Recent progress in enhancing built-in electric fields of perovskite solar cells via junction engineering

• Tong Xiao and
• Ke Xu

Beilstein J. Nanotechnol. 2026, 17, 602–621, doi:10.3762/bjnano.17.42

• introducing a “reassembly process” (RP) strategy. Using a pyridine/isopropanol mixed solvent, insulating long-chain ligands were replaced with formamidinium iodide short-chain ions, enabling close-packed quantum dot assembly and vertical growth orientation. Simultaneously, layered spin-coating of nanocrystals

• bidirectional interface optimization strategy: Seed layers of BAMAPbI (n = 3, 4, 5) were spin-coated onto the hole transport layer (MeO-2PACz) to form a bottom 2D induction layer, promoting the epitaxial crystallization of the overlying 3D perovskite and improving interfacial contact, thereby enhancing hole

Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene

• Gautier Creutzer,
• Quentin Fernez,
• Nataliya Kalashnyk,
• Zohreh Safarzadeh,
• Lydia Sosa Vargas,
• Céline Fiorini-Debuisschert,
• Nicolas Fabre and
• Fabrice Charra

Beilstein J. Nanotechnol. 2026, 17, 576–585, doi:10.3762/bjnano.17.39

• fundamental research on organic semiconductors. The flexibility offered by the choice of the coordinated central metal cation permits to vary their electronic, photonic, and spin-related properties. It also influences their stacking geometry, in particular as a result of the change in relative stability of

Electrochemical determination of ciprofloxacin using a MIL-101/reduced graphene oxide-modified electrode

• Nguyen Quang Man,
• Nguyen Ngoc Nghia,
• Nguyen Vinh Phu,
• Vo Thi Khanh Ly,
• Le Lam Son,
• Pham Khac Lieu,
• Le Thi Hong Phong,
• Nguyen Dinh Luyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2026, 17, 541–554, doi:10.3762/bjnano.17.35

• , suggesting that the synthesized composite is predominantly composed of the expected elements within the detection limit of XPS. The high-resolution Cr 2p spectrum (Figure 3b) shows two prominent peaks at approximately 577.9 and 589.0 eV, representing the Cr 2p3/2 and Cr 2p1/2 spin–orbit components

Fractional shot noise of an SU(N) Kondo system

• Damian Krychowski and
• Stanisław Lipiński

Beilstein J. Nanotechnol. 2026, 17, 515–540, doi:10.3762/bjnano.17.34

• molecular structures [12][13]. In this phenomenon, an entangled state is formed as a result of screening of the localized spin by conduction electrons [14][15][16]. The growing interest in the Kondo effect in nanoscopic systems is motivated primarily by cognitive purposes as this phenomenon is a basis for

• the generation of spin-polarized currents [19][20][21][22][23]. A continuing present goal is to test fundamental correlations between different degrees of freedom and to examine their role in quantum transport. The principal aim is to understand how dot or multidot structures with internal spin

• , orbital, or charge isospin may lead to variants of the high-symmetry Kondo effect involving different degrees of freedom [24][25][26][27][28][29][30][31][32]. Spin and orbital degeneracies can occur simultaneously, leading to a Kondo ground state of SU(4) symmetry with orbital–spin entanglement. The

Defects and defect-mediated engineering of two-dimensional materials: challenges and open questions

• Arkady V. Krasheninnikov,
• Matthias Batzill,
• Anouar-Akacha Delenda,
• Marija Drndić,
• Chris Ewels,
• Katharina J. Franke,
• Mahdi Ghorbani-Asl,
• Alexander Holleitner,
• Ado Jorio,
• Ute Kaiser,
• Daria Kieczka,
• Hannu-Pekka Komsa,
• Jani Kotakoski,
• Manuel Längle,
• David Lamprecht,
• Yun Liu,
• Steven G. Louie,
• Janina Maultzsch,
• Thomas Michely,
• Katherine Milton,
• Anna Niggas,
• Hanako Okuno,
• Joshua A. Robinson,
• Marika Schleberger,
• Bruno Schuler,
• Alexander Shluger,
• Kazu Suenaga,
• Kristian S. Thygesen,
• Richard A. Wilhelm,
• E. Harriet Åhlgren and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2026, 17, 454–488, doi:10.3762/bjnano.17.31

