Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

• in different matrices. The choice of the sensor material is crucial to achieving efficient sensing of the target analyte for luminescence-based sensors. Although luminescent sensors have been made using a variety of organic fluorophores and phosphors, the drawbacks of conventional organic dyes for

• developing luminescent sensors include their toxicity, ease of aggregation, photobleachability, and low capacity for adsorption of the target analyte. Numerous luminescent materials, including semiconductors, metal complexes, metal-based fluorescent nanoparticles, MOFs, and inorganic phosphors doped with

Plasmon-enhanced photoluminescence from TiO₂ and TeO₂ thin films doped by Eu³⁺ for optoelectronic applications

• Marcin Łapiński,
• Jakub Czubek,
• Katarzyna Drozdowska,
• Anna Synak,
• Wojciech Sadowski and
• Barbara Kościelska

Beilstein J. Nanotechnol. 2021, 12, 1271–1278, doi:10.3762/bjnano.12.94

• candidates as phosphors in white LEDs. Keywords: gold nanostructures; luminescence; plasmon resonance; Introduction The rapid development of optoelectronics leads to challenges in the search for new luminescence materials. Especially the fabrication of white LEDs requires more efficient phosphors

• intensity and the influence of the plasmonic platform for both kinds of phosphors is comparable. Additionally, we decided to change the dielectric layer from Al2O3 to TiO2. It enabled the production of structures in a one-step process during the deposition of multilayers by magnetron sputtering. On the

Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

• Keshav Nagpal,
• Erwan Rauwel,
• Frédérique Ducroquet and
• Protima Rauwel

Beilstein J. Nanotechnol. 2021, 12, 1078–1092, doi:10.3762/bjnano.12.80

• CQD-based devices with configuration ITO/PEDOT:PSS (40 nm)/CQD (20 nm)/TPBI (40 nm)/LiF/Al [95]. These results clearly suggest that CQD are potential phosphors in the fabrication of white LED [96][97][98][99][100]. Prasad et al. have incorporated graphene nanosheets in MEH-PPV in order to evaluate the

Optimization and performance of nitrogen-doped carbon dots as a color conversion layer for white-LED applications

• Tugrul Guner,
• Hurriyet Yuce,
• Didem Tascioglu,
• Eren Simsek,
• Umut Savaci,
• Aziz Genc,
• Servet Turan and
• Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 2004–2013, doi:10.3762/bjnano.10.197

• to inorganic phosphors that are commonly employed in white-LED configurations. Keywords: color conversion layer; electrospinning; nitrogen-doped carbon dots; PVP; solid-state lighting; white LED; white-light generation; Introduction Light-emitting carbon dots (CDots) are a new class of

• solid-state lighting, provides a promising strategy to reduce electricity consumption, and WLEDs are expected to replace traditional lighting products in the future [24][25][26][27]. A WLED mainly consists of a blue or UV LED chip and phosphors as color conversion layers [28][29][30][31][32]. A typical

• configuration is the combination of a color conversion layer composed of yellow phosphors (e.g., cerium-doped yttrium aluminum garnet (YAG:Ce3+)) with a blue LED chip [33][34][35][36][37]. However, this configuration exhibits a low color rendering index (CRI) due to its red deficiency. Therefore, red phosphors

Luminescence of Tb₃Al₅O₁₂ phosphors co-doped with Ce³⁺/Gd³⁺ for white light-emitting diodes

• Yu-Guo Yang,
• Lei Wei,
• Jian-Hua Xu,
• Hua-Jian Yu,
• Yan-Yan Hu,
• Hua-Di Zhang,
• Xu-Ping Wang,
• Bing Liu,
• Cong Zhang and
• Qing-Gang Li

Beilstein J. Nanotechnol. 2019, 10, 1237–1242, doi:10.3762/bjnano.10.123

• , Jinan 250014, China 10.3762/bjnano.10.123 Abstract Tb2.96−xCe0.04GdxAl5O12 phosphors were synthesized through solid-state reactions. The influence of Gd3+ on the luminescence was investigated. Under the excitation at 460 nm, Tb2.96Ce0.04Al5O12 shows the characteristic emission band of Ce3+ with a peak

