A general printing approach for scalable growth of perovskite single-crystal films

Gu, Zhenkun; Huang, Zhandong; Li, Chang; Li, Mingzhu; Song, Yanlin

doi:10.1126/sciadv.aat2390

Cited by 175 publications

(172 citation statements)

References 39 publications

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“…Apart from continuous thin films, single‐crystal perovskite arrayed films are also appealing for many optoelectronic applications, such as luminous pixel matrices in panel displays, and photodetector microarrays in camera modules . Gu et al introduced an ordered‐perovskite seed stamp into the space‐confined solvent evaporation crystallization process, which significantly inhibited random nucleation and enabled the scalable growth of various single‐crystal perovskite thin film arrays with millimeter‐sizes and controllable thicknesses from hundreds of nanometers to more than 10 μm (Figure e). To prepare the perovskite seed array, perovskite inks were inkjet printed onto a fluorosilane‐functionalized silicon wafer, and the ordered perovskite seeds were then formed as the droplets evaporated.…”

Section: Fabrication Methods For Perovskite Single‐crystal Thin Filmsmentioning

confidence: 99%

“…In addition, single‐crystal MAPbI 3 photodetectors with a similar structure were also fabricated, and led to a similar performance . Of particular note is that massive photodetector arrays on large‐area single‐crystal perovskite wafers have promising potential applications as image sensors, as demonstrated by Gu et al (Figure e–h).…”

Section: Applications Of Single‐crystal Perovskite Thin Filmsmentioning

confidence: 99%

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Recent Advances in Halide Perovskite Single‐Crystal Thin Films: Fabrication Methods and Optoelectronic Applications

et al. 2019

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Metal‐halide perovskites have aroused intense interest in the scientific community by virtue of their numerous remarkable optoelectronic properties, which render them promising candidates for applications in various optoelectronic fields, such as solar cells, light‐emitting diodes, photodetectors, and lasers. Compared with perovskite polycrystalline films and nanocrystals, grain‐boundary‐free single‐crystal perovskites possess lower trap‐state densities, higher carrier mobilities, and longer diffusion lengths, which are supposed to deliver superior optoelectronic performance. However, the thickness (a few millimeters) of typical bulk single‐crystal perovskites are much greater than their carrier diffusion length (e.g., MAPbI3 SC, ≈175 µm), which results in severe charge accumulation and significantly hinders their development. To this end, fabricating single‐crystal thin films is of great importance for further exploring the potential of single‐crystal perovskites in various applications. In this paper, the rapid and prosperous developments in the fabrication methods of perovskite single‐crystal thin films are systematically summarized and recent encouraging progress in their physical and chemical properties as well as the optoelectronic applications (solar cells, photodetectors, and light‐emitting diodes) of single‐crystal thin films are reviewed. Finally, the challenges and a brief outlook for further improving the quality of perovskite single‐crystal thin films and optimizing the device design are highlighted.

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Section: Fabrication Methods For Perovskite Single‐crystal Thin Filmsmentioning

confidence: 99%

Section: Applications Of Single‐crystal Perovskite Thin Filmsmentioning

confidence: 99%

Recent Advances in Halide Perovskite Single‐Crystal Thin Films: Fabrication Methods and Optoelectronic Applications

et al. 2019

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“…To selectively grow CsPbBr 3 microplate arrays in the vapor phase, we first fabricated CsPbBr 3 seeds on silicon using our previously reported inkjet printing method. [ 24 ] Inkjet printing technology is a facile method that can selectively deposit traces of semiconductor materials in large scale. [ 25,26 ] Consequently, a dilute perovskite precursor solution was printed on a silicon wafer to prepare the CsPbBr 3 seeds with the desired patterns.…”

Section: Figurementioning

confidence: 99%

Controllable Growth of High‐Quality Inorganic Perovskite Microplate Arrays for Functional Optoelectronics

