Orientation-dependent photonic bandgaps in gold-dust weevil scales and their titania bioreplicates

• Norma Salvadores Farran,
• Limin Wang,
• Primoz Pirih and
• Bodo D. Wilts

Beilstein J. Nanotechnol. 2025, 16, 1–10, doi:10.3762/bjnano.16.1

• lattice parameter of 400 nm and a solid fill fraction of 0.44, with a refractive index of cuticular chitin [4]. Simulations of the negative template had the inverse network with a solid fill fraction of 0.56 and a refractive index between 1.55 and 2.00. Light, with wavelengths of 400–800 nm, was incident

The role of a tantalum interlayer in enhancing the properties of Fe₃O₄ thin films

• Hai Dang Ngo,
• Vo Doan Thanh Truong,
• Van Qui Le,
• Hoai Phuong Pham and
• Thi Kim Hang Pham

Beilstein J. Nanotechnol. 2024, 15, 1253–1259, doi:10.3762/bjnano.15.101

• following relation [27][28]: where a0 is the lattice parameter of bulk Fe3O4 (a0 = 8.397 Å [29]). Microstrain is a crucial factor that helps to analyze the existence of strain and deformation in thin films [30][31]. The d-spacing values of the Fe3O4(311) and Fe3O4(400) peaks of sample 3 are 2.514 and 2.085

Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

• Maria J. Martínez-Carreón,
• Francisco Solís-Pomar,
• Abel Fundora,
• Claudio D. Gutiérrez-Lazos,
• Sergio Mejía-Rosales,
• Hector N. Fernández-Escamilla,
• Jonathan Guerrero-Sánchez,
• Manuel F. Meléndrez and
• Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

• this model, we deposited a Pd slab on top of a Ag slab. The lattice mismatch between them is 4.6%. In this way, the Pd lattice parameter is adjusted to the Ag parameter. The calculated Ag–Pd (111) distance at the interface is 2.31 Å. Meanwhile, the interplanar distances after the interface layers shift

• circumstances, to model the AgPd alloy, an Ag(111)-(2 × 2 × 3) supercell made of 36 Ag atoms was used; then, Pd atoms were systematically incorporated one at a time by atomic substitutions. Each atomic position and lattice parameter were optimized, selecting the energetically most favorable configurations in

• (see Figure 7a). Therefore, we used Ag3Pd as the AgPd alloy to model the Ag/AgPd and Ag/AgPd/Pd Janus systems and to analyze the (111) interplanar distances. The calculated Ag3Pd lattice parameter is 5.74 Å, 0.08 Å shorter than the Ag(111) lattice parameter because of the smaller atomic radius of the

Reduced subthreshold swing in a vertical tunnel FET using a low-work-function live metal strip and a low-k material at the drain

• Kalai Selvi Kanagarajan and
• Dhanalakshmi Krishnan Sadhasivan

Beilstein J. Nanotechnol. 2024, 15, 713–718, doi:10.3762/bjnano.15.59

• silicon, a low leakage current, and a lattice parameter that is close to that of silicon with a modest lattice misfit (ca. 5%) [11]. In this paper, a published VTFET structure is taken for comparison [12]. A large tunnel area and a thin channel enhance the device metrics [13]. In contrast to the

Photocatalytic degradation of methylene blue under visible light by cobalt ferrite nanoparticles/graphene quantum dots

• Vo Chau Ngoc Anh,
• Le Thi Thanh Nhi,
• Le Thi Kim Dung,
• Dang Thi Ngoc Hoa,
• Nguyen Truong Son,
• Nguyen Thi Thao Uyen,
• Nguyen Ngoc Uyen Thu,
• Le Van Thanh Son,
• Le Trung Hieu,
• Tran Ngoc Tuyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 475–489, doi:10.3762/bjnano.15.43

• the as-synthesized CoFe2O4 and CF/GQDs-200 are, respectively, about 17.2 and 9.2 nm. Since cobalt ferrite possesses an inverse spinel structure (space group ) [13], the ferrite lattice parameter of CF and CF/GQDs-200 is 8.394 Å, agreeing well with the bulk value of 8.377 Å [15]. The suspension of CF

