figure 10: Schematic models for SWCNTs with the nanotube axis normal to the chiral vector, which, in turn, is ...
Figure 11: Schematic representation of methods used for carbon nanotube synthesis: (a) arc discharge; (b) chem...
Figure 12: Honeycomb lattice of graphene. Graphene layers can be stacked into graphite or rolled up into carbo...
Figure 13: (a) Representation of the electronic band structure and Brillouin zone of graphene; (b) The two gra...
Figure 14: Several methods for the mass production of graphene that allow a wide choice in terms of size, qual...
Figure 15: Graphene-based display and electronic devices. Display applications are shown in green; electronic ...
Figure 16: (a) Schematic illustration and photo of the electrochemical exfoliation process for graphite. (b) P...
Figure 17: Chemical structure of graphene oxide with functional groups. A: Epoxy bridges, B: hydroxy groups, C...
Figure 18: Atomic resolution, aberration-corrected TEM image of a single layer, H-plasma-reduced GO membrane. ...
Figure 19: (a) Low magnification and (b) high magnification SEM images of graphite oxide flakes [112].
Figure 20: High resolution C 1s XPS spectra: deconvoluted peaks with increasing reduction temperature (Tr). (a...
Figure 21: Plot of sheet resistance against annealing temperature with a comparison to key carbon and oxygen r...
Figure 22: CVD graphene. (a) Schematic of the transfer of graphene produced on Cu using the roll-to-roll metho...
Figure 23: Millimeter-sized graphene grains produced on polished and annealed Cu foils. (a) Schematic of the c...
Figure 24: Millimeter-sized graphene grains produced on the inside of enclosure-like Cu structures. (a) Schema...
Figure 25: Millimeter-sized graphene grains made on resolidified Cu. (a) Schematic of the Cu resolidification ...
Figure 26: The characteristic tetrahedron building block of all SiC crystals. Four carbon atoms are covalently...
Figure 27: Schematic representation of the stacking sequence of hexagonal SiC bilayers for 2H, 3C, 4H and 6H p...
Figure 28: Number of graphene layers grown by annealing 3C-SiC for 10 h in UHV as a function of temperature. R...
Figure 29: TEM images of MLG on the C-face. (a) A cross-sectional TEM image. (b) A low-magnification TEM image...
Figure 30: High frequency graphene transistor. (a) and (b) Structure of a graphene-based FET for an analogue r...
Figure 31: Record solar cell efficiencies, worldwide, as reported by NREL in 2014 [180].
Figure 32: Photocurrent generation steps in an organic solar cell. Step 1: photon absorption in the conducting...
Figure 33: (a) Electron transfer from P3HT to PCBM after generation of the exciton at the interface of the two...
Figure 34: (a) Schematic of a regular organic solar cell structure. (b) Schematic of an inverted organic solar...
Figure 35: Simple equivalent circuit for a solar cell.
Figure 36: I–V curves of a solar cell. IL indicates the current under illumination. Voc and Isc represent the ...
Figure 37: Detailed equivalent circuit for a solar cell.
Figure 38: UV–vis spectra of PC71BM and PC61BM, both in toluene. To illustrate the contribution of MDMO-PPV to...
Figure 39: (a) Molecular dynamics simulations of P3HT wrapped around a SWNT (15,0). Reprinted with permission ...
Figure 40: (a) and (b) TEM images of P3HT wrapping around a SWNT (7,6) (images taken at QUT, not yet published...
Figure 41: Schematic of an organic solar cell with a transparent graphene electrode. Reprinted with permission...
Figure 42: (a) Schematic of a photovoltaic device with a P3HT/GO–PITC thin film as the active layer and the st...
Figure 43: (a) Schematic illustration of a device structure with GO as the buffer layer. (b) Energy level diag...
Figure 44: Device structures (a) and energy level diagrams (b) of the normal device and the inverted device wi...
Figure 45: Addition of a small amount of SWCNTs into the GO buffer layer can increase the FF and JSC of device...
Figure 46: (a) Structure of carbon solar cells where TFB and PEDOT/PSS are the electron-blocking and hole-cond...
Figure 47: Schematic of the two basic all carbon nanomaterial-based solar cell device structures: (a) a typica...
