Reversible 3D laser printing of perovskite quantum dots inside a transparent medium

Huang, Xiongjian; Guo, Qianyi; Yang, Dandan; Xiao, Xurui; Liu, Xiaofeng; Xia, Zhiguo; Fan, Fengjia; Qiu, Jianrong; Dong, Guoping

doi:10.1038/s41566-019-0538-8

Cited by 344 publications

(270 citation statements)

References 36 publications

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“…[30] It is supposed to yield ferroelectric order at room temperature already. [31,32] Ferroelec tricity has been considered to be responsible for the enhanced performance of the perovskite solar cells using MAPbI 3 as an absorber [33][34][35] with ferroelectric domain walls supposed to act as p-n junctions aiding the separation of photoexcited electron-hole pairs and reducing recombination of charge carriers. [34] Although crucial information about ordering and dipolar dynamics of MAPbX 3 can be obtained from dielectric spec troscopy, if measured across broad frequency and temperature ranges, only limited data exist.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

Anusca

Balčiu̅nas

Gemeiner

et al. 2017

Advanced Energy Materials

174

264

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Due to the unprecedented rapid increase of their power conversion efficiency, hybrid organic-inorganic perovskites CH 3 NH 3 PbX 3 (X = I, Br, Cl) can potentially revolutionize the world of solar cells. However, despite tremendous research activity, the origin of the exceptionally large diffusion length of their photogenerated charge carriers, that is, their low recombination rate, remains elusive. Using frequency and temperature-dependent dielectric measurements across the entire frequency spectrum, it is shown that the dielectric constant conserves very high values (>27) for frequencies below 1 THz in all three halides. This efficiently prevents photocarrier trapping and their recombination owing to the strong screening of charged entities. By combining ultrasonic and Raman spectroscopy with dielectric analysis, similarly large contributions to the dielectric constant are attributed to the dipolar disorder of the CH 3 NH 3 + cations as well as lattice dynamics in the gigahertz range yielding dielectric constants of ε stat = 62 for the iodide, 58 for the bromide, and about 45 for the chloride below 1 GHz at room temperature. Disorder continuously reduces for decreasing temperature. Dipole dynamics prevail in the intermediate tetragonal phase. The low-temperature orthorhombic state is antipolar. No indications of ferroelectricity are found.

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Section: Introductionmentioning

confidence: 99%

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

Anusca

Balčiu̅nas

Gemeiner

et al. 2017

Advanced Energy Materials

174

264

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“…Much effort has been devoted to improving the processing accuracy, and spatial resolutions as low as micrometers have been achieved in laser cutting, welding, marking, and stereolithography in an atmospheric environment [3][4][5][6] . The femtosecond laser (fs laser) is a particularly promising approach from this point of view, in addition to its three-dimensional (3D) processing capability [7][8][9][10][11][12] and broad-spectrum material usability [13][14][15][16][17][18] . Sub-diffractionlimited feature sizes at a level of tens of nanometers based on multiphoton absorption 19,20 , thresholding 21 , shrinkage 22,23 , and stimulation emission depletion effect 24,25 , have also been realized in fs-laser-induced photocuring of polymers, which unfortunately are not applicable to solid materials.…”

Section: Introductionmentioning

confidence: 99%

O-FIB: far-field-induced near-field breakdown for direct nanowriting in an atmospheric environment

et al. 2020

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Nanoscale surface texturing, drilling, cutting, and spatial sculpturing, which are essential for applications, including thin-film solar cells, photonic chips, antireflection, wettability, and friction drag reduction, require not only high accuracy in material processing, but also the capability of manufacturing in an atmospheric environment. Widely used focused ion beam (FIB) technology offers nanoscale precision, but is limited by the vacuum-working conditions; therefore, it is not applicable to industrial-scale samples such as ship hulls or biomaterials, e.g., cells and tissues. Here, we report an optical far-field-induced near-field breakdown (O-FIB) approach as an optical version of the conventional FIB technique, which allows direct nanowriting in air. The writing is initiated from nanoholes created by femtosecondlaser-induced multiphoton absorption, and its cutting "knife edge" is sharpened by the far-field-regulated enhancement of the optical near field. A spatial resolution of less than 20 nm (λ/40, with λ being the light wavelength) is readily achieved. O-FIB is empowered by the utilization of simple polarization control of the incident light to steer the nanogroove writing along the designed pattern. The universality of near-field enhancement and localization makes O-FIB applicable to various materials, and enables a large-area printing mode that is superior to conventional FIB processing.

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“…[ 27 ] Besides, perovskite quantum dots were also employed inside a transparent glass and showed reversible luminescence properties, suggesting potential applications such as information encryption and 3D artwork. [ 28 ] Furthermore, 3D printing for white light lampshades has utilized room temperature phosphorescence from organic species. [ 29 ] Scientists are devoting their efforts to combining 3D printing and photonic materials.…”

Section: Introductionmentioning

confidence: 99%

Bright Green Emitting CaYAlO₄:Tb³⁺,Ce³⁺ Phosphor: Energy Transfer and 3D‐Printing Artwork

Zhou

Hong

et al. 2020

Advanced Optical Materials

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The environmentally friendly and low‐priced CaYAlO4:Tb3+ nanophosphors are combined with good optically transparent materials for the application in 3D printing. For ultraviolet (UV) light‐emitting diode excitation, CaYAlO4:Tb0.07Cey and CaYAlO4:Ce0.05Tbx nanophosphors are prepared by a sol–gel route and systematically studied for optimal excitation at 380 nm to give strong green emission to which human and aquatic animals eyes are generally sensitive. This is benefited from the dipole and spin allowed transition of Ce3+ and the 92.5% efficient energy transfer from Ce3+ to Tb3+ in this host. Polydimethylsiloxane, with 92% transmittance in the visible spectral region, is a valid choice to make the shaped artwork by a templating method, combined with the nanoparticles to give a uniform distribution, as determined by X‐ray microcomputed tomography. Polylactic acid is also employed to create a frog artwork by the fused deposition modeling method. The final 3D‐printed colorful artwork is displayed herein together with that produced by the templating method under different light source excitation to suggest a novel expression of aesthetic concepts and a potential application in the future marine environment such as a lamp to attract aquatic animals or a buoy to guide ships.

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Reversible 3D laser printing of perovskite quantum dots inside a transparent medium

Cited by 344 publications

References 36 publications

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

O-FIB: far-field-induced near-field breakdown for direct nanowriting in an atmospheric environment

Bright Green Emitting CaYAlO₄:Tb³⁺,Ce³⁺ Phosphor: Energy Transfer and 3D‐Printing Artwork

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Reversible 3D laser printing of perovskite quantum dots inside a transparent medium

Cited by 344 publications

References 36 publications

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

Dielectric Response: Answer to Many Questions in the Methylammonium Lead Halide Solar Cell Absorbers

O-FIB: far-field-induced near-field breakdown for direct nanowriting in an atmospheric environment

Bright Green Emitting CaYAlO4:Tb3+,Ce3+ Phosphor: Energy Transfer and 3D‐Printing Artwork

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Product

Resources

About

Bright Green Emitting CaYAlO₄:Tb³⁺,Ce³⁺ Phosphor: Energy Transfer and 3D‐Printing Artwork