Low-temperature-gradient crystallization for multi-inch high-quality perovskite single crystals for record performance photodetectors

Liu, Yucheng; Zhang, Yunxia; Yang, Zhou; Feng, Jiangshan; Xu, Zhuo; Li, Qingxian; Hu, Mingxin; Ye, Haochen; Zhang, Xu; Liu, Ming; Zhao, Kui; Liu, Shengzhong

doi:10.1016/j.mattod.2018.04.002

Cited by 234 publications

(282 citation statements)

References 51 publications

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“…Therefore, we calculated the n trap as low as 8.7 × 10 9 cm −3 , which is comparable to the values in high-quality 3D perovskite single crystals. [2,21,26] Band structure of the BDAPbI 4 was further calculated based on the density functional theory (DFT), with the result displayed in Figure 2b. In the absence of the spin-orbit coupling (SOC) effect, the BDAPbI 4 has a direct bandgap of 2.16 eV.…”

Section: (3 Of 9)mentioning

confidence: 99%

2D Perovskite Single Crystals with Suppressed Ion Migration for High‐Performance Planar‐Type Photodetectors

Zhang

Liu

et al. 2020

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Abstract2D Dion–Jacobson (DJ) perovskites have recently drawn much attention owing to their superior charge transport and high environmental stability. Unfortunately, their intrinsic optoelectronic properties are largely unexplored due to the lack of high‐quality single crystals available for accurate measurements. Herein, a reactive, low‐temperature‐gradient crystallization process to grow high‐quality 2D perovskite single crystal (BDAPbI4) using symmetric straight chain 1,4‐butanediammonium as a short‐chain insulating spacer is developed. It is found that the BDAPbI4 single crystal exhibits a direct bandgap with effective charge collection (μτ = 1.45 × 10−3 cm2 V−1). In particular, the BDAPbI4 single crystal shows a high ion migration activation energy (0.88 eV) that is desired for stability. Moreover, the planar‐type photodetectors made of BDAPbI4 single crystals demonstrate excellent photoresponse performance, including large dynamic linear range (150 dB), high responsivity (927 mA W−1), fast response speed, and exceptional stability. Theoretical calculations reveal that the enhanced carrier transport properties are mainly attributed to the interlayer‐induced coupling of the inorganic layers. Furthermore, the rigid structure of BDAPbI4, resulting from the strong hydrogen bonds between the organic cations and the inorganic framework, will result in both low defect density and low ion migration, leading to superior carrier transport properties and detection performance.

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Section: (3 Of 9)mentioning

confidence: 99%

2D Perovskite Single Crystals with Suppressed Ion Migration for High‐Performance Planar‐Type Photodetectors

Zhang

Liu

et al. 2020

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“…Frank Liu et al have reported the The considered methods involve exploring new perovskite materials, using more appropriate additives, and fabricating single crystal perovskite solar cells. It is notable that according to experimental reports, enhanced crystallization and reducing the dimension of perovskite material can effectively improve the stability of perovskite film [5,36]. Frank Liu et al have reported the characteristic of single crystal and two dimension (2D) perovskite material in reference [36] and reference [37].…”

Section: State and Development Of Perovskite Filmmentioning

confidence: 99%

“…It is notable that according to experimental reports, enhanced crystallization and reducing the dimension of perovskite material can effectively improve the stability of perovskite film [5,36]. Frank Liu et al have reported the characteristic of single crystal and two dimension (2D) perovskite material in reference [36] and reference [37]. Owing to NH 3…”

Section: State and Development Of Perovskite Filmmentioning

confidence: 99%

Influence of Film Quality on Power Conversion Efficiency in Perovskite Solar Cells

et al. 2019

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Organic-inorganic perovskite solar cells (PSCs) are a high-efficiency, low-cost form of solar technology because of the abundance of useful materials and a simple fabrication procedure relative to other photovoltaic devices. Furthermore, the perovskite material shows decent electron and hole mobilities, a wide absorption range, and long exciton diffusion length. So far, many groups have focused on the research of perovskite thin-film solar cells, and these perovskite solar cells have been deemed to be one of the leading next generation photovoltaic technologies. However, there are several problems that restrict the enhancement of perovskite solar cell performance such as their poor uniformity and low crystallinity. Herein we summarize and discuss the role of film quality on power conversion efficiency, and effect of fabrication condition on the light absorbance of perovskite film.

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“…The value of ωΓN 0 depends on the supersaturation of the solution. When temperature is the main regulating factor of single crystal growth, the influence of the exponential part on the rate is dominant, and the influence of the nonexponential part can be ignored as a constant 86, 87 . As the crystal grows, the exponential part changes with temperature.…”

Section: Methods Of 2d Perovskite Crystallizationmentioning

confidence: 99%

Recent progress of two‐dimensional lead halide perovskite single crystals: Crystal growth, physical properties, and device applications

Chang

Liu

2020

EcoMat

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In recent years, research on organic‐inorganic lead halide two‐dimensional (2D) perovskites has been blossoming. 2D perovskites have completely different layered structures from three‐dimensional perovskites, with interleaved organic and inorganic layers, leading to 2D perovskite materials being more stable and possessing anisotropic electrical transport. Meanwhile, 2D organic‐inorganic lead halide perovskite single crystals are receiving increasing attention because of their remarkable properties, such as long charge carrier lifetime, low defect density, and high photoluminescence quantum yield, increasing their potential for optoelectronic applications. Previously, a series of material systems based 2D perovskites single crystals has been synthesized and applied in various device applications. In this review, the preparation methods of organic‐inorganic lead halide 2D perovskite single crystals, the growth principles, their photoelectric properties and several device applications are discussed.

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Low-temperature-gradient crystallization for multi-inch high-quality perovskite single crystals for record performance photodetectors

Cited by 234 publications

References 51 publications

2D Perovskite Single Crystals with Suppressed Ion Migration for High‐Performance Planar‐Type Photodetectors

2D Perovskite Single Crystals with Suppressed Ion Migration for High‐Performance Planar‐Type Photodetectors

Influence of Film Quality on Power Conversion Efficiency in Perovskite Solar Cells

Recent progress of two‐dimensional lead halide perovskite single crystals: Crystal growth, physical properties, and device applications

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