Transparent CuInS2 PMMA Nanocomposites Luminescent in the Visible and NIR Region
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Krzysztof Guguła
Nanocomposites combining functional nanoparticles and transparent polymers allow for stabilization of filler properties over long periods of time while retaining transparency of the polymer matrix. Here we employ CuInS2/ZnS quantum dots (QDs), ternary visible- and NIR-emitting semiconductors as wavelength-tunable luminescent fillers. Luminescence in the near infrared (NIR) is of particular interest in medicine which allows deep penetration into human tissue enabling in vivo diagnostics and treatment, while visible emitters may serve as color converters in displays or lighting. To stabilize the optical properties of QDs and prevent agglomeration, polymethyl metacrylate (PMMA) was chosen as a matrix. These novel polymer nanocomposites (PNCs) show good optical properties and stability under ambient conditions, and can be easily deposited over large areas. High-quality QDs and hydrophobic functionalization with long-chain hydrocarbons are a prerequisite for embedding into a PMMA matrix. Transparent PNC films without visible scattering losses were obtained for 1 wt-% QD loading with respect to the polymer. Partial transparency is retained up to 10 wt-% QD loading and vanishes rapidly at higher loading. Luminescence properties increase up to 5 wt-% and then decrease rapidly due to QD agglomeration and reabsorption between adjacent particles. Potential applications include converter materials for medical applications, laser layers, displays and white LEDs.
Graphical Abstract
Transparent CuInS2 PMMA Nanocomposites Luminescent in the Visible and NIR Region
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- ERRATUM
Articles in the same Issue
- Materials Chemistry and Light
- Fluorescence-active Waveguides by the Sol-Gel Method. Theory and Application
- Optical Spectroscopy and Crystal Field Studies of the Mn4+ Ion (3d3) in the Double Perovskite NaLaMgTeO6
- Na2Y3Cl3[TeO3]4: Synthesis, Crystal Structure and Spectroscopic Properties of the Bulk Material and its Luminescent Eu3+-doped Samples
- Preparation and Characterization of Transparent, Photoluminescent MgAl2O4:Eu2+ Ceramics
- Energy Recovery from Lu2O3:Tb,Hf Ceramic Storage Phosphors
- Understanding Persistent Luminescence: Rare-Earth- and Eu2+-doped Sr2MgSi2O7
- Synthesis and Optical Properties of Li3Ba2La3(MoO4)8:Sm3+ Powders for pcLEDs
- Development of Nd3+-doped Monoclinic Dimolybdates La2Mo2O9 as Optical Materials
- Synchrotron Radiation Study of Interconfigurational 5d-4f Luminescence of Pr3+ in KLuP2O7
- Efficient Red Emission from Europium Chelate-Silicone Host-Guest Hybrids
- Transparent CuInS2 PMMA Nanocomposites Luminescent in the Visible and NIR Region
- Functionalization of Sol-Gel Zirconia Composites with Europium Complexes
- Red (Eu3+), Green (Tb3+) and Ultraviolet (Gd3+) Emitting Nitrilotriacetate Complexes Prepared by One-step Synthesis
- Photoluminescent Tetrazolate-based Eu(III) Complexes: An Outstanding Impact of Aromatic Phosphine Oxide Co-ligands on the Photoluminescence Quantum Yields
- Tb2(bpdc)3 and Eu2(bpdc)3 Nanoparticles (bpdc: 2,2ʹ-Bipyridine-4,4ʹ- dicarboxylate) and Their Luminescence
- 1,3-Thiazole as Suitable Antenna Ligand for Lanthanide Photoluminescence in [LnCl3(thz)4]·0.5thz, Ln = Sm, Eu, Gd, Tb, Dy
- Bidirectional Photoinduced Energy Transfer in Nanoassemblies of Quantum Dots and Luminescent Metal Complexes
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