Advances in metal halide perovskite lasers: synthetic strategies, morphology control, and lasing emission

Hu, Zhiping; Liu, Zhengzheng; Zhan, Zijun; Shi, Tongchao; Du, Juan; Tang, Xiaosheng; Leng, Yuxin

doi:10.1117/1.ap.3.3.034002

Cited by 64 publications

(55 citation statements)

References 186 publications

(286 reference statements)

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“…[40][41][42] It is well known that the phase distribution and morphology of quasi-2D RPPs strongly affect the charge carrier dynamics and the ASE performance, and the anti-solvent method is widely used for forming highly homogenous, pinhole-free perovskite films readily and providing morphology control. [43,44] Herein, chlorobenzene (CB) is dropped on the perovskite film as an anti-solvent to promote the crystallization of the quasi-2D RPPs by accelerating the formation of the perovskite nuclei. Figure 2c shows the pump-intensity dependence of the emission from the composition ⟨5⟩ perovskite film with CB treatment.…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

Amplified Spontaneous Emission with a Low Threshold from Quasi‐2D Perovskite Films via Phase Engineering and Surface Passivation

Zhang

Chu

et al. 2022

Advanced Optical Materials

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photoluminescence quantum yield, large exciton binding energy, high optical gain coefficients, and bandgap tunability. [5][6][7][8][9][10][11] Especially, the tailorable emission wavelength of perovskites is highly appealing for overcoming the so-called green gap problem in nitride-based LEDs and lasers. Since the first demonstration of amplified spontaneous emission (ASE) phenomenon of perovskites at room temperature in 2014, [5] lasering behavior has been extensively investigated for perovskite-based gain mediums combined with various optical feedback structures. [12][13][14] However, the key challenge in the practical application of 3D-perovskite is the well-known long-term instability of devices owing to atmospheric moisture and halide ion migration. [15] Recently, the solution-processed quasi-2DRuddlesden-Popper perovskites (RPPs) have been investigated as attractive alternatives to 3D-perovskites for laser applications because of their inherent stability. [16][17][18][19] The quasi-2D RPPs can be described by the chemical formula L 2 A n−1 Pb n X 3n+1 , where L represents large organic spacers such as phenylethylammonium (PEA), n-butylammonium (BA), and naphthylmethylammonium (NMA), A is a small organic cation of methylammonium (MA + ), formamidinium (FA + ), or inorganic cation of Cs + , X is a halide anion (Cl − , Br − , I − ), and n represents the number of PbX 6 octahedral layers within each period. [16] Actually, both ASE [20][21][22][23] and lasing behaviors have been widely demonstrated in the quasi-2D RPP films with whispering-gallery-mode, [24,25] Fabry-Pérot, [26,27] distributed feedback (DFB) [18,28,29] and distributed Bragg reflector [30] cavities at room temperatures. The hydrophobic bulky organic layers of cation L can suppress ion migration and prevent moisture penetration, thus imparting quasi-2D perovskites with excellent environmental and operating stability. [31][32][33][34] Indeed, it was reported that the ASE intensity maintained almost the same after excitation under continuous pulsed laser for 32 h at ambient conditions. [20] More importantly, because of dielectric constant difference between RPPs and organic layers, the excitons are confined within the [A n−1 Pb n X 3n+1 ] 2− layers, resulting in a large exciton binding energy up to hundreds of meV. [35] Furthermore, the quasi-2D RPP thin films typically consist of the mixed 2D/3D perovskite phases, naturally forming multi-quantum-well structures. Consequently, the photoexcited Solution-processed quasi-2D Ruddlesden-Popper perovskites are being considered as a promising optical gain medium in lasing applications, owing to their outstanding optoelectronic properties and inherent stability. However, the development of quasi-2D perovskites for lasers with low threshold and high optical gain is still lagging far behind 3D-perovskites. This work proposes an anti-solvent treatment strategy to regulate the phase components and surface morphology of quasi-2D PEA 2 (CsPbBr 3 ) n−1 PbBr 4 thin films. Furthermore, an additional poly(methyl meth...

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Section: Wwwadvopticalmatdementioning

confidence: 99%

Amplified Spontaneous Emission with a Low Threshold from Quasi‐2D Perovskite Films via Phase Engineering and Surface Passivation

Zhang

Chu

et al. 2022

Advanced Optical Materials

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“…[ 6,7 ] Besides, the investigation and the optimization of light‐pump threshold of these microlasers face great challenges, especially in reaching an ultralow pump fluence down to the level of tens of µJ cm −2 . [ 8,9 ] A lower threshold can provide more opportunities in choosing laser materials without considering the strong‐light damage, and also could create a higher external quantum efficiency of the laser. [ 10–12 ]…”

