A Two‐Dimensional Ruddlesden–Popper Perovskite Nanowire Laser Array based on Ultrafast Light‐Harvesting Quantum Wells

Zhang, Haihua; Wu, Yishi; Liao, Qing; Zhang, Zhaoyi; Liu, Yanping; Gao, Qinggang; Liu, Peng; Li, Meili; Yao, Jiannian; Fu, Hongbing

doi:10.1002/ange.201802515

Cited by 35 publications

(30 citation statements)

References 27 publications

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“…Recently, the amplified spontaneous emission (ASE) and lasing behaviors of 2D RPPs have been demonstrated . However, the lasing is mostly obtained from solution‐processed spin‐coated thin films, in which multiple RPP components inevitably form with different bandgaps that drive cascade carrier transfer and may reshape the build‐up of population inversion . Also, the development of continuous‐wave or electrically driven RPP lasers central for practical applications is still challenging.…”

Section: Auger Decay Lifetime (τAuger) At High Excitation Fluence (Pmentioning

confidence: 99%

Lasing from Mechanically Exfoliated 2D Homologous Ruddlesden–Popper Perovskite Engineered by Inorganic Layer Thickness

et al. 2019

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approach to realize new functionalities through facile van der Waals coupled 2D layers. [6] Owing to the large dielectric mismatch between the inorganic and organic layers, the quasi-2D RPPs naturally form quantum well structures, in which, the inorganic and organic layers serve as potential wells and barriers, respectively. [7] Moreover, these quantum confined structures impart the appealing characteristics of improved environmental stability and enhanced exciton confinement. [2] These make the quasi-2D RPPs promising for solar cell and light-emitting diode (LED) applications. [5,[8][9][10] Recently, the amplified spontaneous emission (ASE) and lasing behaviors of 2D RPPs have been demonstrated. [11][12][13][14][15][16][17] However, the lasing is mostly obtained from solution-processed spin-coated thin films, in which multiple RPP components inevitably form with different bandgaps that drive cascade carrier transfer and may reshape the build-up of population inversion. [11,14,15,18] Also, the development of continuous-wave or electrically driven RPP lasers central for practical applications is still challenging. The exploitation of homologous RPP lasers is of great importance to gain further insights into the intrinsic lasing mechanisms of these quantum well-like structures as well as the design of low-threshold 2D 2D Ruddlesden-Popper perovskites (RPPs) have aroused growing attention in light harvesting and emission applications owing to their high environmental stability. Recently, coherent light emission of RPPs was reported, however mostly from inhomologous thin films that involve cascade intercompositional energy transfer. Lasing and fundamental understanding of intrinsic laser dynamics in homologous RPPs free from intercompositional energy transfer is still inadequate. Herein, the lasing and loss mechanisms of homologous 2D (BA) 2 (MA) n −1 Pb n I 3n+1 RPP thin flakes mechanically exfoliated from the bulk crystal are reported. Multicolor lasing is achieved from the large-n RPPs (n ≥ 3) in the spectral range of 620-680 nm but not from small-n RPPs (n ≤ 2) even down to 78 K. With decreasing n, the lasing threshold increases significantly and the characteristic temperature decreases as 49, 25, and 20 K for n = 5, 4, and 3, respectively. The n-engineered lasing behaviors are attributed to the stronger Auger recombination and exciton-phonon interaction as a result of the enhanced quantum confinement in the smaller-n perovskites. These results not only advance the fundamental understanding of loss mechanisms in both inhomologous and homologous RPP lasers but also provide insights into developing low-threshold, substrate-free, and multicolor 2D semiconductor microlasers.2D Ruddlesden-Popper perovskites (RPPs), with the general chemical formula of L 2 (MA) n−1 M n X 3n+1 , are composed of welldefined inorganic layers with corner connected [MX 6 ] 4− octahedra and long organic chains (L + ) intercalated between these inorganic fragments. [1][2][3][4][5] This structure promises a viable

