MRS Meetings and Events


EN05.10.19 2023 MRS Fall Meeting

Solvent-Annealing Assisted 3D Printing of High-Performance, Freestanding Perovskite Nanolasers

When and Where

Nov 29, 2023
8:00pm - 10:00pm

Hynes, Level 1, Hall A



Shiqi Hu1,Ji Tae Kim1

The University of Hong Kong1


Shiqi Hu1,Ji Tae Kim1

The University of Hong Kong1
Inorganic metal halide perovskites are emerging as promising optoelectronic materials due to their strong, tunable, and high-color-purity photo- and electroluminescence, and solution processability<sup>1–3</sup>. Recently, extensive research has been made to utilize perovskite nanowires as lasers due to their structural benefits such as ultra-compact sizes, highly localized coherent output, and efficient waveguiding<sup>4,5</sup>. The current fabrication of perovskite nanowires relies on electron beam lithography, photolithography, chemical vapor deposition, solution-phase synthesis, and nanoimprinting. That is to say, these processes are energy- and labor-intensive, which is in stark contrast with the industrial low-cost requirements. Furthermore, technological challenges associated with individual tailoring of nanowire geometries remain unresolved, making it difficult to manipulate stimulated emission characteristics at the single nanowire level. A new method that can fabricate perovskite nanowires with programmed shape, dimension, and placement is in great demand for addressing the abovementioned issue.<br/><br/>Here, we demonstrate an electrohydrodynamic (EHD) 3D printing of perovskite nanowires for high-performance bespoke lasers. The printed perovskite nanowire presents a two-photon pumped Fabry–Pérot (FP) mode lasing. By adjusting the height of a freestanding nanowire at will, we are able to select the lasing mode and also control the lasing threshold and mode spacing (△λ). On this basis, we successfully demonstrated the 3D printed nanowires arrays for multi-level anti-counterfeiting security labels by storing information in the cavity-height-dependent features such as the lasing threshold and mode spacing (△λ), which are unclonable. More importantly, solvent annealing was exploited to increase the grain size and crystallinity by promoting recrystallization in the printed nanowire. As a result, the lasing threshold was drastically improved from 25 µJ/cm<sup>2</sup> to 3 µJ/cm<sup>2</sup>, which is the leading record for CsPbBr<sub>3</sub> FP lasers. It is also worth mentioning that the advanced features of our technique such as maskless operation and low-cost production with high stability make it an effective platform to bring the proof-of-concept demonstration into practical commercial application. Likewise, these outcomes not only give us inspiration for the function-oriented design of the nanolaser-based devices but also facilitate the development of high-performance perovskite-based photonic anti-counterfeiting applications. Last but not least, our method could provide an excellent platform to construct scalable, on-demand laser-based photonic devices.<br/><br/>1. Stranks, S. D. <i>et al.</i> Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber. <i>Science (80-. ).</i> <b>342</b>, 341–344 (2013).<br/>2. Braly, I. L. <i>et al.</i> Hybrid perovskite films approaching the radiative limit with over 90% photoluminescence quantum efficiency. <i>Nat. Photonics 2018 126</i> <b>12</b>, 355–361 (2018).<br/>3. Lin, K. <i>et al.</i> Perovskite light-emitting diodes with external quantum efficiency exceeding 20 percent. <i>Nat. 2018 5627726</i> <b>562</b>, 245–248 (2018).<br/>4. Chen, M. <i>et al.</i> 3D Nanoprinting of Perovskites. <i>Adv. Mater.</i> <b>31</b>, 1–8 (2019).<br/>5. Chen, M. <i>et al.</i> Three-Dimensional Perovskite Nanopixels for Ultrahigh-Resolution Color Displays and Multilevel Anticounterfeiting. <i>Nano Lett.</i> <b>21</b>, 5186–5194 (2021).


3D printing | perovskites

Symposium Organizers

Marina Leite, University of California, Davis
Lina Quan, Virginia Institute of Technology
Samuel Stranks, University of Cambridge
Ni Zhao, Chinese University of Hong Kong

Symposium Support

Enli Technology Co., LTD

APL Energy | AIP Publishing

Session Chairs

So Min Park
Lina Quan

In this Session

Interstitial Defect Relaxation DFT Study of Lead Halide Perovskites

Water-Assisted Morphology and Crystal Engineering of Hybrid Organic-Inorganic Halide Perovskite: Implications for Optoelectronic Properties

Self-Leveling Inks for Engineering Large Area Uniformity in High-Performance Flexography-Printed Perovskite Solar Cells

Towards Highly Efficient Fully Evaporated Perovskite/Si Tandem Solar Cells

The Outstanding Role of Dielectricity in Hybrid Solar Cell Absorbers

Controlling The Crystallization of Pure Bromide Quasi-2-Dimensional Perovskite Crystals for High Efficiency Pure-Blue Light-Emitting Diodes

Compositional Engineering of Single-Crystal Perovskite for Highly Efficient Photovoltaics

Atomistic Origin of Transparent Absorption Spectra of Halide Perovskites

Exploring a Novel Family of Conjugated Polymers for High Efficiency and Thermally Stable Perovskite Solar Cells

Charge Transfer Doping of Ruddlesden–Popper Metal–Halide Perovskites via Bulk Incorporation of Organic Molecular Dopants

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