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A Prototype of a Volumetric Three‐Dimensional Display Based on Programmable Photo‐Activated Phosphorescence
Author(s) -
Wan Shigang,
Zhou Hongqi,
Lin Jinxiong,
Lu Wei
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202003160
Subject(s) - phosphorescence , photochemistry , chemistry , excited state , visible spectrum , singlet oxygen , wavelength , materials science , fluorescence , optoelectronics , optics , oxygen , atomic physics , physics , organic chemistry
A proof‐of‐principle prototype of a volumetric 3D‐displaying system is demonstrated by utilizing the photo‐activated phosphorescence of two long‐lived phosphorescent metal‐porphyrins in dimethyl sulfoxide (DMSO), a photochemically deoxygenating solvent. The first phosphorescent sensitizer, Pt(TPBP), absorbs a light beam with a wavelength of 635 nm, and the sensitized singlet oxygen is scavenged by DMSO. The second phosphorescent emitter, Pt(OEP), absorbs a light beam with a wavelength of 532 nm and visibly phosphoresces only in the deoxygenated zone generated by the first sensitizer. The phosphorescent voxels, 3D images, and animations are well‐defined by the intersections of the 635‐nm and 532‐nm light beams that are programmable by tuning of the excitation‐power densities, the beam shapes, and the kinetics. As a pivotal selection rule for the phosphorescent molecular couple used in this 3D‐displaying system, their absorptions and emissions must be orthogonal to each other, so that they can be excited and addressed independently.