Exploring disorder correlations in superconducting systems: spectroscopic insights and matrix element effects

• Vyacheslav D. Neverov,
• Alexander E. Lukyanov,
• Andrey V. Krasavin,
• Alexei Vagov,
• Boris G. Lvov and
• Mihail D. Croitoru

Beilstein J. Nanotechnol. 2024, 15, 199–206, doi:10.3762/bjnano.15.19

• single-particle states. We emphasize that in our study, all energy quantities are consistently represented in terms of the hopping integral t, while all lengths are standardized/expressed in units of the lattice parameter. Lastly, the quantities of interest are statistically averaged over Ns = 100

Isolation of cubic Si₃P₄ in the form of nanocrystals

• Polina K. Nikiforova,
• Sergei S. Bubenov,
• Vadim B. Platonov,
• Andrey S. Kumskov,
• Nikolay N. Kononov,
• Tatyana A. Kuznetsova and
• Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2023, 14, 971–979, doi:10.3762/bjnano.14.80

• subsequently treated as a cubic one belonging to the space group. The theoretical diffraction pattern for cubic Si3P4 with a lattice parameter of 5.04 Å and bond length of 2.27 Å (superimposed in Figure 2) follows the experimental diffractograms in terms of relative intensities. Three prominent maxima were

• parameters were reasonably close to that of [11] with a lattice parameter of 5.054 Å and bond length of 2.27 Å. The fully symmetric A1 vibration frequency was precisely determined in our calculations, while the others were off by up to ca. 34 cm−1 with respect to the experimental values. This discrepancy was

Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity

• Nguyen Thi Thanh Tu,
• T. Lan-Anh Vo,
• T. Thu-Trang Ho,
• Kim-Phuong T. Dang,
• Van-Dung Le,
• Phan Nhat Minh,
• Chi-Hien Dang,
• Vinh-Thien Tran,
• Van-Su Dang,
• Tran Thi Kim Chi,
• Hieu Vu-Quang,
• Radek Fajgar,
• Thi-Lan-Huong Nguyen,
• Van-Dat Doan and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64

• Scherrer equation, the crystallite sizes of AgNPs in the nanocomposites were estimated to be 17.3 ± 2.7 nm for AgNPs@Lac/Alg-0.3 and 14.8 ± 2.5 nm for AgNPs@Lac/Alg-0.7. The mean lattice parameter and the cell volume of AgNPs in AgNPs@Lac/Alg-0.3 were determined to be 4.09 ± 0.02 Å and 68.5 ± 1.0 Å3

The microstrain-accompanied structural phase transition from h-MoO₃ to α-MoO₃ investigated by in situ X-ray diffraction

• Zeqian Zhang,
• Honglong Shi,
• Boxiang Zhuang,
• Minting Luo and
• Zhenfei Hu

Beilstein J. Nanotechnol. 2023, 14, 692–700, doi:10.3762/bjnano.14.55

• be deformed or damaged. To estimate the CTE of the hexagonal phase h-MoO3, lattice parameters as a function of temperature were obtained from the Rietveld refinement of the in situ XRD patterns, as shown in Figure 4a. When the temperature was raised from 300 to 400 °C, the lattice parameter a and the

• unit cell volume increased roughly linearly with slopes of 769.14 × 10−6 and 0.04558, respectively, while the lattice parameter c decreased linearly with a slope of −72.37 × 10−6. The CTE can be calculated using the formula αx = (1/x)(dx/dT), where x represents the lattice parameters a, b, c, or the

Thermal transport in kinked nanowires through simulation

• Alexander N. Robillard,
• Graham W. Gibson and
• Ralf Meyer

Beilstein J. Nanotechnol. 2023, 14, 586–602, doi:10.3762/bjnano.14.49

• equilibrium temperature for a lengthy period, and the effective lattice parameter at simulation temperature was calculated by examining the system dimensions. This was used as the lattice parameter for the kinked wires. The kinked wires then also underwent a lengthy equilibration process to allow them to