• + causes lattice deformation and generates numerous structural and chemical defects. By comparing the light parameters of white light-emitting diodes (WLEDs) containing Y2.96Ce0.04Al5O12, Tb2.96Ce0.04Al5O12 and Tb2.81Ce0.04Gd0.15Al5O12 phosphors, we can find that the WLED containing the

• Tb2.81Ce0.04Gd0.15Al5O12 phosphor generates warmer light than the WLEDs containing Y2.96Ce0.04Al5O12 and Tb2.96Ce0.04Al5O12 phosphors. Moreover, the WLEDs fabricated by integrating a blue LED chip and Ce3+/Gd3+-co-doped Tb3Al5O12 phosphors show outstanding colour stability when driven under different currents. Keywords

Green fabrication of lanthanide-doped hydroxide-based phosphors: Y(OH)₃:Eu³⁺ nanoparticles for white light generation

• Tugrul Guner,
• Anilcan Kus,
• Mehmet Ozcan,
• Aziz Genc,
• Hasan Sahin and
• Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 1200–1210, doi:10.3762/bjnano.10.119

• , Faculty of Engineering, Bartin University, 74100 Bartin, Turkey 10.3762/bjnano.10.119 Abstract Phosphors can serve as color conversion layers to generate white light with varying optical features, including color rendering index (CRI), high correlated color temperature (CCT), and luminous efficacy

• . However, they are typically produced under harsh synthesis conditions such as high temperature, high pressure, and/or by employing a large amount of solvent. In this work, a facile, water-based, rapid method has been proposed to fabricate lanthanide-doped hydroxide-based phosphors. In this sense, sub

• optoelectronic properties. As an application, these fabricated red phosphors were integrated into a PDMS/YAG:Ce3+ composite and used to generate white light. The resulting white light showed a remarkable improvement (≈24%) in terms of luminous efficiency, a slight reduction of CCT (from 3900 to 3600 K), and an

Towards rare-earth-free white light-emitting diode devices based on the combination of dicyanomethylene and pyranine as organic dyes supported on zinc single-layered hydroxide

• Jeff L. Nyalosaso,
• Rachod Boonsin,
• Pierre Vialat,
• Damien Boyer,
• Geneviève Chadeyron,
• Rachid Mahiou and
• Fabrice Leroux

Beilstein J. Nanotechnol. 2019, 10, 760–770, doi:10.3762/bjnano.10.75

• addition of expensive and moisture-sensitive red phosphors (fluoride or nitride) [1]. These phosphors involve rare-earth-doped inorganic phosphors that are extensively used in high-technology devices, LED lighting, mobile phones, flat panel display and wind turbines. While a series of breakthroughs and

• advances have been made for efficient blue LEDs, currently the research on white LEDs is mainly focused on the development of rare-earth-free phosphors [2][3]. The worldwide demand for rare-earth elements (REEs), especially within the sectors of renewable energy, military, and consumer electronics, is

• white LED lamp is strongly linked to the price of REEs as the latter represents 12% of the total. The explosion of demand combined with a monopolistic supply source represents a real risk for the deployment of LED technology in the years to come. Developing rare-earth-free phosphors is therefore a major

Synthesis and functionalization of NaGdF₄:Yb,Er@NaGdF₄ core–shell nanoparticles for possible application as multimodal contrast agents

• Dovile Baziulyte-Paulaviciene,
• Vitalijus Karabanovas,
• Marius Stasys,
• Greta Jarockyte,
• Vilius Poderys,
• Simas Sakirzanovas and
• Ricardas Rotomskis

Beilstein J. Nanotechnol. 2017, 8, 1815–1824, doi:10.3762/bjnano.8.183

• stability, high resistance to photobleaching, and long emission lifetime [2][3]. As a unique class of luminescent phosphors, UCNPs show great promise in a broad range of applications ranging from bioimaging, biosensors, drug delivery, to photodynamic therapy [4][5][6][7][8]. Through combination with

Calcium fluoride based multifunctional nanoparticles for multimodal imaging

• Marion Straßer,
• Joachim H. X. Schrauth,
• Sofia Dembski,
• Daniel Haddad,
• Bernd Ahrens,
• Stefan Schweizer,
• Bastian Christ,
• Alevtina Cubukova,
• Marco Metzger,
• Heike Walles,
• Peter M. Jakob and
• Gerhard Sextl