• vacancies exhibit reduced effective charges and are more chemically active. This enables barrier-less reactions of O2, explaining the rapid oxidation at larger vacancy clusters. Additional uncertainty in modelling oxidation kinetics arises from the possibility of changes in the spin state of the O2 molecule

• them to be deep acceptors. In addition, chalcogen vacancies in TMDs are readily passivated by oxygen in air [51][140]. Can magnetic moments of individual defects be measured? Solid-state spin defects have emerged as essential building blocks for quantum communication and sensing applications [141]. In

• 2D materials, numerous spin-active defects have been predicted and an increasing number have been experimentally confirmed [119][142][143] using optical spectroscopy, STM, and other techniques. STM is an ideal tool to measure magnetic moments of atomic-scale defects. Inelastic excitations of the spin

Ferroelectric nanodot reservoir for neuromorphic computing

• Anna Razumnaya,
• Yuri Tikhonov,
• Dmitrii Naidenko,
• Léo Boron,
• Valerii Vinokur and
• Igor Lukyanchuk

Beilstein J. Nanotechnol. 2026, 17, 352–364, doi:10.3762/bjnano.17.24

• node within a predefined circuit. However, such approaches often neglect the rich collective dynamics emerging from ensembles of interacting nonlinear elements, an aspect especially compelling when analyzed through the lens of statistical physics models such as the Ising spin system with disorder

• neuromorphic purposes using abstract or spin-based physical systems [43][44], the ferroelectric platform described here uniquely combines analog configurability, scalability, and low-energy operation due to the intrinsic dielectric polarization physics. In contrast to spintronic or CMOS-based implementations

Fast vortex dynamics and relaxation times in NbRe-based heterostructures

• Francesco De Chiara,
• Zahra Makhdoumi Kakhaki,
• Francesco Avitabile,
• Francesco Colangelo,
• Abhishek Kumar,
• Carmine Attanasio and
• Carla Cirillo

Beilstein J. Nanotechnol. 2026, 17, 292–302, doi:10.3762/bjnano.17.20

• Electrical Engineering, Technische Universität Braunschweig, D-38106 Braunschweig, Germany CNR-SPIN, c/o Università degli Studi di Salerno, I-84084 Fisciano (Sa), Italy Centro NANO_MATES, c/o Università degli Studi di Salerno, I-84084 Fisciano, Salerno, Italy 10.3762/bjnano.17.20 Abstract An in-depth

• relaxation channel, promoting faster quasiparticle recombination. However, this effect competes with additional spin-related relaxation channels due to the splitting of the electronic band, which can lead to a slower recovery of the superconducting condensate. Therefore, in general, the net effect of a

Structure-dependent thermochromism of PAZO thin films: theory and experiment

• Georgi Mateev,
• Dean Dimov,
• Nataliya Berberova-Buhova,
• Nikoleta Kircheva,
• Todor Dudev,
• Ludmila Nikolova,
• Elena Stoykova,
• Keehoon Hong,
• Dimana Nazarova,
• Silvia Angelova and
• Lian Nedelchev

Beilstein J. Nanotechnol. 2026, 17, 186–199, doi:10.3762/bjnano.17.12

• based on PAZO polymer. Preparation of thin-film samples All thin films used in this work were fabricated using spin-coating technique. Methanol was used as solvent for all samples, and a magnetic stirrer ensured complete dissolution. The solution was then poured onto the substrate (quartz or glass) and

Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review

• Giuseppe Cesare Lama,
• Marino Lavorgna,
• Letizia Verdolotti,
• Federica Recupido,
• Giovanna Giuliana Buonocore and
• Bharat Bhushan

Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6

Microscopic study of the intermediate mixed state in intertype superconductors

• Vyacheslav D. Neverov,
• Alexander V. Kalashnikov,
• Andrey V. Krasavin and
• Alexei Vagov

Beilstein J. Nanotechnol. 2026, 17, 57–62, doi:10.3762/bjnano.17.5

• method The vortex configurations are analyzed within a microscopic lattice model of a superconductor described by the attractive Hubbard Hamiltonian: where () are the annihilation (creation) operator for an electron with spin σ at site i, is the electron number operator, tij = −t is the nearest

