Stable room-temperature continuous-wave lasing in quasi-2D perovskite films

Qin, Chuanjiang; Sandanayaka, Atula S. D.; Zhao, Chenyang; Matsushima, Toshinori; Zhang, Dezhong; Fujihara, Takashi; Adachi, Chihaya

doi:10.1038/s41586-020-2621-1

Cited by 454 publications

(518 citation statements)

References 27 publications

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“…The key consideration is that, in our crystal-fiber scheme, the thermal dissipation can be significantly improved by distributing the heat over a large crystal-fiber length endowed with intrinsically high thermal conductivity ( Figure S15, Supporting Information). Consequently, Figure 3g undoubtedly highlights the thermal dissipation in our hybrid fiber configuration that is compatible to the state-of-the-art quasi-2D form, [33] as proven even after 3 h of operation, which is far superior to the MAPbI 3 and FAPbI 3 perovskites that are reported so far. [34] Note also that the CW laser experiment was fully conducted at RT in 50-60% relative humidity ambient conditions.…”

supporting

confidence: 67%

Ultralow‐Threshold Continuous‐Wave Room‐Temperature Crystal‐Fiber/Nanoperovskite Hybrid Lasers for All‐Optical Photonic Integration

Nguyen

Sun

et al. 2021

Advanced Materials

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integrated perovskite light source in a compact fiber scheme, in which smaller is better, is highly desirable for all-optical onchip interconnects. Most of the reported perovskite lasers have so far been experimentally demonstrated either with pulse excitations or as ultrafast lasers. They have the shortcomings of significant complexity, high cost, and complicated setup (Table S1, Supporting Information), which do not meet the criteria of green energy. Ultrafast pulse pumping also implies that the system is larger than existing fiber devices, requires more hands-on maintenance, and is less reliable, thus increasing the complexity of integration with silicon microelectronics. Recently, a leading-edge 5 nm complementary metal oxide-semiconductor platform was demonstrated by Taiwan Semiconductor Manufacturing Company with a large production batch. [2] This success is expected to be extended to all-fiber photonic integration, thus realizing continuous-wave (CW) perovskite lasers in a fiber configuration is imperative. Despite the vigorous pace in the realization of CW perovskite lasers, the operating temperatures of these lasers have been impractically low, at the cryogenic temperature of 102 K, or at 77 or Continuous-wave (CW) room-temperature (RT) laser operation with low energy consumption is an ultimate goal for electrically driven lasers. A monolithically integrated perovskite laser in a chip-level fiber scheme is ideal. However, because of the well-recognized air and thermal instabilities of perovskites, laser action in a perovskite has mostly been limited to either pulsed or cryogenic-temperature operations. Most CW laser operations at RT have had poor durability. Here, crystal fibers that have robust and high-heatload nature are shown to be the key to enabling the first demonstration of ultralow-threshold CW RT laser action in a compact, monolithic, and inexpensive crystal fiber/nanoperovskite hybrid architecture that is directly pumped with a 405 nm diode laser. Purcell-enhanced light-matter coupling between the atomically smooth fiber microcavity and the perovskite nanocrystallites gain medium enables a high Q (≈1500) and a high β (0.31). This 762 nm laser outperforms previously reported structures with a record-low threshold of 132 nW and an optical-to-optical slope conversion efficiency of 2.93%, and it delivers a stable output for CW and RT operation. These results represent a significant advancement toward monolithic all-optical integration. Green energy and on-chip photonics have been two of the fastest growing fields in science and technology over the last decade. Metal-halide perovskites and fiber-based devices are both integral to the development of next-generation energy materials and all-optical photonic circuits. [1] A monolithically The ORCID identification number(s) for the author(s) of this article can be found under

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supporting

confidence: 67%

Ultralow‐Threshold Continuous‐Wave Room‐Temperature Crystal‐Fiber/Nanoperovskite Hybrid Lasers for All‐Optical Photonic Integration