Section: Introductionmentioning

confidence: 99%

“…[6,7] Besides, the investigation and the optimization of light-pump threshold of these microlasers face great challenges, especially in reaching an ultralow pump fluence down to the level of tens of µJ cm −2 . [8,9] A lower threshold can provide more opportunities in choosing laser materials without considering the strong-light damage, and also could create a higher external quantum efficiency of the laser. [10][11][12] Surface plasmon is the collective oscillation of free electrons in noble metal nanostructures, which breaks the diffraction limit through harvesting far-field light energy into near-field electromagnetic (EM) field.…”

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confidence: 99%

Low Thresholds and Tunable Modes in Plasmon‐Assisted Perovskite Microlasers

Wang

Xie

et al. 2022

Advanced Optical Materials

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However, their mode volumes and high-quality (Q) factors are restricted to the optical diffraction limit in their dielectric media. [6,7] Besides, the investigation and the optimization of light-pump threshold of these microlasers face great challenges, especially in reaching an ultralow pump fluence down to the level of tens of µJ cm −2 . [8,9] A lower threshold can provide more opportunities in choosing laser materials without considering the strong-light damage, and also could create a higher external quantum efficiency of the laser. [10][11][12] Surface plasmon is the collective oscillation of free electrons in noble metal nanostructures, which breaks the diffraction limit through harvesting far-field light energy into near-field electromagnetic (EM) field. [13,14] The plasmonic nanostructures hold natural features in exhibiting ultrasmall mode volume, which enables the modulation of strong light-matter interactions and the creation of ultralow threshold for the application of designing microlasers. [15][16][17] Plasmonic nano/ microlasers have been achieved in a series of compound semiconductors and low-dimensional semiconductors, such as GaN, ZnO, CdS, and WS 2 . [18][19][20][21][22] But the harsh fabrication condition and the unsatisfied threshold are still in urgent to be improved, which may place hope in exploiting a new material family.Recently, perovskites have emerged as promising optical gain materials for achieving ultralow-threshold microlasers, owing to their excellent optical properties, such as large absorption coefficient, high photoluminescence (PL) quantum yield, and low non-radiative recombination rate. [23][24][25] By interacting with plasmonic nanostructures, lasing behaviors in perovskites have been reported to show attenuated threshold and high mode quality owing to plasmonic effects. [26][27][28] Previous works reported the preparation of plasmonic perovskite lasers by fabricating perovskite flakes or nanowires on dielectric/metal films, but they always exhibit multi-wavelength lasing peaks due to the complex cavity-modes of perovskites. [29][30][31] The investigation of pure single-mode and tunable modes in plasmonic perovskite microlasers with ultralow thresholds has rarely been reported so far, which may have a great significance in realizing future on-chip integration of nano/microlasers. [32] Here, we develop a chemical vapor deposition (CVD) method to fabricate CsPbBr 3 /Ag (hybrid) heterostructures for plasmonic microlasers with low lasing threshold. Ag nanowires Low-dimensional perovskite structures are ideal materials for nano/microlasers owing to their excellent optical gain properties and high emission efficiency. But it is still a challenge to achieve single-mode and tunable lasing behaviors in micro-scale perovskite, especially showing ultralow thresholds in tens of µJ cm −2 . In this work, CsPbBr 3 /Ag hemispheroids have been synthesized in a designed chemical vapor deposition (CVD) process. Benefiting from the whispering gallery resonance mode and plasmon-enhanced light-m...

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“…Metal halide perovskite-like materials with ABX 3 structure (A = Rb, Cs; B = Ge, Sn, Pb; X = Cl, Br, I) have been widely used in solar cells, 1–4 light-emitting diodes (LEDs), 5–8 photodetectors, 9–13 lasers 14–17 and other fields because of their excellent optical and electrical properties, low cost preparation, and simple solution processing, and thus have attracted widespread attention in recent years. 18 Compared to traditional semiconductor nanocrystals or nano-structured metal halide perovskite-like materials, all-inorganic lead halide perovskite-like materials (APbX 3 (X = Cl, Br, I)) have better optical properties, including photoluminescence effect and a narrow emission peak width.…”

Section: Introductionmentioning

confidence: 99%

A novel and facile synthesis strategy for highly stable cesium lead halide nanowires

et al. 2021

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Advances in metal halide perovskite lasers: synthetic strategies, morphology control, and lasing emission

Cited by 64 publications

References 186 publications

Amplified Spontaneous Emission with a Low Threshold from Quasi‐2D Perovskite Films via Phase Engineering and Surface Passivation

Amplified Spontaneous Emission with a Low Threshold from Quasi‐2D Perovskite Films via Phase Engineering and Surface Passivation

Low Thresholds and Tunable Modes in Plasmon‐Assisted Perovskite Microlasers

A novel and facile synthesis strategy for highly stable cesium lead halide nanowires

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