Figure 48: Energy density vs power density (Ragone plot) for various energy storage devices [257].
Figure 49: Hierarchical classification of supercapacitors and related types [259].
Figure 50: Charge and discharge processes of an EDLC.
Figure 51: Models of the electrical double layer at a positively charged surface: (a) the Helmholtz model, (b)...
Figure 52: Simple equivalent circuit.
Figure 53: CV curve of an ideal supercapacitor.
Figure 54: Simulation of CV curves with increasing internal resistance (1, 5, 10, 25 and 50 Ω) at 20 mV/s scan...
Figure 55: Simulation of the charge/discharge curves with increasing internal resistance (0, 1, 5, 10 and 25 Ω...
Figure 56: Schematic representation of the Nyquist impedance plot of an ideal capacitor (vertical thin line) a...
Figure 57: Schematic illustration of the space in a carbon nanotube bundle available for the storage of electr...
Figure 58: Comparison of conducting paths for electron and electrolyte ions in aligned carbon nanotubes and gr...
Figure 59: CV curves of the EDLC using the SWNT solid sheet (red) and as-grown forest (black) as electrodes, c...
Figure 60: SEM images of CNT–carbon aerogel nanocomposites. Reprinted with permission from [289]. Copyright (2008) ...
Figure 61: Graphene-based EDLCs utilizing chemically modified graphene as electrode materials. (a) Scanning el...
Figure 62: Morphology of graphene oxide and graphene-based materials. (a) Tapping-mode AFM image of graphene o...
Figure 63: (a–d) Schematic illustration of the process to make laser-scribed graphene-based electrochemical ca...
Figure 64: (a–c) Schematic diagram showing the fabrication process for a laser-scribed graphene micro-supercap...
Figure 65: (a) SEM image of the interior microstructure of a graphene hydrogel. (b) Photograph of the flexible...
Figure 66: (a) Schematic illustration of a supercapacitor cell fabricated from reduced graphite oxide (rGO) an...
Figure 67: (a) and (b) are schematic, equivalent circuit illustrations for a polymer solar cell and a supercap...
Highly NO2 sensitive caesium doped graphene oxide conductometric sensors
- Carlo Piloto,
- Marco Notarianni,
- Mahnaz Shafiei,
- Elena Taran,
- Dilini Galpaya,
- Cheng Yan and
- Nunzio Motta
Beilstein J. Nanotechnol. 2014, 5, 1073–1081, doi:10.3762/bjnano.5.120
- Institute for Bioengineering and Nanotechnology, Australian National Fabrication Facility - QLD Node, Brisbane, QLD 4072, Australia 10.3762/bjnano.5.120 Abstract Here we report on the synthesis of caesium doped graphene oxide (GO-Cs) and its application to the development of a novel NO2 gas sensor. The GO
- studied by varying the gas concentration. The developed GO-Cs sensor shows a higher response to NO2 than the pristine GO based sensor due to the oxygen functional groups. The detection limit measured with GO-Cs sensor is ≈90 ppb. Keywords: caesium; conductometric; doping; drop casting; gas sensor
- performance of a caesium-doped GO (GO-Cs) based conductometric sensor. Due to the reported catalytic activity of Cs, we believe that the sensing performance of the GO can be improved significantly [53]. Both pristine GO and Cs doped GO sensors have been tested towards different concentrations of NO2 gas at
Figure 1: (a) Low magnification and (b) high magnification SEM images of graphite oxide flakes.
Figure 2: AFM and KPFM images of (a) and (b) a GO flake (2 × 2 μm); (c) and (d) a GO-Cs flake (1.4 × 1.4 μm).
Figure 3: (a) XPS survey spectrum of GO (blue line) and GO-Cs (red line); High resolution XPS C1s spectra of ...
Figure 4: Raman spectra of GO-Cs and GO, displaying intense D and G peaks at ≈1380 and ≈1600 cm−1, respective...
Figure 5: Response of the GO and GO-Cs based sensors as a function of NO2 concentration. The inset shows the ...
Figure 6: Response of (a) GO-Cs and GO based sensors towards NO2 with concentrations higher than 1 ppm; (b) G...