Competitive helical bands and highly efficient diode effect in F/S/TI/S/F hybrid structures

• Tairzhan Karabassov,
• Irina V. Bobkova,
• Pavel M. Marychev,
• Vasiliy S. Stolyarov,
• Vyacheslav M. Silkin and
• Andrey S. Vasenko

Beilstein J. Nanotechnol. 2026, 17, 15–23, doi:10.3762/bjnano.17.2

• employed as a way to detect the spin–orbital coupling (SOC) type of the material [72]. Typically, such devices require three ingredients for achieving the nonreciprocity of the critical current, including lack of inversion and time-reversal symmetries and the presence of the superconducting order parameter

• based on topological insulators (TIs) are interesting since they offer strongest SOC rendering linear spin-polarized dispersion for the surface states [73]. The diode effect in TI-based structures has been reported in Josephson junctions, as well as in hybrid structures. In practice, when producing

• superconducting regions with a proximity-induced in-plane exchange field on top of the TI. The Fermi contour of the TI surface states is usually represented by the Dirac spectrum, that is, a single helical band, which is characterized by the strongest spin-momentum locking effect. Here, we consider the F/S/TI/S/F

Improving magnetic properties of Mn- and Zn-doped core–shell iron oxide nanoparticles by tuning their size

• Dounia Louaguef,
• Ghouti Medjahdi,
• Sébastien Diliberto,
• Klaus M. Seemann,
• Thomas Gries,
• Joelle Bizeau,
• Damien Mertz,
• Eric Gaffet and
• Halima Alem

Beilstein J. Nanotechnol. 2025, 16, 2285–2295, doi:10.3762/bjnano.16.157

• magnetic performance due to their reduced surface spin disorder [7]. Polyhedral NPs exhibit higher magnetic saturation, less spin canting, and higher SAR values than spherical NPs. For instance, Kasparis et al. demonstrated that polyhedral Zn0.4Fe2.6O4 NPs exhibited SAR values more than double those of

• ± 1.7, and 45.0 ± 1.2 nm exhibited Ms values of 0.012, 0.031, 0.12, and 7 A·m2·kg−1, respectively (Table 3). Similar trends have been reported in the literature, where larger particle sizes lead to higher Ms values due to the reduction of surface spin canting and the improved alignment of magnetic

Geometry-controlled engineering of the low-temperature proximity effect in normal metal–superconductor junctions

• Munisa A. Tomayeva,
• Vyacheslav D. Neverov,
• Andrey V. Krasavin,
• Alexei Vagov and
• Mihail D. Croitoru

Beilstein J. Nanotechnol. 2025, 16, 2265–2273, doi:10.3762/bjnano.16.155

• following lattice Hamiltonian [44]: with where () represent electron creation (annihilation) operators for spin σ at site i on the lattice. The tunneling amplitude tij is non-zero only between nearest neighbors (tij = −t), g > 0 is the superconducting pairing constant on the superconducting side of the

• performance in superconducting quantum circuits, Josephson junctions, or topological superconducting platforms, where the strength and range of the induced pairing correlations are critical. Future work could extend our analysis to incorporate the effects of disorder, finite temperature, spin–orbit coupling

Chiral plasmonic nanostructures fabricated with circularly polarized light

• Tian Qiao and
• Ming Lee Tang

Beilstein J. Nanotechnol. 2025, 16, 2245–2264, doi:10.3762/bjnano.16.154

• enantioselectivity induced by cPNSs has primarily been attributed to their geometrical chirality, which structurally favors interactions with chiral molecules [21][22]. However, chiral-induced spin selectivity through cPNSs can potentially promote enantioselective catalytic reactions [23]. Furthermore, the chiral

Hartree–Fock interaction in superconducting condensate fractals

• Edward G. Nikonov,
• Yajiang Chen,
• Mauro M. Doria and
• Arkady A. Shanenko

Beilstein J. Nanotechnol. 2025, 16, 2177–2182, doi:10.3762/bjnano.16.150

• creation operators of an electron with the spin projection σ = (↑,↓) at sites i = 1,…,N, t⟨ij⟩ is the hopping amplitude between the nearest neighboring sites, , and g > 0 is the on-site attractive electron–electron interaction. Within the mean-field approximation, the Hamiltonian in Equation 1 is reduced