Nguyen

Sun

et al. 2021

Advanced Materials

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“…achieved stable green lasers from quasi‐2D perovskite under continuous wave (CW) optical pumping in air at room temperature using a distributed‐feedback cavity with a high‐quality factor. [ 36 ]…”

Section: Introductionmentioning

confidence: 99%

Photophysics of 2D Organic–Inorganic Hybrid Lead Halide Perovskites: Progress, Debates, and Challenges

et al. 2021

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2D organic–inorganic hybrid Ruddlesden–Popper perovskites (RPPs) have recently attracted increasing attention due to their excellent environmental stability, high degree of electronic tunability, and natural multiquantum‐well structures. Although there is a rapid development of photoelectronic applications in solar cells, photodetectors, light emitting diodes (LEDs), and lasers based on 2D RPPs, the state‐of‐the‐art performance is far inferior to that of the existing devices because of the limited understanding on fundamental physics, especially special photophysics in carrier dynamics, excitonic fine structures, excitonic quasiparticles, and spin‐related effect. Thus, there is still plenty of room to improve the performances of photoelectronic devices based on 2D RPPs by enhancing knowledge on fundamental photophysics. This review highlights the special photophysics of 2D RPPs that is fundamentally different from the conventional 3D congeners. It also provides the most recent progress, debates, challenges, prospects, and in‐depth understanding of photophysics in 2D perovskites, which is significant for not only boosting performance of solar cells, LEDs, photodetectors, but also future development of applications in lasers, spintronics, quantum information, and integrated photonic chips.

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“…In recent years, organic semiconductor laser diodes (OSLDs) have been intensively researched in terms of materials development, mechanism investigation, and device optimization. [ 1–11 ] OSLDs benefit from advantages such as wavelength tunability, mechanical flexibility, and simple fabrication processes compared with conventional inorganic semiconductor lasers, and therefore show great promise in future optoelectronics. Although the first demonstration of a blue OSLD under current excitation was reported based on a blue laser material known as 4,4′‐bis([ N ‐carbazole]styryl)biphenyl, [ 12 ] the development of OSLDs that cover the full color range is highly demanded to expand the possibilities of their applications.…”

Section: Figurementioning

confidence: 99%

Realizing Near‐Infrared Laser Dyes through a Shift in Excited‐State Absorption

Aoki

Komatsu

Goushi

et al. 2021

Advanced Optical Materials

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The development of near‐infrared (NIR) light sources has attracted much interest due to their attractive applications, such as biosensing and light detection and ranging (LiDAR). In particular, organic semiconductor laser diodes with NIR emission are emerging as a next generation technology. However, organic NIR emitters have generally suffered from a low quantum yield, which has resulted in only a few examples of organic solid‐state NIR lasers. In this study, the authors demonstrate a highly efficient NIR emitter based on a boron difluoride curcuminoid structure, which shows a high photoluminescence (PL) quantum yield (ΦPL) at >700 nm and a high fluorescence radiative rate constant in a solid‐state film. Amplified spontaneous emission and lasing occurs at >800 nm with very low thresholds. The large redshift of the stimulated emission is attributed to the transition from the lowest excited state to the different vibrational levels of the ground state owing to the overlap between the emission and the singlet–singlet excited‐state absorption.

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Stable room-temperature continuous-wave lasing in quasi-2D perovskite films

Cited by 454 publications

References 27 publications

Ultralow‐Threshold Continuous‐Wave Room‐Temperature Crystal‐Fiber/Nanoperovskite Hybrid Lasers for All‐Optical Photonic Integration

Ultralow‐Threshold Continuous‐Wave Room‐Temperature Crystal‐Fiber/Nanoperovskite Hybrid Lasers for All‐Optical Photonic Integration

Photophysics of 2D Organic–Inorganic Hybrid Lead Halide Perovskites: Progress, Debates, and Challenges

Realizing Near‐Infrared Laser Dyes through a Shift in Excited‐State Absorption

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