CdSe/ZnS quantum dots as a booster in the active layer of distributed ternary organic photovoltaics

• Gabriela Lewińska,
• Piotr Jeleń,
• Zofia Kucia,
• Maciej Sitarz,
• Łukasz Walczak,
• Bartłomiej Szafraniak,
• Jerzy Sanetra and
• Konstanty W. Marszalek

Beilstein J. Nanotechnol. 2024, 15, 144–156, doi:10.3762/bjnano.15.14

• spectra of a solid were studied as a thin film deposited on quartz, and measurements in solution were obtained in chloroform. The wavelength ranged from 250 to 1000 nm. A Woolam M-2000 ellipsometer was used for spectroscopic ellipsometry analysis. The measurement range was 350–1650 nm. The measurement was

• (point by point). The layer under consideration was first pure quantum dots and then a ternary system with PC71BM and P3HT. The refractive index (n) of the quantum dots thin film and the extinction coefficient (k) were estimated using the Lorentz model modified by Tauc. The complex dielectric function is

• observed, thus approaching the maximum of the sunlight spectrum (approximately 550 nm). The refractive index of the thin film for the ternary mixture enriched by QD480 increases slightly compared to the base mixture P3HT+PC71BM. For the other mixtures, there is a decrease in the magnitude of the maximum

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

• Douglas Dourado,
• Thayse Silva Medeiros,
• Éverton do Nascimento Alencar,
• Edijane Matos Sales and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

• nanoliposomes promoting increased antiparasitic activity. Recently, Bafghi and collaborators produced nanoliposomes for curc delivery as a new alternative for leishmaniasis treatment [89]. Briefly, the nanoliposomes were prepared by thin-film hydration, resulting in spherical vesicles with 176.5 nm of diameter

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

• Joshua Williams,
• Michael I. Faley,
• Joseph Vimal Vas,
• Peng-Han Lu and
• Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

• implemented back in 1978 to fabricate thin-film Josephson devices [29]. The principle behind stencil lithography is to deposit materials onto the substrate through the aperture of a hard mask. Rather than placing the mask directly on the substrate and then removing it, as in traditional resist-based

Fluorescent bioinspired albumin/polydopamine nanoparticles and their interactions with Escherichia coli cells

• Eloïse Equy,
• Jordana Hirtzel,
• Sophie Hellé,
• Béatrice Heurtault,
• Eric Mathieu,
• Morgane Rabineau,
• Vincent Ball and
• Lydie Ploux

Beilstein J. Nanotechnol. 2023, 14, 1208–1224, doi:10.3762/bjnano.14.100

• progressive inhibition of the deposition of a PDA film on the wall of the reaction beaker, which was mentioned above and observed above a certain amount of BSA (Figure 3a). This allowed us to assume that BSA molecules below a critical amount cannot surround all DA molecules (some DA molecules thus form a thin

• film of PDA on the beaker’s wall), whereas they stabilize PDA NPs above this amount. The suspension stability was maintained when BSA/PDA NPs were in suspension in H2O or 150 mM NaCl solution. However, the mean hydrodynamic diameter varied with the solvent, with an increase by up to 50% for a BSA/DA

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

• characterize the surface photovoltage dynamics are acquired on a photovoltaic organic bulk-heterojunction (BHJ) thin film. The time-constant values are shown to be fully consistent with the results of pump-probe KPFM. Last, the ability of DHe-KPFM to detect weak SPV signals is illustrated by investigating

• images (Figure 3a, and numeric zoom in Supporting Information File 1, Figure S6) indicate that the thin-film processing was performed as expected. They display a uniform contrast at the hundred-nanometre scale, indicating that a fine intermixing of donor and acceptor species has been obtained. On a

Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons

• Janina Kopyra and
• Hassan Abdoul-Carime

Beilstein J. Nanotechnol. 2023, 14, 980–987, doi:10.3762/bjnano.14.81

• . Metal bis(acetylacetonate) complexes are of interest for many thin film fabrication techniques (e.g., chemical vapor deposition [9], atomic layer epitaxy [10], or atomic layer etching [11]) and as precursors for carbon materials, such as carbon nanotubes and carbon onion particles [12], or metal oxide

N-Heterocyclic carbene-based gold etchants

• Robert B. Chevalier,
• Justin Pantano,
• Matthew K. Kiesewetter and
• Jason R. Dwyer

