Ye Wu

Personal email address: [email protected]

[Nature Photonics @NaturePhotonics]

New Article online: Dipole-assisted functionalization enables long-range ordering of ZnTeSe quantum dots for efficient and stable deep-blue electroluminescence.

https://t.co/ro2aHdHjAI

[Nature Photonics @NaturePhotonics]

New Article online: Large exciton longitudinal–transverse splitting enables room-temperature ultrafast coherent polaritonics in layered perovskite crystals.

https://t.co/pxLvUAdnYg

[Nature Photonics @NaturePhotonics]

New Article online: Organic intercalation strategy for efficient all-evaporated perovskite light-emitting diodes.

https://t.co/l33Jid8i3e

[Lakshminarayana Polavarapu @Polavarapu_Lab]

The Combination of Chiral Assembly and Chiral Template Effects Boosts Circularly Polarized Luminescence of Perovskite Nanocrystals - Pawlak - Angewandte Chemie International Edition - Wiley Online Library https://t.co/MBJpDSpwE7

[Mercouri Kanatzidis @MercouriK]

The weird and wonderful properties of halide perovskites mostly come from one thing: the 6s² (or 5s²) lone pair on Pb²⁺ and Sn²⁺ at the B site, not from the organic cations or “soft lattice” alone. That lone pair: Mixes strongly with the halogen p orbitals and creates a high, very dispersive valence band, so you get light holes, good band alignment for photovoltaics, and often defect-tolerant behavior.

Makes valence band top antibonding, which flips the usual trends so the bandgap widens with temperature and shrinks with pressure.

Drives hidden local polar distortions and very anharmonic lattice dynamics, which give large ionic dielectric constants, unusually big positive thermal expansion, and low lattice thermal conductivity.

The main message is: if you want to understand why Pb/Sn halide perovskites are so special, you must start from the stereochemically active lone pair on Pb/Sn, and this same design motif (lone-pair cations in highly connected frameworks) is a good roadmap for discovering new high-performance semiconductors beyond the classic perovskites. See this paper:
https://t.co/Zef6mefQpw

[Narayan Pradhan @npiacs]

Silica Coating on CsPbBr3 Nnaocrystals https://t.co/T8j95xKdlD

[Ye Wu @YeWu32]

@ArghyaS18897681 @IITKanpur @Chemistry_IITK Exciting news!! Congrats!!

[Ye Wu @YeWu32]

Over 1 years preparation and revision. Finally it's online. Strategies for Stabilizing Metal Halide Perovskite Light-Emitting Diodes: Bulk and Surface Reconstruction of Perovskite Nanocrystals | ACS Nano https://t.co/PYB6VdkqZb

[Pinzee @Pinzheng1]

Deep Blue QLEDs are approaching 25% EQE!!!

https://t.co/NWus7IEUnj

[Mercouri Kanatzidis @MercouriK]

New in JACS! Chiral hybrid lead halides templated by L-nicotinium form distinct 1D & 0D motifs, exhibiting broadband emission and polarized light emission. Their optical activity is directly linked to the chiral organic cation and halide sublattice. https://t.co/qoF9asfLLW

[Ye Wu @YeWu32]

Amazing soap bubbles

[Maksym Kovalenko @maksymuki]

There is still some room for compositional engineering of perovskite nanocrystals, yielding peculiar optical properties, see our latest report.
👇
Highly Emissive Colloidal Nanocrystals of a “2.5-Dimensional” Monomethylhydrazinium Lead Bromide | Journal of the American Chemical Society https://t.co/o8W9Gbchnt

[Pinzee @Pinzheng1]

Perovskite Nanocrystal Self-Assemblies in 3D Hollow Templates | ACS Nano https://t.co/peH3iQFLlI

[Ye Wu @YeWu32]

Excitation‐Dependent Anti‐Thermal Quenching in Zero‐Dimensional Manganese Bromides for Photoluminescence and X‐Ray Scintillation - Wu - Angewandte Chemie International Edition - Wiley Online Library https://t.co/w02OAlPC5Y

[Ye Wu @YeWu32]

A big improvement in copper iodide scintillators👍👍
Solution processed hundred-micron scale vertical growth of low-symmetrical zero-dimensional metal halide for high-performance X-ray imaging
https://t.co/Z9eWiG6yhc

[Pinzee @Pinzheng1]

Bidentate Lewis Base Ligand-Mediated Surface Stabilization and Modulation of the Electronic Structure of CsPbBr3 Perovskite Nanocrystals | Journal of the American Chemical Society https://t.co/KQYU9qrWPD

[Quinten Akkerman @Q_Akkerman]

Interested in optical gain and ASE in perovskite Quantum dots, and want to understand the underlying gain mechanism? Look no further!

Read all about in our recent paper on Biexcitonic Optical Gain in CsPbBr3 Quantum Dots!

@ACSPhotonics : https://t.co/IXjw8WSGgg

[D-CHAB @ETH_DCHAB]

Congratulations to Javier Pérez-Ramírez @catalysis_eth (D-CHAB), Maksym Kovalenko @mvkovalenko (D-CHAB) and Gisbert Schneider (D-BSSE, D-CHAB) who are among the Highly Cited Researchers 2024 selected by @Clarivate !

https://t.co/r1G3oYaYgU

[Quinten Akkerman @Q_Akkerman]

Does energy transfer from quantum dots to dye molecules require FRET (and therefor spectral overlap)? No, not when using very closely-bound dye molecules with efficient Dexter energy transfer!

Read all about it @angew_chem : https://t.co/tFE9sT7NsS

With @ivaninfante76

[Lakshminarayana Polavarapu @Polavarapu_Lab]

Inducing Efficient and Multiwavelength Circularly Polarized Emission From Perovskite Nanocrystals Using Chiral Metasurfaces - Fiuza‐Maneiro - Advanced Materials - Wiley Online Library https://t.co/SoLqH2epMh @agusmihi @cinbio_uvigo @uvigo