Structural studies and selected physical investigations of LiCoO₂ obtained by combustion synthesis

• Monika Michalska,
• Paweł Ławniczak,
• Tomasz Strachowski,
• Adam Ostrowski and
• Waldemar Bednarski

Beilstein J. Nanotechnol. 2022, 13, 1473–1482, doi:10.3762/bjnano.13.121

• the grain boundaries, and the green line shows fit data for the grain interior (crystalline part of the sample). Lattice parameter, cell volume, average crystallite size (XRD), and specific surface area of LiCoO2 powders. DC conductivity of the LiCoO2 samples measured at 293 K. The values present only

Self-assembly of C₆₀ on a ZnTPP/Fe(001)–p(1 × 1)O substrate: observation of a quasi-freestanding C₆₀ monolayer

• Guglielmo Albani,
• Michele Capra,
• Alessandro Lodesani,
• Alberto Calloni,
• Gianlorenzo Bussetti,
• Marco Finazzi,
• Franco Ciccacci,
• Alberto Brambilla,
• Lamberto Duò and
• Andrea Picone

Beilstein J. Nanotechnol. 2022, 13, 857–864, doi:10.3762/bjnano.13.76

•  2b shows a blowup of one fullerene domain, where individual C60 molecules are visible inside a hexagonal lattice with a lattice parameter of about 1 nm, a value very similar to that measured in C60 films stabilized on either metallic [51] or oxide [25] substrates. Figure 2c shows the fast Fourier

Topographic signatures and manipulations of Fe atoms, CO molecules and NaCl islands on superconducting Pb(111)

• Carl Drechsel,
• Philipp D’Astolfo,
• Jung-Ching Liu,
• Thilo Glatzel,
• Rémy Pawlak and
• Ernst Meyer

Beilstein J. Nanotechnol. 2022, 13, 1–9, doi:10.3762/bjnano.13.1

• ) and Pb(110) Figure 1 shows STM images of CO molecules adsorbed on Pb(111). With a lattice parameter of aPb = 4.95 Å, the height of monoatomic steps of the Pb(111) surface is expected to be hPb = = 2.85 Å. Experimentally, a pristine Pb(111) sample (Figure 1a) shows, after sputtering and annealing

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

• Muhammad Atif Sattar,
• Najwa Al Bouzieh,
• Maamar Benkraouda and
• Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

• the space group of P213 (no. 198) of the 64-atom unit cell with an exceptionally large lattice parameter of 11.9702 Å according to X-ray diffraction using the Rietveld method [47]. The unit cell of π-SnSe is presented in Figure 1. There are 64 atoms (Sn = 32, Se = 32) in the primitive unit cell of the

• optimized lattice parameter of 12.108 Å obtained from the PBEsol functional matches well with the experimentally reported lattice parameter (11.9702 Å), as PBE GGA gives a slightly higher value of 12.284 Å [47]. Electronic properties After optimizing the lattice structure of π-SnSe and obtaining the lattice

• parameter close to the experimental value, we investigated the electronic structure of π-SnSe. The density of states (DOS) plot for the π-SnSe calculated by the meta GGA-mBJ is presented in Figure 3. The upper valence band is majorly contributed by the p states of Se and Sn atoms with a small share of Sn s

Influence of electrospray deposition on C₆₀ molecular assemblies

• Antoine Hinaut,
• Sebastian Scherb,
• Sara Freund,
• Zhao Liu,
• Thilo Glatzel and
• Ernst Meyer

Beilstein J. Nanotechnol. 2021, 12, 552–558, doi:10.3762/bjnano.12.45

• nanometers in size are observed, suggesting a limited influence of the HV-ESD method. The C60 molecules cover step edges and form monolayer islands, similar to TE. High-resolution imaging of the islands, shown in Figure 2c, confirms the hexagonal lattice arrangement of C60 with a lattice parameter close to 1

Reconstruction of a 2D layer of KBr on Ir(111) and electromechanical alteration by graphene

• Zhao Liu,
• Antoine Hinaut,
• Stefan Peeters,
• Sebastian Scherb,
• Ernst Meyer,
• Maria Clelia Righi and
• Thilo Glatzel