Zhou

Huang

et al. 2020

Advanced Materials

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CsPbX 3 single crystals for constructing high-performance integrated electronic and optoelectronic systems. [15][16][17] However, because of lattice mismatch and random nucleation, [18,19] it is difficult to grow arrays of CsPbX 3 microcrystals in the vapor phase with uniform morphology as well as controlled location and size. For example, lattice mismatch results in diverse crystal morphologies and large densities of crystalline defects, including stacking faults, screw dislocations, and crystal boundaries. [20,21] Random nucleation is a disadvantage in the precise control of crystal locations for device integration. [22,23] Hence, the controllable growth of highquality perovskite single crystals for a device is highly challenging. This significantly hinders the controllable production of high-performance perovskite singlecrystal devices in arrays for integrated electronic and optoelectronic systems. Herein, we report an effective strategy to control the vaporphase growth of high-quality cesium lead bromide perovskite (CsPbBr 3 ) microplate arrays with uniform morphology as well as controllable location and size. By introducing CsPbBr 3 seeds on substrates, intractable lattice mismatches and random nucleation barriers are surpassed, and the epitaxial growth of CsPbBr 3 crystals is accurately controlled. In contrast to conventional vapor-phase growth methods, the as-prepared CsPbBr 3 single crystals can be selectively grown with uniform morphology as well as controlled location and size. Optical and electronic characterizations demonstrate that the CsPbBr 3 microplates exhibit a lower trap density and an enhancement in carrier lifetime exceeding 300% compared with those of conventional methods. The CsPbBr 3 microplate arrays were monolithically grown on silicon, demonstrating excellent lasing performance with the highest quality factor (Q factor) of ≈6806 and the narrowest full-width at half-maximum (FWHM) of ≈0.08 nm, which is the best laser performance among the reported perovskite singlecrystal arrays. Furthermore, the CsPbBr 3 microplate array was directly grown on a quartz glass for the scalable fabrication of high-performance photodetectors. This strategy allows the growth of high-quality CsPbBr 3 microplates with controllable size and location, thereby providing new opportunities for the construction of high-performance optoelectronic devices.To selectively grow CsPbBr 3 microplate arrays in the vapor phase, we first fabricated CsPbBr 3 seeds on silicon using our Inorganic perovskite single crystals have emerged as promising vapor-phase processable structures for optoelectronic devices. However, because of material lattice mismatch and uncontrolled nucleation, vapor-phase methods have been restricted to random distribution of single crystals that are difficult to perform for integrated device arrays. Herein, an effective strategy to control the vapor-phase growth of high-quality cesium lead bromide perovskite (CsPbBr 3 ) microplate arrays with uniform morphology as well as controlled location and size is r...

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“…However, chemical solution methods process with imperfect surface coverage and pinholes generated in large-area perovskite thin films fabrication, which seriously influences the solar cell's stability and efficiency [13][14][15][16]. Gu et al [17] reported a facile seed printing method to produce a millimeter-scale perovskite single crystal film with controlled thickness and high yield through a printing process. This further proves that the perovskite single crystal film can be directly printed.…”

Section: Introductionmentioning

confidence: 99%

Highly Uniform Large-Area (100 cm2) Perovskite CH3NH3PbI3 Thin-Films Prepared by Single-Source Thermal Evaporation

et al. 2018

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Abstract:In this work, we report the reproducible preparation method of highly uniform large-area perovskite CH 3 NH 3 PbI 3 thin films by scalable single-source thermal evaporation with the area of 100 cm 2 . The microstructural and optical properties of large-area CH 3 NH 3 PbI 3 thin films were investigated. The dense, uniform, smooth, high crystallinity of large-area perovskite thin film was obtained. The element ratio of Pb/I was close to the ideal stoichiometric ratio of CH 3 NH 3 PbI 3 thin film. These films show a favorable bandgap of 1.58 eV, long and balanced carrier-diffusion lengths. The CH 3 NH 3 PbI 3 thin film perovskite solar cell shows a stable efficiency of 7.73% with almost no hysteresis, indicating a single-source thermal evaporation that is suitable for a large area perovskite solar cell.

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A general printing approach for scalable growth of perovskite single-crystal films

Abstract: A seed printing method is developed for controllably producing perovskite single-crystal films with high yield.

Cited by 175 publications

References 39 publications

Recent Advances in Halide Perovskite Single‐Crystal Thin Films: Fabrication Methods and Optoelectronic Applications

Recent Advances in Halide Perovskite Single‐Crystal Thin Films: Fabrication Methods and Optoelectronic Applications

Controllable Growth of High‐Quality Inorganic Perovskite Microplate Arrays for Functional Optoelectronics

Highly Uniform Large-Area (100 cm2) Perovskite CH3NH3PbI3 Thin-Films Prepared by Single-Source Thermal Evaporation

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