Simultaneously Enhancing Photoluminescence Quantum Efficiency and Optical Gain of Polyfluorene via Backbone Intercalation of 2,5‐Dimethyl‐1,4‐Phenylene
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000187
Abstract: Simultaneous enhancement of photoluminescence quantum efficiency (PLQE) and optical gain in semiconducting polymer films is desirable for optically‐ or electrically‐pumped organic solid‐state lasers. In this work, a simple self‐dilution effect is achieved by introducing a… read more here.
Keywords: photoluminescence quantum; quantum efficiency; gain; optical gain ... See more keywords
Pressure‐Induced Indirect‐Direct Bandgap Transition of CsPbBr3 Single Crystal and Its Effect on Photoluminescence Quantum Yield
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202201554
Abstract: Despite extensive study, the bandgap characteristics of lead halide perovskites are not well understood. Usually, these materials are considered as direct bandgap semiconductors, while their photoluminescence quantum yield (PLQY) is very low in the solid… read more here.
Keywords: direct bandgap; bandgap; quantum yield; pressure ... See more keywords
An Ultrafast and Room-Temperature Strategy for Kilogram-Scale Synthesis of Sub-5 nm Eu3+ -doped CaMO4 Nanocrystals with a Photoluminescence Quantum Yield Exceeding 85.
Sign Up to like & getrecommendations! Published in 2023 at "Small"
DOI: 10.1002/smll.202301680
Abstract: Rare earth-doped metal oxide nanocrystals have a high potential in display, lighting, and bio-imaging, owing to their excellent emission efficiency, superior chemical, and thermal stability. However, the photoluminescence quantum yields (PLQYs) of rare earth-doped metal… read more here.
Keywords: sub eu3; eu3; temperature; eu3 doped ... See more keywords
Giant enhancement of photoluminescence quantum yield in 2D perovskite thin microplates by graphene encapsulation
Sign Up to like & getrecommendations! Published in 2020 at "Nano Research"
DOI: 10.1007/s12274-020-2971-x
Abstract: The optoelectronic performances of the layered materials are strongly dependent on the thickness of the samples due to the surface effect. As the size of the samples decreases to few nanometers, the surface depletion field… read more here.
Keywords: perovskite thin; quantum yield; thin microplates; photoluminescence quantum ... See more keywords
Excitation Energy Dependence of the Photoluminescence Quantum Yield of Core/Shell CdSe/CdS Quantum Dots and Correlation with Circular Dichroism
Sign Up to like & getrecommendations! Published in 2018 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.7b04478
Abstract: Quantum dot (QD) based nanomaterials are very promising materials for the fabrication of optoelectronic devices like solar cells, light emitting diodes (LEDs), and photodetectors as well as as reporters for chemo- and biosensing and bioimaging.… read more here.
Keywords: energy; energy dependence; photoluminescence quantum; circular dichroism ... See more keywords
Dual-Band Luminescent Lead-Free Antimony Chloride Halides with Near-Unity Photoluminescence Quantum Efficiency
Sign Up to like & getrecommendations! Published in 2019 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.9b02935
Abstract: Low-dimensional organic–inorganic metal halide hybrids (OIMHs) with an ultrabroad-band emission are promising as downconversion phosphors for solid-state lighting. However, toxicity of Pb and low photoluminescence quantum efficiency (PLQE) hamper their application. Herein, two zero-dimensional (0D)… read more here.
Keywords: quantum efficiency; dual band; photoluminescence quantum; band ... See more keywords
Warm-White-Light Perdeuterated Dy(III) Complex with a Photoluminescence Quantum Yield of up to 72% in Deuterated Chloroform.
Sign Up to like & getrecommendations! Published in 2023 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.3c00721
Abstract: Herein, a deuteration strategy is proposed to enhance the photoluminescence quantum yield (PLQY) of a Dy(III) complex. The perdeuterated Dy(III) complex Dy(D-DPPOP)3 (D-DPPOP = 6-[bis(phenyl-d5)phosphoryl]picolinate-d3) exhibits a high PLQY of up to 72% in deuterated… read more here.
Keywords: deuterated chloroform; iii complex; quantum yield; iii ... See more keywords
L-Type Ligand-Assisted Acid-Free Synthesis of CsPbBr3 Nanocrystals with Near-Unity Photoluminescence Quantum Yield and High Stability.
Sign Up to like & getrecommendations! Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b01666
Abstract: X-type ligands, for example, the pair of oleylamine (OAm) and oleic acid (OA), have been widely used to prepare CsPbX3 nanocrystals (NCs). However, the proton exchange between coordinated OAm and OA may induce the detachment… read more here.
Keywords: near unity; unity photoluminescence; photoluminescence quantum; yield ... See more keywords
Organic Lead Halide Nanocrystals Providing an Ultra-Wide Color Gamut with Almost-Unity Photoluminescence Quantum Yield.
Sign Up to like & getrecommendations! Published in 2021 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c05961
Abstract: The most attractive aspect of perovskite nanocrystals (NCs) for optoelectronic applications is their widely tunable emission wavelength, but it has been quite challenging to tune it without sacrificing the photoluminescence quantum yield (PLQY). In this… read more here.
Keywords: color; color gamut; photoluminescence quantum; wide color ... See more keywords
Understanding and Preventing Photoluminescence Quenching to Achieve Unity Photoluminescence Quantum Yield in Yb:YLF Nanocrystals
Sign Up to like & getrecommendations! Published in 2023 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.2c17888
Abstract: Ytterbium-doped LiYF4 (Yb:YLF) is a commonly used material for laser applications, as a photon upconversion medium, and for optical refrigeration. As nanocrystals (NCs), the material is also of interest for biological and physical applications. Unfortunately,… read more here.
Keywords: photoluminescence; unity; quantum yield; concentration ... See more keywords
High External Photoluminescence Quantum Yield in Tin Halide Perovskite Thin Films
Sign Up to like & getrecommendations! Published in 2021 at "ACS Energy Letters"
DOI: 10.1021/acsenergylett.0c02612
Abstract: We show that pristine thin films made of tin halide perovskite have external photoluminescence quantum yield comparable to that of lead halide perovskite, i.e., the material in use to prepare state-of-the-art perovskite solar cells. read more here.
Keywords: thin films; halide perovskite; external photoluminescence; photoluminescence quantum ... See more keywords