Beilstein J. Nanotechnol. 2021, 12, 432–439, doi:10.3762/bjnano.12.35

• temperature and density functional theory (DFT) calculations. The results suggest that this particular reconstruction of KBr occurs on Ir(111), due to a specific correlation of the lattice parameter. When deposited on a single layer of graphene on the same substrate, the topography of the KBr islands returns

Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

• Petronela Prepelita,
• Florin Garoi and
• Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

• films are presented in Table 1. One of the films with the highest quality in terms of structure was the one deposited at a thickness of 300 nm. This is consistent with the value of the lattice parameter c = 5.2090 Å, indicating a good oxygenation. The 300 nm thick ZnO film proved to be improved in

The role of gold atom concentration in the formation of Cu–Au nanoparticles from the gas phase

• Yuri Ya. Gafner,
• Svetlana L. Gafner,
• Darya A. Ryzkova and
• Andrey V. Nomoev

Beilstein J. Nanotechnol. 2021, 12, 72–81, doi:10.3762/bjnano.12.6

• parameters were determined from 15 particles obtained from HRTEM images. From these measurements, the average lattice parameter of the synthesized Cu3Au nanoparticles was estimated to be 3.74 ± 0.01 Å. The fact that this value lies between the lattice parameters values of pure gold (aAu = 4.078 Å) and pure

• atoms in a nanoscale compact material. A similar effect can be observed in this case. According to Vegard’s law, the lattice parameter of bimetallic alloys varies linearly, depending on the composition, between the lattice parameters of the pure components. In the framework of the experiments shown in

• [3], its validity was also confirmed for the Cu–Au bimetallic nanoalloy case. The sample consisting of 20 ± 1 atom % Cu had an average lattice parameter of 3.99 ± 0.01 Å and, for a sample consisting of 73 ± 3 atom % Cu, the average lattice parameter was 3.74 ± 0.01 Å. For comparison, the lattice

Free and partially encapsulated manganese ferrite nanoparticles in multiwall carbon nanotubes

• Saja Al-Khabouri,
• Salim Al-Harthi,
• Toru Maekawa,
• Mohamed E. Elzain,
• Ashraf Al-Hinai,
• Ahmed D. Al-Rawas,
• Abbsher M. Gismelseed,
• Ali A. Yousif and
• Myo Tay Zar Myint

Beilstein J. Nanotechnol. 2020, 11, 1891–1904, doi:10.3762/bjnano.11.170

• the cubic spinel structure of free MnFe2O4 nanoparticles with a crystallite size of 12 ± 1 nm. The lattice parameter was found to be 0.8488 nm, which is in good agreement with the reported value of 0.8499 nm for bulk MnFe2O4 [14]. A careful analysis of the TEM images indicated that MnFe2O4

• largest-intensity peak of partially encapsulated manganese ferrite (311) is observed at θ = 17.51°, whereas, for the free MnFe2O4 nanoparticles, it is observed at θ = 17.70°. From the refinement, the estimated crystallite size is 10 ± 1 nm and lattice parameter is 0.83992 nm. The lattice parameter is 1

• % smaller than the lattice parameter of the reference pattern (0.84983 nm). The HRTEM image (Figure 5b), representing the manganese ferrite inside the tube, shows lattice fringes with a measured interfringe distance of 0.42 ± 0.01 nm, which is smaller than the reported interfringe distance of 0.49 nm for

Adsorption and self-assembly of porphyrins on ultrathin CoO films on Ir(100)

• Feifei Xiang,
• Tobias Schmitt,
• Marco Raschmann and
• M. Alexander Schneider

Beilstein J. Nanotechnol. 2020, 11, 1516–1524, doi:10.3762/bjnano.11.134

• -hexagonal layer with lattice parameter a2BL CoO = 3.0–3.1 Å [18]. STM images of both films show the positions of the oxygen atoms as bright protrusions [20]. Computational Methods Non-magnetic ab initio calculations were performed using the Vienna Ab-initio Simulation Package (VASP) [32] employing the PBE