• [4] to the effective BCS–Bogoliubov Hamiltonian in the form (for the s-wave pairing): where with δij the Kronecker delta, and Δ(i) and UHF(i) the superconducting order parameter and the HF interaction potential, respectively. The latter obey the self-consistency relations here, we exclude spin

Stereodiscrimination of guests in chiral organosilica aerogels studied by ESR spectroscopy

• Sebastian Polarz,
• Yasar Krysiak,
• Martin Wessig and
• Florian Kuhlmann

Beilstein J. Nanotechnol. 2025, 16, 2034–2054, doi:10.3762/bjnano.16.140

• necessary to reach separation is an important point. We have employed the two enantiomers of a chiral, nitroxide-based spin probe as guests in organo-modified macroporous host materials and applied ESR spectroscopy as a tool to investigate their rotational mobility. Using a well-established and commercially

• enantiomers (+) and (−) experience a different chemical environment is key. Otherwise, there might be a dynamic equilibrium between surface-adsorbed and mobile spin probes without stereodifferentiation. With this knowledge, it was possible to reach higher selectivity values than for the commercial material. A

• access the sub-10 nm domain and to obtain information about the dynamics of guests confined to the porous system on short timescales below milliseconds. Here, electron spin resonance (ESR) has some advantages. Because of the temporal dimension of these rotational dynamics at the microseconds timescale

Energy spectrum and quantum phase transition of the coupled single spin and an infinitely coordinated Ising chain

• Seidali Seidov,
• Natalia Pugach and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1668–1676, doi:10.3762/bjnano.16.117

• .16.117 Abstract In this work we consider a spin model composed of a single spin and connected to an infinitely coordinated Ising chain. Theoretical models of this type arise from various fields of theoretical physics, such as theory of open systems, quantum control, and quantum computations. In the

• we obtain the spectrum of the whole system and study the properties of the ground-state quantum phase transition. Keywords: Ising chain; Lipkin–Meshkov–Glick model; quantum phase transitions; Introduction In the present manuscript, we consider a single spin connected to an infinitely coordinated

• Ising chain. From a purely theoretical point of view, this model arises when studying the physics of open systems [1][2]. In this case, the chain is modelling the external environment to which the single spin is connected. In such models, it is convenient to study not only Markovian dynamics of the

Photocatalytic degradation of ofloxacin in water assisted by TiO₂ nanowires on carbon cloth: contributions of H₂O₂ addition and substrate absorbability

• Iram Hussain,
• Lisha Zhang,
• Zhizhen Ye and
• Jin-Ming Wu

Beilstein J. Nanotechnol. 2025, 16, 1567–1579, doi:10.3762/bjnano.16.111

• of the carbon surface. The Ti 2p spectra (Figure 4d) show characteristic peaks for CC/HTNW, with Ti 2p3/2 and Ti 2p1/2 peaks appearing at 458 and 463 eV, respectively, while for CC/NW-450 °C, these peaks slightly shift to 459 and 464 eV, respectively. The spin–orbit splitting remains ≈5.4 eV

Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor–ferromagnetic structures

• Aleksey Fedotov,
• Olesya Severyukhina,
• Anastasia Salomatina and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1557–1566, doi:10.3762/bjnano.16.110

• ., Dolgoprudny, 141701, Russia 10.3762/bjnano.16.110 Abstract The paper presents a mathematical model for studying the magnetic behavior of atoms, which takes into account spin and interatomic interactions. Two problems were solved by means of mathematical modeling. At the first stage, the problem of modeling a

• thin films and the formation of Neel domain walls. Keywords: ferromagnetic properties; LAMMPS; mathematical modeling; MEAM; molecular dynamics; spin dynamics; Introduction Thin film structures [1][2] are increasingly employed each year in a wide range of applications, serving as functional [3][4