Beilstein J. Nanotechnol. 2023, 14, 865–871, doi:10.3762/bjnano.14.71

• ) iodide, and 1,3-diisopropyl-5-nitrobenzimidazole-2-ylidene. Contrary to expectation, solutions containing the first two species in tetrahydrofuran and dichloromethane caused visible loss of gold from thin-film-coated glass slides. The use of toluene solutions of all species resulted in no apparent

A wearable nanoscale heart sound sensor based on P(VDF-TrFE)/ZnO/GR and its application in cardiac disease detection

• Yi Luo,
• Jian Liu,
• Jiachang Zhang,
• Yu Xiao,
• Ying Wu and
• Zhidong Zhao

Beilstein J. Nanotechnol. 2023, 14, 819–833, doi:10.3762/bjnano.14.67

• flexible piezoelectric thin film heart sound sensor was developed, and a heart sound detection and classification system was built based on this sensor. Zinc oxide (ZnO) and graphene (GR) fillers were added to the P(VDF-TrFE) matrix, and P(VDF-TrFE)/ZnO/GR composite piezoelectric nanofilms were prepared

• of heart sound stethoscope. Results and Discussion Characterization of thin film samples In the study by Luo et al. [19], an investigation was carried out to explore the electrospinning of piezoelectric films using different composition ratios of P(VDF-TrFE), ZnO, and GR. The resulting films

• utilized to analyze the composition and β-phase content of the composite piezoelectric nanofilms, while scanning electron microscopy (SEM) was employed to observe the morphology of the thin film filaments. Figure 6 displays the XRD patterns of the three composite piezoelectric nanofilms. In the P(VDF-TrFE

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

• Celia Martín-Morales,
• Jorge Fernández-Méndez,
• Pilar Aranda and
• Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

• conformations. (A) Sepiolite–alginate beads, (B) sepiolite–chitosan thin film, and (C) sepiolite–chitosan foams without cells. (D, E) Silica-based nanocomposites. (D) G57-4-type silica gel without cells and (E) the same type of silica gel with entrapped cyanobacteria cells. FE-SEM images of silica gel

The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera: Culicidae)

• Manuela Rebora,
• Gianandrea Salerno,
• Silvana Piersanti,
• Alexander Kovalev and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 496–508, doi:10.3762/bjnano.14.41

• illumination/observation configuration; (2) light scattering, which might be subdivided in (a) Rayleigh scattering on nanostructures, (b) scattering on partially regular micro- and nanostructures, and (c) thin film interference scales; (3) selective absorption by various molecules present in the cuticle; and

• (and also the black) appearance and demonstrates the importance of multiple reflections for the appearance of the white scales (Figure 6c). Thin film interference In the microscopic areas on the scales with relatively constant cuticle thickness, the effect of interference in thin films can be observed

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

• Bogusław Budner,
• Wojciech Tokarz,
• Sławomir Dyjak,
• Andrzej Czerwiński,
• Bartosz Bartosewicz and
• Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

• ) number of electrons per O2 molecule formed during the ORR, (d) %H2O2 formed during the ORR. Curves (c) and (d) were calculated from the data in panels (a) and (b) using Equations 1 and 2, respectively, with η = 0.152 for 900 rpm. The thin film RRDE experiments were done in a four-electrode arrangement in

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

• Zoran M. Marković,
• Milica D. Budimir,
• Martin Danko,
• Dušan D. Milivojević,
• Pavel Kubat,
• Danica Z. Zmejkoski,
• Vladimir B. Pavlović,
• Marija M. Mojsin,
• Milena J. Stevanović and
• Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

• 2.2 mg/mL. These specimens were designated as CQDs/PU. For bioimaging studies, toluene was evaporated, and a thin film of CQDs was redissolved in water and filtered. The prepared QCD samples were characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), Fourier

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• substrate at higher temperatures in oxygen-deficient environment [3][4]. Another cost-effective nanofabrication method, thin film dewetting, driven by the reduction of the surface energy and the interface energy has also been profusely studied because it provides a straightforward and fast way to produce

• nanoparticles [5][6][7]. The research of thin film dewetting has been extended to bilayers and multilayers for the synthesis of multicomponent nanoparticles [8][9][10][11][12][13][14][15][16], like alloyed AuNi and AuAg nanoparticles produced by the solid-state dewetting of bilayers [17][18][19][20][21][22][23

• small pieces were ready for thin film deposition. Metallic bilayers of Au and Ni of three different thickness ratios and a total thickness of 20 nm were deposited onto the SiO2/Si substrate by electron beam evaporation (CS400ES, VON ARDENNE) at a working pressure of 1 × 10−6 mbar. The Au layer was

Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

• Adrien Chauvin,
• Walter Puglisi,
• Damien Thiry,
• Cristina Satriano,
• Rony Snyders and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

• complexity and the high cost of gold restrict its use in devices. Here, we report on a novel two-step approach that combines the deposition of a silver–aluminum thin film with dealloying to design and fabricate efficient SERS platforms. The magnetron sputtering technique was used for the deposition of the

• alloy thin film to be dealloyed. After dealloying, the resulting silver nanoporous structures revealed two degrees of porosity: macroporosity, associated to the initial alloy morphology, and nanoporosity, related to the dealloying step. The resulting nanoporous columnar structure was finely optimized by

• rhodamine B. Keywords: dealloying; magnetron sputtering; nanoporous thin film; nanostructuring; SERS; Introduction Pollutant residues are strictly regulated in most countries to ensure water and food safety. In this context, there is an increasing demand for pollutant analysis tools with practical and

Upper critical magnetic field in NbRe and NbReN micrometric strips

• Zahra Makhdoumi Kakhaki,
• Antonio Leo,
• Federico Chianese,
• Loredana Parlato,
• Giovanni Piero Pepe,
• Angela Nigro,
• Carla Cirillo and
• Carmine Attanasio

Beilstein J. Nanotechnol. 2023, 14, 45–51, doi:10.3762/bjnano.14.5

• the electrical resistivity [6]. This feature is related to the polycrystalline or amorphous nature of these materials when deposited in a thin-film form [4][7][8]. In addition to the applicative interest, the study of these materials is relevant from a fundamental point of view. NbxRe1−x (NbRe) for

Electrical and optical enhancement of ITO/Mo bilayer thin films via laser annealing

• Abdelbaki Hacini,
• Ahmad Hadi Ali,
• Nurul Nadia Adnan and
• Nafarizal Nayan

Beilstein J. Nanotechnol. 2022, 13, 1589–1595, doi:10.3762/bjnano.13.133

• annealing, a laser beam irradiates the surface layer of the thin film without causing damage. The temperature increases quickly during the process within a short period [24][27]. The laser beam must have a uniform intensity with asymmetrical distribution to obtain surfaces of good morphology with low

• plasma cleaner. In the IM structure, the thickness of ITO was 125 nm while the thickness of Mo was 10 nm. The thickness was controlled by two quartz crystal balances integrated within the chamber. After deposition, the bilayer thin film was treated using a Nd:YAG pulsed laser with a wavelength of 1064 nm

• were determined using a four-point probe system. Results and Discussion The crystalline structure of the ITO/Mo bilayer thin film after laser annealing was investigated using XRD. Figure 1 shows the structural evolution for the as-deposited and the samples annealed with different laser energies. Most

Single-step extraction of small-diameter single-walled carbon nanotubes in the presence of riboflavin

• Polina M. Kalachikova,
• Anastasia E. Goldt,
• Eldar M. Khabushev,
• Timofei V. Eremin,
• Timofei S. Zatsepin,
• Elena D. Obraztsova,
• Konstantin V. Larionov,
• Liubov Yu. Antipina,
• Pavel B. Sorokin and
• Albert G. Nasibulin

Beilstein J. Nanotechnol. 2022, 13, 1564–1571, doi:10.3762/bjnano.13.130

• properties [3][4][5]. Moreover, as-synthesized SWCNTs typically possess a wide range of diameters and chiralities, leading to an inhomogeneous distribution of optical and electronic properties [5]. Nevertheless, most SWCNT applications, including thin-film electronics, require individual constituent parts

Induced electric conductivity in organic polymers

• Konstantin Y. Arutyunov,
• Anatoli S. Gurski,
• Vladimir V. Artemov,
• Alexander L. Vasiliev,
• Azat R. Yusupov,
• Danfis D. Karamov and
• Alexei N. Lachinov

Beilstein J. Nanotechnol. 2022, 13, 1551–1557, doi:10.3762/bjnano.13.128

• mechanical stress is applied. In this work, the transport properties of thin-film layered lead–PDP–lead structures were experimentally studied in a wide temperature range. At sufficiently high temperatures, the current voltage characteristics are satisfactorily described in terms of the injection model of

• currents limited by the space charge. At temperatures below ≈8 K, a number of samples exhibit features that can be explained by the effect of induced superconductivity in a thin film of conducting polymer enclosed between two massive superconductors (lead). Keywords: conducting polymer; superconductivity

