Room-Temperature Near-Infrared High-Q Perovskite Whispering-Gallery Planar Nanolasers

Zhang, Qing; Ha, Son Tung; Liu, Xinfeng; Sum, Tze Chien; Xiong, Qihua

doi:10.1021/nl503057g

Cited by 750 publications

(788 citation statements)

References 29 publications

(63 reference statements)

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“…The inset shows a photograph of a converted chip 6 . e, an optical image of CH3NH3PbI3 platelets prepared by vapor phase synthesis 7 . f, SEM image of a SiO2 microsphere conformally coated with CH3NH3PbI3 via atomic layer deposition 8 .…”

Section: Discussionmentioning

confidence: 99%

Metal halide perovskites for energy applications

2016

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Exploring prospective materials for energy production and storage is one of the biggest challenges in this century. Solar energy is arguably the most important amongst various renewable energy resources, due to its wide availability and sustainability with lowest environmental impact. Metal halide perovskites have emerged as a class of semiconductor materials with unique properties including tuneable band gap, high absorption coefficient, broad absorption spectrum, high charge carrier mobility and long charge diffusion lengths, which enable a broad range of photovoltaic and optoelectronic applications. Since the first embodiment of perovskite solar cells showing a power conversion efficiency of 3.8%, the device performance has now been boosted up to a certified 21% within a few years. In this perspective, we summarize differing forms of perovskite materials produced via various deposition procedures, focusing on their energy related applications, and discuss current challenges and possible solutions, with the aim of stimulating potential new applications.

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Section: Discussionmentioning

confidence: 99%

Metal halide perovskites for energy applications

2016

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“…Therefore, HPVKs layers have been successfully applied in a wide range of photonic devices, such as photodetectors [91,92] or light emitting diodes [90,93]. In addition, since HPVKs present a fast carrier formation and long recombination time, they are promising materials to reduce the stimulated emission threshold in active devices [94][95][96][97][98][99][100][101][102][103][104][105][106][107][108][109], as it has been nicely reviewed in [90].…”

Section: -P14mentioning

confidence: 99%

“…Zhang et al synthetized triangular and hexagonal CH 3 NH 3 PbI 3 fabricated from PbI 2 nanoplatelets by a chemical vapor depositing technique (see Fig. 15d) [100]. The dimensions of the polygon were an edge length between 5 and 50 μm, a thickness of 20-300 nm wide and an angle between edges of 60 and 120 • , consistent with the perovskite lattice.…”

Section: -P14mentioning

confidence: 99%

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Suárez¹

2016

Eur. Phys. J. Appl. Phys.

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Abstract. Semiconductor nanocrystals have arisen as outstanding materials to develop a new generation of optoelectronic devices. Their fabrication under simple and low cost colloidal chemistry methods results in cheap nanostructures able to provide a wide range of optical functionalities. Their attractive optical properties include a high absorption cross section below the band gap, a high quantum yield emission at room temperature, or the capability of tuning the band-gap with the size or the base material. In addition, their solution process nature enables an easy integration on several substrates and photonic structures. As a consequence, these nanoparticles have been extensively proposed to develop several photonic applications, such as detection of light, optical gain, generation of light or sensing. This manuscript reviews the great effort undertaken by the scientific community to construct active photonic devices based on these nanoparticles. The conditions to demonstrate stimulated emission are carefully studied by comparing the dependence of the optical properties of the nanocrystals with their size, shape and composition. In addition, this paper describes the design of different photonic architectures (waveguides and cavities) to enhance the generation of photoluminescence, and hence to reduce the threshold of optical gain. Finally, semiconductor nanocrystals are compared to organometallic halide perovskites, as this novel material has emerged as an alternative to colloidal nanoparticles.

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“…These excellent properties, along with their high quantum yield and wavelength tunability, make halide perovskites ideal for light‐emission applications such as for light‐emitting diodes (LEDs), light‐emitting field‐effect transistors, and lasing 13, 14, 15, 16, 17, 18, 19. Since the first demonstration of ultrastable amplified spontaneous emission (ASE) with broad spectral tunability from perovskite thin films and lasing from perovskite crystals,20 perovskite lasing in a broad range of cavity structures, including microplatelets,21 nanowires,22 microspheres,23 and distributed Bragg reflection (DBR) mirrors,24 have been realized 25. Notably, Zhu et al recently reported a solution‐processed technique to synthesize single‐crystal perovskite nanowires and demonstrated their application on lasers with high‐quality factor and low lasing threshold 26.…”

Section: Introductionmentioning

confidence: 99%

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

et al. 2016

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Organic–inorganic metal halide perovskites have recently demonstrated outstanding efficiencies in photovoltaics as well as highly promising performances for a wide range of optoelectronic applications such as lasing, light emission, optical detectors, and even for radiation detection. Key to the realization of functional perovskite micro/nanosystems on the ubiquitous silicon optoelectronics platform is through sophisticated lithography. Despite the rapid progress made in halide perovskite lasing, direct lithographic patterning of perovskite films to form optical cavities on conventional substrates remains extremely challenging. This study realizes room‐temperature high‐quality factor whispering‐gallery‐mode lasing (Q ≈ 1210) from patterned lead halide perovskite microplatelets fabricated in periodic arrays on silicon substrate with micropatterned BN film as the buffer layer. By varying the size of the platelets, modal selectivity for single mode lasing can be achieved with different cavity sizes or by simply breaking the structural symmetry of the cavity through designing the pattern. Importantly, this work demonstrates a straightforward, versatile bottom‐up scalable strategy to realize high‐quality periodic perovskite arrays with variable cavity sizes for large‐area light‐emitting and optical gain applications.

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Room-Temperature Near-Infrared High-Q Perovskite Whispering-Gallery Planar Nanolasers

Cited by 750 publications

References 29 publications

Metal halide perovskites for energy applications

Metal halide perovskites for energy applications

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Periodic Organic–Inorganic Halide Perovskite Microplatelet Arrays on Silicon Substrates for Room‐Temperature Lasing

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