Review of Perovskite Micro -and Nano-Lasers

Sihao, 黄斯豪 Huang; Zhengzheng, 刘征征 Liu; Juan, 杜鹃 Du; Yuxin, 冷雨欣 Leng

doi:10.3788/lop57.071602

Cited by 2 publications

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“…CsPbBr 3 nanocrystals possess an easily tunable bandgap, which allows for the adjustment of their optical properties by altering their composition or size. This flexibility makes them suitable for a wide range of applications with different spectral requirements, such as photodetectors and lasers [23,[65][66][67]. CsPbBr 3 nanocrystals can be synthesized using simple and low-cost methods, such as hot injection and solvothermal techniques, making them an attractive option for scalable production [63,64,68].…”

Section: Introductionmentioning

confidence: 99%

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Liu

Lee

2023

Nanomaterials

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Over the past decade, perovskite technology has been increasingly applied in solar cells, nanocrystals, and light-emitting diodes (LEDs). Perovskite nanocrystals (PNCs) have attracted significant interest in the field of optoelectronics owing to their exceptional optoelectronic properties. Compared with other common nanocrystal materials, perovskite nanomaterials have many advantages, such as high absorption coefficients and tunable bandgaps. Owing to their rapid development in efficiency and huge potential, perovskite materials are considered the future of photovoltaics. Among different types of PNCs, CsPbBr3 perovskites exhibit several advantages. CsPbBr3 nanocrystals offer a combination of enhanced stability, high photoluminescence quantum yield, narrow emission bandwidth, tunable bandgap, and ease of synthesis, which distinguish them from other PNCs, and make them suitable for various applications in optoelectronics and photonics. However, PNCs also have some shortcomings: they are highly susceptible to degradation caused by environmental factors, such as moisture, oxygen, and light, which limits their long-term performance and hinders their practical applications. Recently, researchers have focused on improving the stability of PNCs, starting with the synthesis of nanocrystals and optimizing (i) the external encapsulation of crystals, (ii) ligands used for the separation and purification of nanocrystals, and (iii) initial synthesis methods or material doping. In this review, we discuss in detail the factors leading to instability in PNCs, introduce stability enhancement methods for mainly inorganic PNCs mentioned above, and provide a summary of these approaches.

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Section: Introductionmentioning

confidence: 99%

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Liu

Lee

2023

Nanomaterials

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Lead halide perovskites Fabry-Pérot resonant cavity laser

Xin-wei¹,

Lu²,

Ni³

2021

Acta Phys. Sin.

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With the advent of the post-Moore era, the demand for large-capacity and high-speed information processing has caused the application of semiconductor devices to shift from electronic integration to photonic integration. High-performance micro-nano lasers are an important part of achieving photonic integration. Varieties of semiconductor materials have promoted the rapid development of semiconductor micro-nano lasers. In recent years, with the advent of a large number of new semiconductor materials (such as two-dimensional semiconductors, lead halide perovskites, etc.), it is expected that the performances of semiconductor micro-nano lasers will be further improved. Perovskite materials have excellent optical properties such as high light absorptions, high defect tolerances, and large exciton binding energy, which <u>make</u> them excellent candidate materials for high-gain, low-threshold semiconductor micro-nano lasers. The Fabry-Perot (F-P) resonator laser is a type of perovskite laser with extensive research, simple structure and high application value. In this paper, we take lead halide perovskite F-P resonator laser for example, and summarize its working mechanism and recent research results, by starting from two aspects of photon laser with exciton and photon weak coupling and strong coupling polariton laser. And we introduce the lasing principle and influencing factors of F-P structure lasers with perovskite materials as both gain medium and resonant cavity and F-P cavity lasers with perovskite as only gain medium in detail. Finally, the current challenges of perovskite F-P resonant lasers are summarized, and the possible prospects of its further development are also presented.

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Review of Perovskite Micro -and Nano-Lasers

Cited by 2 publications

References 0 publications

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Advancements in Perovskite Nanocrystal Stability Enhancement: A Comprehensive Review

Lead halide perovskites Fabry-Pérot resonant cavity laser

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