Beilstein J. Nanotechnol. 2017, 8, 1484–1493, doi:10.3762/bjnano.8.148

• , Germany Fraunhofer Application Center for Inorganic Phosphors, Branch Lab of Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Luebecker Ring 2, 59494 Soest, Germany 10.3762/bjnano.8.148 Abstract New multifunctional nanoparticles (NPs) that can be used as contrast agents (CA) in

Facile fabrication of luminescent organic dots by thermolysis of citric acid in urea melt, and their use for cell staining and polyelectrolyte microcapsule labelling

• Nadezhda M. Zholobak,
• Anton L. Popov,
• Alexander B. Shcherbakov,
• Nelly R. Popova,
• Mykhailo M. Guzyk,
• Valeriy P. Antonovich,
• Alla V. Yegorova,
• Yuliya V. Scrypynets,
• Inna I. Leonenko,
• Alexander Ye. Baranchikov and
• Vladimir K. Ivanov

Beilstein J. Nanotechnol. 2016, 7, 1905–1917, doi:10.3762/bjnano.7.182

• luminescent organic clusters (LOC). A semiconductor quantum dot is a single collective electronic oscillator; in contrast, an organic dot is probably a clustered pack of isolated oscillators (phosphors) [19]. According to literature data, depending on the reaction conditions, (temperature, duration of the

High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis

• Bilel Chouchene,
• Tahar Ben Chaabane,
• Lavinia Balan,
• Emilien Girot,
• Kevin Mozet,
• Ghouti Medjahdi and
• Raphaël Schneider

Beilstein J. Nanotechnol. 2016, 7, 1338–1349, doi:10.3762/bjnano.7.125

• efficiency by energy transfer processes and this topic is becoming an exciting area of research for developing electronic and optical applications like sensors, light-emitting phosphors or flat panel displays [14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Due to the defects induced in the ZnO

Blue and white light emission from zinc oxide nanoforests

• Nafisa Noor,
• Luca Lucera,
• Thomas Capuano,
• Venkata Manthina,
• Alexander G. Agrios,
• Helena Silva and
• Ali Gokirmak

Beilstein J. Nanotechnol. 2015, 6, 2463–2469, doi:10.3762/bjnano.6.255

• ] and as phosphors [7]. ZnO typically grows as an n-type semiconductor due to oxygen deficiencies and has been used as the n-type material in heterojunctions [8], but there have also been significant efforts to produce high-quality p-type ZnO to form homojunction light emitting diodes (LED) that can

A nano-graphite cold cathode for an energy-efficient cathodoluminescent light source

• Alexander N. Obraztsov,
• Victor I. Kleshch and
• Elena A. Smolnikova

Beilstein J. Nanotechnol. 2013, 4, 493–500, doi:10.3762/bjnano.4.58

• sources is necessary to provide better energy efficiency, spectral characteristics, and other properties desired by the consumer. The process of cathodoluminescence (CL), which is potentially able to provide a conversion of up to 35% [3] (or more for nanostructured phosphors [4]) of the energy of the

• ) covered by different phosphor materials to provide red, green and blue colors of radiation. The spectral characteristics of the emitted light are determined by the composition of the CL phosphor materials. For the prototype of the CL lamp presented in Figure 6 the following phosphors were used: ZnS

• materials and special designs, allowing more efficient heat dissipation, may reduce the temperature and increase the energy efficiency of the lamps with NGF cold cathodes up to the values predicted from a general consideration of the CL process [3][4][5]. Standard RGB phosphors used in the present study

Near-field effects and energy transfer in hybrid metal-oxide nanostructures

• Ulrich Herr,
• Balati Kuerbanjiang,
• Cahit Benel,
• Giorgos Papageorgiou,
• Manuel Goncalves,
• Johannes Boneberg,
• Paul Leiderer,
• Paul Ziemann,
• Peter Marek and
• Horst Hahn

Beilstein J. Nanotechnol. 2013, 4, 306–317, doi:10.3762/bjnano.4.34

• LEDs (light-emitting diodes). They are characterized by efficient conversion of short-wavelength photons into longer wavelength emission; the large Stokes shift allows one to clearly distinguish between excitation and emission. In the form of nanoparticles, these materials (also termed “nano-phosphors