• of thin-film lead electrodes with thicknesses from 50 nm to 200 nm was carried out by thermal evaporation in vacuum. The critical temperature of bulk lead is Тс(Pb3D) = 7.2 K. However, in the form of a thin film, the critical temperature of a superconductor can differ significantly from the tabulated

Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells

• Roopakala Kottayi,
• Ilangovan Veerappan and
• Ramadasse Sittaramane

Beilstein J. Nanotechnol. 2022, 13, 1337–1344, doi:10.3762/bjnano.13.110

• [16]. Recently, Larsen et al. reported that, due to the appropriate bandgap (1.6–1.8 eV), AgGaSe2 is a wide-range light absorber in thin film solar cells [17]. Tianya Bai et al. [18] examined that ZnS-coated AgGaS2 nanocrystals (AgGaS2/ZnS core–shell nanocrystals) have a tunable bandgap and PL colors

Role of titanium and organic precursors in molecular layer deposition of “titanicone” hybrid materials

• Arbresha Muriqi and
• Michael Nolan

Beilstein J. Nanotechnol. 2022, 13, 1240–1255, doi:10.3762/bjnano.13.103

• growth could be achieved. Keywords: density functional theory (DFT) studies; double reactions; surface chemistry; titanicone; Introduction Molecular layer deposition (MLD), a thin film deposition technique, has attracted significant attention in recent years as a suitable approach for the deposition of

Roll-to-roll fabrication of superhydrophobic pads covered with nanofur for the efficient clean-up of oil spills

• Patrick Weiser,
• Robin Kietz,
• Marc Schneider,
• Matthias Worgull and
• Hendrik Hölscher

Beilstein J. Nanotechnol. 2022, 13, 1228–1239, doi:10.3762/bjnano.13.102

• /contaminated or by shredding and extruding a new support film. This sacrificial layer is essential to produce a thin film. It is necessary to find a material that sticks to the polymer the nanofur is to be made of, but can also easily be separated after the structuring step. For films thicker than 1 mm, the

Application of nanoarchitectonics in moist-electric generation

• Jia-Cheng Feng and
• Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

• , there are also some novel innovations in energy-harvesting structures, such as the construction of lateral gradients of nanomaterials, the construction of multilayer structures, and the direct use of ion distribution gradients in liquids. With a PVP thin film of 290 nm thickness as the dielectric layer

Effects of focused electron beam irradiation parameters on direct nanostructure formation on Ag surfaces

• Jānis Sniķeris,
• Vjačeslavs Gerbreders,
• Andrejs Bulanovs and
• Ēriks Sļedevskis

Beilstein J. Nanotechnol. 2022, 13, 1004–1010, doi:10.3762/bjnano.13.87

• to be removed from the vacuum chamber during the cleaning procedure since the N plasma cleaning procedure affected the Ag surface, most notably by forming a layer which produces thin film interference. The sample irradiation was repeated 15 min, 30 min, 1 h, and 2 h after the end of the cleaning

• , radiolysis by collisions with electrons seeming like the most obvious one. It should be noted that N plasma treatment in this case also affected the clean Ag surface, turning it into an interfering thin film. We believe that controlled etching with plasma has the potential to explore the structure of metal

Theoretical investigations of oxygen vacancy effects in nickel-doped zirconia from ab initio XANES spectroscopy at the oxygen K-edge

• Dick Hartmann Douma,
• Lodvert Tchibota Poaty,
• Alessio Lamperti,
• Stéphane Kenmoe,
• Abdulrafiu Tunde Raji,
• Alberto Debernardi and
• Bernard M’Passi-Mabiala

Beilstein J. Nanotechnol. 2022, 13, 975–985, doi:10.3762/bjnano.13.85

• structure. The fluorite structure is not stable under ambient conditions and, thus, zirconia is usually found in the monoclinic phase. The cubic distorted fluorite structure may however be stabilized by a doping or by deposition as a thin film (because the surface energy of the cubic structure is lower than

Bioselectivity of silk protein-based materials and their bio-inspired applications

• Hendrik Bargel,
• Vanessa T. Trossmann,
• Christoph Sommer and
• Thomas Scheibel

Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81

• obtained from fluorinated silica colloids, thin film deposition of silicone elastomers or nanoengineered superhydrophobic surfaces of Teflon®-coated aluminium [63][64][65]. Superhydrophobic surfaces have also been reported to be unfavorable for mammalian cell attachment and growth. This may be due to the