Stokes shift ≈ Stokes shift
View article
Two-photon AIE bio-probe with large Stokes shift for specific imaging of lipid droplets Open
A novel AIEgen with prominent two-photon excitation was rationally developed for specific lipid-droplet imaging in cells and tissues.
View article
Highly Emissive Self‐Trapped Excitons in Fully Inorganic Zero‐Dimensional Tin Halides Open
The spatial localization of charge carriers to promote the formation of bound excitons and concomitantly enhance radiative recombination has long been a goal for luminescent semiconductors. Zero‐dimensional materials structurally impose ca…
View article
Origin of the Size-Dependent Stokes Shift in CsPbBr<sub>3</sub> Perovskite Nanocrystals Open
The origin of the size-dependent Stokes shift in CsPbBr3 nanocrystals (NCs) is explained for the first time. Stokes shifts range from 82 to 20 meV for NCs with effective edge lengths varying from ∼4 to 13 nm. We show that the Stokes shift …
View article
An arch-bridge-type fluorophore for bridging the gap between aggregation-caused quenching (ACQ) and aggregation-induced emission (AIE) Open
A novel unique arch-bridge-like stator, after the rigidification of rotor 1 by intramolecular H-bonding, afforded two classes of solution and solid dual photoluminescence (PL) molecules.
View article
A fluorescent dye with large Stokes shift and high stability: synthesis and application to live cell imaging Open
A new fluorescent dye with large Stokes shift and excellent photo-stability for live cell imaging has been developed.
View article
Extrinsic nature of the broad photoluminescence in lead iodide-based Ruddlesden–Popper perovskites Open
Two-dimensional metal halide perovskites of Ruddlesden–Popper type have recently moved into the centre of attention of perovskite research due to their potential for light generation and for stabilisation of their 3D counterparts. It has b…
View article
Boosting the Self‐Trapped Exciton Emission in Alloyed Cs<sub>2</sub>(Ag/Na)InCl<sub>6</sub> Double Perovskite via Cu<sup>+</sup> Doping Open
Fundamental understanding of the effect of doping on the optical properties of 3D double perovskites (DPs) especially the dynamics of self‐trapped excitons (STEs) is of vital importance for their optoelectronic applications. Herein, a uniq…
View article
Tuning Emission and Electron–Phonon Coupling in Lead-Free Halide Double Perovskite Cs<sub>2</sub>AgBiCl<sub>6</sub> under Pressure Open
Lead-free halide double perovskites have been proposed as candidates to replace Pb-halide perovskites in photovoltaic and optoelectronic applications due to their enhanced stability and nontoxicity. However, the limited understanding of th…
View article
A molecular design strategy toward enzyme-activated probes with near-infrared I and II fluorescence for targeted cancer imaging Open
A molecular design strategy is established to access diverse enzyme-activated probes that are excitable and emit in the NIR (I and II) region with favorable Stokes shifts, enabling targeted cancer imaging by real-time monitoring enzyme act…
View article
Progress in Tuning Emission of the Excited-State Intramolecular Proton Transfer (ESIPT)-Based Fluorescent Probes Open
In this review, we will summarize our recent progress in the design and application of novel organic sensors with emission in the near-infrared region (600-900 nm). By coupling different functional groups with excited-state intramolecular …
View article
An NIR-emitting lysosome-targeting probe with large Stokes shift via coupling cyanine and excited-state intramolecular proton transfer Open
A NIR-emitting probe with a large Stokes shift (Δλ ≈ 234 nm) can selectively show lysosome organelles without exhibiting “an alkalinizing effect”.
View article
Anti‐Quenching NIR‐II J‐Aggregates of Benzo[c]thiophene Fluorophore for Highly Efficient Bioimaging and Phototheranostics Open
Molecular fluorophores with the second near‐infrared (NIR‐II) emission hold great potential for deep‐tissue bioimaging owing to their excellent biocompatibility and high resolution. Recently, J‐aggregates are used to construct long‐wavelen…
View article
Expanding Anti‐Stokes Shifting in Triplet–Triplet Annihilation Upconversion for In Vivo Anticancer Prodrug Activation Open
A strategy to expand anti‐Stokes shifting from the far‐red to deep‐blue region in metal‐free triplet–triplet annihilation upconversion (TTA‐UC) is presented. The method is demonstrated by in vivo titration of the photorelease of an antican…
View article
Light-Up Lipid Droplets Dynamic Behaviors Using a Red-Emitting Fluorogenic Probe Open
Intracellular lipid metabolism occurs in lipid droplets (LDs), which is critical to the survival of cells. Imaging LDs is an intuitive way to understand their physiology in live cells. However, this is limited by the availability of specif…
View article
Stokes-Shift-Engineered Indium Phosphide Quantum Dots for Efficient Luminescent Solar Concentrators Open
Luminescent solar concentrators (LSCs) show promise because of their potential for low-cost, large-area, and high-efficiency energy harvesting. Stokes shift engineering of luminescent quantum dots (QDs) is a favorable approach to suppress …
View article
Bulk Assembly of Zero-Dimensional Organic Lead Bromide Hybrid with Efficient Blue Emission Open
Zero-dimensional (0D) organic metal halide hybrids are an emerging class of light emitting materials with exceptional photoluminescence quantum efficiencies (PLQEs), thanks to their perfect “host–guest” structures with light emitting metal…
View article
Investigation into the Photoluminescence Red Shift in Cesium Lead Bromide Nanocrystal Superlattices Open
The formation of cesium lead bromide (CsPbBr3) nanocrystal superlattices (NC SLs) is accompanied by a red shift in the NC photoluminescence (PL). The values of the PL red shift reported in the literature range from none to ∼100 meV without…
View article
Existence of a Size-Dependent Stokes Shift in CsPbBr<sub>3</sub> Perovskite Nanocrystals Open
The existence of a size-dependent Stokes shift is observed in CsPbBr3 perovskite nanocrystals for the first time. Stokes shifts range from ~100 to 30 meV for particles with edge lengths between ~4 and 12 nm, respectively.
