Nanoimprinted perovskite metasurface for enhanced photoluminescence

Wang, Honglei; Liu, Shih‐Chia; Balachandran, Balasubramaniam; Moon, Jiyoung; Haroldson, Ross; Li, Zhitong; Ishteev, A.; Gu, Qing; Zhou, Weidong; Zakhidov, Anvar A.; Hu, Wenchuang

doi:10.1364/oe.25.0a1162

Cited by 36 publications

(34 citation statements)

References 36 publications

(41 reference statements)

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“…In addition, nanoimprinted metasurface has been introduced to the perovskite film to enhance the PL emission. [ 123,130,131 ] Soci and co‐workers demonstrated the first tunable‐color MAPbI 3 perovskite metasurface composed of nanogratings (nanostripes) and nanoslits implemented by FIB fabrication techniques. [ 130 ] Upon above bandgap excitation, threefold PL enhancement as well as fourfold reduction in PL lifetime have been observed in perovskite nanostripes compared with the flat film, which has been ascribed to the Purcell effect.…”

Section: Nanostructured‐perovskite‐based Novel Device Applicationsmentioning

confidence: 99%

Micro‐ and Nanostructured Lead Halide Perovskites: From Materials to Integrations and Devices

Wang

Xing²,

Song

et al. 2020

Advanced Materials

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In the past decade, lead halide perovskites have been intensively explored due to their promising future in photovoltaics. Owing to their remarkable material properties such as solution processability, nice defect tolerance, broad bandgap tunability, high quantum yields, large refractive index, and strong nonlinear effects, this family of materials has also shown advantages in many other optoelectronic devices including microlasers, photodetectors, waveguides, and metasurfaces. Very recently, the stability of perovskite devices has been improved with the optimization of synthesis methods and device architectures. It is widely accepted that it is the time to integrate all the perovskite devices into a real system. However, for integrated photonic circuits, the shapes and distributions of chemically synthesized perovskites are quite random and not suitable for integration. Consequently, controlled synthesis and the top‐down fabrication process are highly desirable to break the barriers. Herein, the developments of patterning and integration techniques for halide perovskites, as well as the structure/function relationships, are systematically reviewed. The recent progress in the study of optical responses originating from nanostructured perovskites is also presented. Lastly, the challenges and perspective for nanostructured‐perovskite devices are discussed.

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Section: Nanostructured‐perovskite‐based Novel Device Applicationsmentioning

confidence: 99%

Micro‐ and Nanostructured Lead Halide Perovskites: From Materials to Integrations and Devices

Wang

Xing²,

Song

et al. 2020

Advanced Materials

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“…[ 52–55 ] Hu and co‐workers demonstrated the improvement of crystallinity and decrease of surface roughness of the organometal halide perovskite thin films due to the recrystallization after thermal imprinting. [ 56,57 ] Moreover, the absorption and PL intensity of the imprinted perovskite films can be greatly enhanced because of the constructed metasurfaces. [ 22 ] Another group also proposed the advantages of the thermal imprinting strategy on decreasing surface defects and demonstrated its feasibility on inorganic halide perovskite thin films.…”