• Studying the Magnetic Behavior of Atoms To conduct computational experiments, we used a mathematical model describing the coordinated motion of atoms and the change of their spin vectors. The spin vector of an atom in this case was understood as the intrinsic magnetic moment associated with the momentum of

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications

• Akshana Parameswaran Sreekala,
• Pooja Raveendran Nair,
• Jithin Kundalam Kadavath,
• Bindu Krishnan,
• David Avellaneda Avellaneda,
• M. R. Anantharaman and
• Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104

• method for developing advanced functional materials. This section of the discussion focuses on the fabrication of thin films using laser-processed nanocolloids by various techniques such as electrophoretic deposition (EPD), spin-dip coating, spin coating, drop-casting, and spray deposition. The choice of

• fabrication using nanocolloids synthesized by LPL is given in Figure 9. 2.1 Spin coating The pioneering analysis of spin coating dates back over fifty years to Emslie et al., who first studied the spreading of a thin axisymmetric film of Newtonian fluid on a rotating substrate [100]. In 1989, the method was

• used to deposit photoresist films for microelectronic manufacturing, where understanding the interaction between liquid flow and mass transfer during the process became crucial as device sizes decreased. A one-dimensional model of spin coating was developed to describe film thinning due to both

Enhancing the photoelectrochemical performance of BiOI-derived BiVO₄ films by controlled-intensity current electrodeposition

• Huu Phuc Dang,
• Khanh Quang Nguyen,
• Nguyen Thi Mai Tho and
• Tran Le

Beilstein J. Nanotechnol. 2025, 16, 1289–1301, doi:10.3762/bjnano.16.94

• factors that influence the subsequent BiVO4 conversion and PEC performance. Then, a 0.2 M VO(acac)2 solution in ethanol was coated onto the BiOI film via spin coating with two different volumes of solution (0.4 µL and 0.6 µL). The BiOI film (1 cm × 1 cm) with the VO(acac)2 layer was annealed at 450 °C for

Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

• polyelectrolyte–surfactant complexes (Figure 10) [260]. The complex structures consist of polyaniline appended with amino groups and monododecyl phosphate. The intricate films were produced using a spin coating method. The films displayed distinct lamellar structures, resulting from the strong interactions

Time-resolved probing of laser-induced nanostructuring processes in liquids

• Maximilian Spellauge,
• David Redka,
• Mianzhen Mo,
• Changyong Song,
• Heinz Paul Huber and
• Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

• a photocathode-based ultrashort electron pulse generator into a lab-based electron microscope, dynamic imaging of single specimens via pump–probe electron microscopy became possible. For instance, a spin state transition in the metal–organic framework Fe(pyrazine)Pt(CN)4 NPs was induced by

• nanosecond laser pulses, resulting in a high- to low-spin transition accompanied by morphological deformations coupled with lattice dynamics. Femtosecond X-ray laser pulses from X-ray free-electron lasers (XFELs) have further revolutionized dynamic X-ray imaging. Coherent diffraction imaging (CDI) [68][69

Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS

• Olga V. Sedelnikova,
• Yuliya V. Fedoseeva,
• Dmitriy V. Gorodetskiy,
• Yuri N. Palyanov,
• Elena V. Shlyakhova,
• Eugene A. Maksimovskiy,
• Anna A. Makarova,
• Lyubov G. Bulusheva and
• Aleksandr V. Okotrub

Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67

• spectrum was fitted by three doublets, related to the spin–orbit splitting into Ni 3p3/2 and Ni 3p1/2 components, separated by 1.6 eV (Figure 3a). The most intense doublet with the Ni 3p3/2 component at 66.1 eV is attributed to metallic nickel [46]. The high-energy doublet with the Ni 3p3/2 component at

Insights into the electronic and atomic structures of cerium oxide-based ultrathin films and nanostructures using high-brilliance light sources

• Paola Luches and
• Federico Boscherini

Beilstein J. Nanotechnol. 2025, 16, 860–871, doi:10.3762/bjnano.16.65

• between spin–orbit split lines [24]. In contrast, Ce 3d spectra exhibit five partially overlapped spin–orbit split components originating from different final states, which complicate the analysis [40]. Synchrotron radiation-based photoemission has proven to be significantly more versatile than XPS/UPS