View article
Rb<sub>2</sub>CuX<sub>3</sub> (X = Cl, Br): 1D All‐Inorganic Copper Halides with Ultrabright Blue Emission and Up‐Conversion Photoluminescence Open
All‐inorganic metal halides such as Cs 4 PbX 6 and CsPbX 3 (X = Cl, Br, and I) are attracting global attention owing to their promise in optoelectronic applications. However, the presence of the toxic heavy metal lead (Pb) in these materia…
View article
Bright Luminescence from Indirect and Strongly Bound Excitons in h-BN Open
A quantitative analysis of the excitonic luminescence efficiency in hexagonal boron nitride (h-BN) is carried out by cathodoluminescence in the ultraviolet range and compared with zinc oxide and diamond single crystals. A high quantum yiel…
View article
Bioinspired large Stokes shift small molecular dyes for biomedical fluorescence imaging Open
Long Stokes shift dyes that minimize cross-talk between the excitation source and fluorescent emission to improve the signal-to-background ratio are highly desired for fluorescence imaging. However, simple small molecular dyes with large S…
View article
Excited-State Intramolecular Proton Transfer Dyes with Dual-State Emission Properties: Concept, Examples and Applications Open
Dual-state emissive (DSE) fluorophores are organic dyes displaying fluorescence emission both in dilute and concentrated solution and in the solid-state, as amorphous, single crystal, polycrystalline samples or thin films. This comes in co…
View article
Engineering of mCherry variants with long Stokes shift, red-shifted fluorescence, and low cytotoxicity Open
MCherry, the Discosoma sp. mushroom coral-derived monomeric red fluorescent protein (RFP), is a commonly used genetically encoded fluorophore for live cell fluorescence imaging. We have used a combination of protein design and directed evo…
View article
Combined Temperature and Pressure Sensing Using Luminescent NaBiF<sub>4</sub>:Yb,Er Nanoparticles Open
The room temperature synthesis and photoluminescence properties of hexagonal phase NaBiF4 nanocrystals doped with lanthanide ions have been presented. An efficient infrared Stokes emission and upconverted photoluminescence from the rare-ea…
View article
PbS Nanocrystal Emission Is Governed by Multiple Emissive States Open
Lead chalcogenide colloidal nanocrystals (NCs) are promising materials for solution processable optoelectronics. However, there is little agreement on the identity and character of PbS NC emission for different degrees of quantum confineme…
View article
Efficient Narrowband Circularly Polarized Light Emitters Based on 1,4‐B,N‐embedded Rigid Donor–Acceptor Helicenes Open
Narrow‐band emission is essential for applicable circularly polarized luminescence (CPL) active materials in ultrahigh‐definition CP‐OLEDs. One of the most promising classes of CPL active molecules, helicenes, however, typically exhibit br…
View article
Controllable and large-scale synthesis of carbon quantum dots for efficient solid-state optical devices Open
Carbon quantum dots (C-dots) showed excellent structure-tunable optical properties, mainly composed of carbon, nitrogen and oxygen. They have been used for various types of solid-state optical devices. Due to the photoluminescence quenchin…
View article
Tunable and Efficient Red to Near-Infrared Photoluminescence by Synergistic Exploitation of Core and Surface Silver Doping of CdSe Nanoplatelets Open
We report on the synthesis of silver (Ag)-doped CdSe nanoplatelets (NPLs) via postsynthesis cation exchange, using silver acetate as the Ag precursor. High-resolution transmission electron microscopy and X-ray diffraction confirmed that th…
View article
White light employing luminescent engineered large (mega) Stokes shift molecules: a review Open
Illustration of white light designated with the 1931-CIE coordinate of (0.33, 0.33), and photophysical mechanisms that contribute to large Stoke shift molecules.
View article
Design of Large Stokes Shift Fluorescent Proteins Based on Excited State Proton Transfer of an Engineered Photobase Open
The incredible potential for fluorescent proteins to revolutionize biology has inspired the development of a variety of design strategies to address an equally broad range of photophysical characteristics, depending on potential applicatio…