Section: Perovskite Patterning Technologiesmentioning

confidence: 99%

Metal Halide Perovskites Functionalized by Patterning Technologies

Huang

Xiao

Dong

2020

Adv Materials Technologies

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Date back to the first introduction of organic-inorganic hybrid perovskites into solar cells in 2009, [5] the power conversion efficiencies (PCEs) have been greatly boosted from 3.8% to 25.2% (certified PCEs) during the past decade. [6] With the merits of excellent photoluminescence (PL) quantum yield, perovskite-based light-emitting diodes (LEDs) have achieved external quantum efficiency (EQE) exceeding 20% via defect passivation, structural modification, and surface engineering. [7-9] In addition to the prosperity in photovoltaic and light-emitting devices, tremendous efforts are carried on the MHPs pursuing ultra-low threshold laser, [10,11] and ultra-sensitive photo-and X-ray detectors. [12-14] Solution processing method is commonly used for fabricating perovskite thin films. This cost-effective method allows large-scale production of smooth and uniform perovskite thin films served as the active layers of solar cells. [15] However, it is difficult to grow specific nano/microcrystals with desired dimensions and positions to meet the requirement of integrated electronic and optoelectronic devices with compactness. Patterning technology is widely used in optoelectronic fields to improve device performance. Performing various patterning technologies on materials not only obtain aesthetic value but also generate specific functions through constructing ordered and well-designed structures. [16-19] Specific structures and periodic patterns endow materials with unique light-matter interaction which has great impacts on photovoltaic and optoelectronic devices. [20] Moreover, patterning technologies can construct highresolution patterns down to nanoscale resolution, which meets the requirement for displaying and anti-counterfeiting applications. Therefore, performing versatile patterning technologies on MHPs would not only improve their electronic and optical properties but also opens a new pathway for integrated electronic and optoelectronic systems with unique and novel functions. Here, an overview of the recent advances of patterning technology in the field of MHPs is presented (Figure 1). The patterning technologies were divided into two parts based on whether patterned templates are required. With the merits of patterning technologies, the patterned MHPs exhibited novel functions and enhanced performance in optical and optoelectronic applications, such as solar cells, photodetectors, laser, anti-counterfeiting, and full-color displays. Therefore, the relationship between the patterned structures and the MHPs device performance as well as the corresponding mechanisms are discussed in detail. Finally, a summary and some perspectives on the existing challenges of patterned MHPs are put forward. Metal halide perovskites (MHPs), as emerging stars, are greatly attracted due to their superior optical and optoelectrical properties. The design and construction of patterned materials have been considered as a powerful tool to improve the performance of optical and optoelectronic devices. Therefore, the marriage of MHPs and ...

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“…In Ref [11], Wang et al report the fabrication of perovskite metasurfaces by thermal nanoimprinting, and demonstrate an eight-fold enhancement of photoluminescence intensity from patterned films compared to planar films. The perovskite films that were subjected to imprinting exhibited improved morphology and crystallinity compared to as-deposited films.…”

Section: Summary Of Feature Issue Papersmentioning

confidence: 99%

“…Nine papers were accepted for publication: four in Optical Materials Express and five in Optics Express. These included one paper on material synthesis [8], two papers related to photophysical properties and recombination dynamics [9,10]; two papers on the topic of light emission and LEDs [7,11]; and four papers on lasers [6,[12][13][14]. While these papers cover only a very small selection of current perovskite research, they provide a flavor of the diverse range of topics and the exciting potential for perovskite optoelectronics.…”

Section: Introductionmentioning

confidence: 99%

Feature issue introduction: halide perovskites for optoelectronics

White¹,

Deleporte²,

Sum³

2018

Opt. Mater. Express

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This joint Optics Express and Optical Materials Express feature issue presents a collection of nine papers on the topic of halide perovskites for optoelectronics. Perovskite materials have attracted significant attention over the past four years, initially for their outstanding performance in thin film solar cells, but more recently for applications in lightemitting devices (LEDs and lasers), photodetectors and nonlinear optics. At the same time, there is still much more to learn about the fundamental properties of these materials, and how these depend on composition, processing, and exposure to the environment. This feature issue provides a snapshot of some of the latest research in this rapidly-evolving multidisciplinary field.

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Nanoimprinted perovskite metasurface for enhanced photoluminescence

Cited by 36 publications

References 36 publications

Micro‐ and Nanostructured Lead Halide Perovskites: From Materials to Integrations and Devices

Micro‐ and Nanostructured Lead Halide Perovskites: From Materials to Integrations and Devices

Metal Halide Perovskites Functionalized by Patterning Technologies

Feature issue introduction: halide perovskites for optoelectronics

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