3D superconducting hollow nanowires with tailored diameters grown by focused He⁺ beam direct writing

• Rosa Córdoba,
• Alfonso Ibarra,
• Dominique Mailly,
• Isabel Guillamón,
• Hermann Suderow and
• José María De Teresa

Beilstein J. Nanotechnol. 2020, 11, 1198–1206, doi:10.3762/bjnano.11.104

• (Figure 5). We indexed the spots indicated in the fast Fourier transform (Figure 5b) of the image in Figure 5a with the planes (−11−1), (−200) and (−1−11), and the [011] zone axis of the WC1−x fcc structure, with a lattice parameter of a = 0.4272 nm. A lower magnification STEM image of the NW grown at 1.3

Observation of unexpected uniaxial magnetic anisotropy in La_2/3Sr_1/3MnO₃ films by a BaTiO₃ overlayer in an artificial multiferroic bilayer

• John E. Ordóñez,
• Lorena Marín,
• Luis A. Rodríguez,
• Pedro A. Algarabel,
• José A. Pardo,
• Roger Guzmán,
• Luis Morellón,
• César Magén,
• Etienne Snoeck,
• María E. Gómez and
• Manuel R. Ibarra

Beilstein J. Nanotechnol. 2020, 11, 651–661, doi:10.3762/bjnano.11.51

• substrates, while the position of Qz is quite different from that of each substrate, being almost superimposed for LSMO grown on LSAT (see Figure 1b). This behavior corroborates the expected fully strained epitaxial growth (cube-on-cube) of the LSMO film where its in-plane lattice parameter is adapted to

• that of the substrate, and its out-of-plane lattice parameter is deformed accordingly [34][35]. The LSMO reflection for the sample grown on LAO substrate, Figure 1a, exhibits a low-intensity broad spot, which is influenced by the twinned nature of the rhombohedral LAO substrate, evidenced by the

• splitting of the LAO main reflection into three spots. For the BTO layers, its Qx position is the same, within the experimental error, for all samples, and it does not coincide with the LSMO and substrate reflections, indicating that the in-plane lattice parameter of the BTO is not adapted to the substrate

Influence of the epitaxial composition on N-face GaN KOH etch kinetics determined by ICP-OES

• Markus Tautz,
• Maren T. Kuchenbrod,
• Joachim Hertkorn,
• Robert Weinberger,
• Martin Welzel,
• Arno Pfitzner and
• David Díaz Díaz

Beilstein J. Nanotechnol. 2020, 11, 41–50, doi:10.3762/bjnano.11.4

• the optimization of epitaxial growth to achieve the lowest possible dislocation density. Most often, GaN is produced in the LED industry by metal organic chemical vapour deposition (MOCVD) in a heteroepitaxial process on sapphire substrates [4]. The lattice parameter mismatch of ca. 13.8% between GaN

Long-term entrapment and temperature-controlled-release of SF₆ gas in metal–organic frameworks (MOFs)

• Hana Bunzen,
• Andreas Kalytta-Mewes,
• Leo van Wüllen and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2019, 10, 1851–1859, doi:10.3762/bjnano.10.180

• group P4mm (no. 99) for those cells corresponding to “min”, “TS”, and “centre”; cubic space group Pm−3m for the “start/end” configuration). Again, the experimental lattice parameter a = 21.697 Å was retained during all calculations. The two different correction methods were included in all DFT

The impact of crystal size and temperature on the adsorption-induced flexibility of the Zr-based metal–organic framework DUT-98

• Simon Krause,
• Volodymyr Bon,
• Hongchu Du,
• Rafal E. Dunin-Borkowski,
• Ulrich Stoeck,
• Irena Senkovska and
• Stefan Kaskel

Beilstein J. Nanotechnol. 2019, 10, 1737–1744, doi:10.3762/bjnano.10.169

• cluster of 1.5 nm, which is in good agreement with the lattice parameter and the inter-cluster distance of the DUT-98op crystal structure (Supporting Information File 1, Figure S8). The regular arrangement of the clusters indicates a high symmetry that matches the tetragonal symmetry in DUT-98op. In