The integration structure enhances performance of perovskite solar cells

Zeng, Qiang; Meng, Xianghe; Fang, Zhimin; Cheng, Ming; Yang, Shangfeng; Yuan, Yongbo; Cheng, Yuanhang; Jin, Zhiwen; Bao, Qinye; Liu, Fangyang; Hao, Feng; Ding, Liming

doi:10.1016/j.scib.2020.10.013

Cited by 3 publications

(1 citation statement)

References 49 publications

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“…Three-dimensional (3D) organic–inorganic hybrid halide perovskites have been studied for their promising applications in solar cells, − photodetectors, − and related optoelectronic devices − due to their superior photophysical properties, including extremely high optical absorption, high external quantum efficiency, small effective masses of electrons and holes, low charge-carrier recombination rates, long carrier lifetime, and long diffusion length. , Two-dimensional Ruddlesden–Popper perovskites (2D RPPs) are formally specific slices of the 3D counterparts into well-defined slabs by large-size or long-chain organic cations, e.g ., butylammonium C 4 H 9 NH 3 + (BA) and phenethylammonium C 6 H 5 CH 2 CH 2 NH 3 + (PEA). 2D RPPs have been increasingly attracting attention as one of the most favorable materials within the portfolio of perovskites due to their higher tunability of the photophysical properties and enhanced light stability and environmental stability relative to MAPbI 3 .…”

Section: Introductionmentioning

confidence: 99%

Spatiodynamics, Photodynamics, and Their Correlation in Hybrid Perovskites

Lyu

Zheng

et al. 2021

Chem. Mater.

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The motion of organic cations and its possible correlation with excited-state photodynamics are important to the fundamental understanding of the superior performances of two-dimensional (2D) and three-dimensional (3D) hybrid lead-halide perovskites in optoelectronic applications. Herein, variable-temperature (VT) solid-state 1H and 13C CP (cross polarization) NMR spectroscopy without isotope enrichments, combined with VT powder X-ray diffraction (XRD), differential scanning calorimetry (DSC), and time-resolved photoluminescence (TRPL), was employed to study the phase transition, local structure, motion dynamics, and photodynamic behaviors of organic cations in hybrid 2D Ruddlesden–Popper perovskites (RPPs) (BA)2(MA) n−1Pb n I3n+1 (BA denotes butylammonium and MA denotes methylammonium). Two types of BA conformations in various crystalline phases of 2D RPPs and conformational transition associated with phase transition were clearly revealed. Quantitative NMR analyses suggest that the rotation dynamics of MA in 2D RPPs are comparable to that of MA in 3D MAPbI3. A surprising linear relationship was discovered between the estimated activation energy of the MA rotation and the logarithm of photoluminescence (PL) lifetimes (τ) of 2D RPPs and MAPbI3, strongly supporting the presence of coupling between the cation spatial dynamics and the excited-state photodynamic behaviors.

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Section: Introductionmentioning

confidence: 99%

Spatiodynamics, Photodynamics, and Their Correlation in Hybrid Perovskites

Lyu

Zheng

et al. 2021

Chem. Mater.

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Modification of perovskite/HTL interface with cooperative polymers bilayer (PTB7-Th/P3HT) to improve perovskite solar cell efficiency and stability

Ruíz-Sánchez¹,

Moreno-Romero

Abrego-Martínez

et al. 2023

Materials Science in Semiconductor Processing

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Intensification of the process of ergosterol accumulation by yeast Saccharomyces cerevisiae by changing the composition of the culture medium and using ultrasound

Stepanova,

Kalinina,

Fatkullin

et al. 2024

BIO Web Conf.

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The chemical synthesis of vitamin D2, an important nutrient for living organisms, is complex due to the asymmetric structure of the vitamin molecule. This opens up significant prospects for the development of biotechnological approaches to cyanocobalamin synthesis, which forms the basis of this work. The study considers the possibility of using nutrient media of different compositions, as well as ultrasound exposure to intensify the biosynthesis of ergosterol by yeast Saccharomyces cerevisiae as a precursor of vitamin D2. The standard YEPD medium is considered as a nutrient medium, as well as low-carb and sodium nitrate dilution. The modes of ultrasonic exposure varied in power and processing time, 9 variants were evaluated. Together, the intensification of the process of ergosterol biosynthesis by yeast cells can ensure the economic viability, stability, and expediency of its production on an industrial scale. The research results have shown the expediency of the proposed approaches. Thus, the introduction of sodium nitrate into the nutrient medium allowed for an increase in synthesized ergosterol in the yeast biomass by 18.2% compared with the standard medium. Optimization of ultrasonic treatment modes has shown the possibility of achieving the synthesis of ergosterol to a content of 11.82% per dry matter.

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The integration structure enhances performance of perovskite solar cells

Cited by 3 publications

References 49 publications

Spatiodynamics, Photodynamics, and Their Correlation in Hybrid Perovskites

Spatiodynamics, Photodynamics, and Their Correlation in Hybrid Perovskites

Modification of perovskite/HTL interface with cooperative polymers bilayer (PTB7-Th/P3HT) to improve perovskite solar cell efficiency and stability

Intensification of the process of ergosterol accumulation by yeast Saccharomyces cerevisiae by changing the composition of the culture medium and using ultrasound

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