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Section: Auger Decay Lifetime (τAuger) At High Excitation Fluence (Pmentioning

confidence: 99%

Lasing from Mechanically Exfoliated 2D Homologous Ruddlesden–Popper Perovskite Engineered by Inorganic Layer Thickness

et al. 2019

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“…Among them, the 75 nm thick film of (NMA) 2 (FA)Pb 2 Br 7 reached an optical gain value of 330 cm −1 with a low threshold of 12 µJ cm −2 . Later then, they demonstrated room‐temperature thin‐film microring lasers based on solution‐processed (BA) 2 (MA) n ‐1 Pb n Br 3 n +1 multiple QWs, and nanowire lasers based on (BA) 2 (FA) n ‐1 Pb n Br 3 n +1 mixed multiple QWs . The high‐density large area microring/nanowire laser arrays were fabricated by using a facile polydimethylsiloxane template confined solution‐growth method.…”

Section: Different Dimensional Metal Halide Perovskites For Lasingmentioning

confidence: 99%

Section: Different Dimensional Metal Halide Perovskites For Lasingmentioning

confidence: 99%

Recent Progress in Metal Halide Perovskite Micro‐ and Nanolasers

Wei

Liang

et al. 2019

Advanced Optical Materials

109

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Lead halide perovskites are considered as very promising photovoltaic materials due to their tunable direct bandgaps, large absorption coefficients, long carrier diffusion lengths, and ultralow trap state densities, etc. With these unique properties, the lead halide perovskites have also demonstrated great potential for use as semiconductor gain materials. In this review, a snapshot on the recent advances of lead halide perovskite micro‐ and nanolasers is given. The dependence of lasing performance on the perovskite dimensionality, crystal size, and operation temperature is systematically discussed. Furthermore, the development of continuous wave (cw) pumped perovskite lasers and lead‐free perovskite lasers is also summarized. In the final section, the challenges and future prospects of metal halide perovskite lasers are provided. These pieces of knowledge would help advancing the development of perovskite on‐chip coherent light sources.

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“…As a consequence, a multi-mode WGM laser was observed with high-quality factor of ~2600 and low threshold of ~12.2 μJ/cm 2 under 400 nm, 150 fs and 1k Hz pulsed excitation, as shown in Figure 10C. Using a similar method, they further reported high-density largeareas NW arrays in 2D-RPPs of (BA) 2 (FA) n−1 Pb n Br 3n+1 with width of ~2 μm, height of ~420 nm and length of 17 μm [113]. The NW laser arrays exhibited high photo-stability, high quality factor (~1800) with FWHM of 0.3 nm and excitation threshold of 27.2 μJ/cm 2 under a 400 nm laser pump.…”

Section: Perovskite Lasermentioning

confidence: 74%

Advances in inorganic and hybrid perovskites for miniaturized lasers

Liu

Huang

et al. 2020

Nanophotonics

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AbstractThe rapid advancement of perovskite-based optoelectronics devices has caught the world’s attention due to their outstanding properties, such as long carrier lifetime, low defect trap density, large absorption coefficient, narrow linewidth and high optical gain. Herein, the photonic lasing properties of perovskites are reviewed since the first stimulated emission of perovskites observed in 2014. The review is mainly focused on 3D structures based on their inherently active microcavities and externally passive microcavities of the perovskites. First, the fundamental properties in terms of crystal structure and optical characteristics of perovskites are reviewed. Then the perovskite lasers are classified into two sections based on the morphology features: the ability/inability to support lasing behaviors by themselves. Every section is further divided into two kinds of cavities according to the light reflection paths (Standing wave for the Fabry–Pérot cavity and travelling wave for the Whispering-Gallery-Mode cavity). The lasing performance involves fabrication methods, cavity sizes, thresholds, quality factors, pumping sources, etc. Finally, some challenges and prospects for perovskite lasers are given.

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A Two‐Dimensional Ruddlesden–Popper Perovskite Nanowire Laser Array based on Ultrafast Light‐Harvesting Quantum Wells

Cited by 35 publications

References 27 publications

Lasing from Mechanically Exfoliated 2D Homologous Ruddlesden–Popper Perovskite Engineered by Inorganic Layer Thickness

Lasing from Mechanically Exfoliated 2D Homologous Ruddlesden–Popper Perovskite Engineered by Inorganic Layer Thickness

Recent Progress in Metal Halide Perovskite Micro‐ and Nanolasers

Advances in inorganic and hybrid perovskites for miniaturized lasers

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