Shuaishuai Shen

Macrocyclic Steric Confinement at Heavy‐Atom Sites to Suppress Spin‐Orbit Coupling for Room‐Temperature Spin Transport in Organic Semiconductors

Meng Wu, Xiangpeng Zhang, Shuaishuai Shen, Tingting Yang et autres

Electron spin transport in organic semiconductors (OSCs) at room temperature is fundamentally limited by an intrinsic trade-off between spin diffusion and spin relaxation, arising from spin-orbit coupling associated with heavy atoms in conjugated backbones. Here, we demonstrate that macrocyclic steric confinement at …

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Macrocyclic Steric Confinement at Heavy‐Atom Sites to Suppress Spin‐Orbit Coupling for Room‐Temperature Spin Transport in Organic Semiconductors

Meng Wu, Xiangpeng Zhang, Shuaishuai Shen, Tingting Yang et autres

ABSTRACT Electron spin transport in organic semiconductors (OSCs) at room temperature is fundamentally limited by an intrinsic trade‐off between spin diffusion and spin relaxation, arising from spin‐orbit coupling associated with heavy atoms in conjugated backbones. Here, we demonstrate that macrocyclic steric confinement …

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Conformation twisting or planarization: Site-selective alkylation on π-bridge for macrocycle encapsulated tetrathiophene based non-fused ring electron acceptors

Yilin He, Jingjing Deng, Rongyue Zhang, Kexin Zhao et autres

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Attaining 19.12% solar cell efficiency for non-fused ring electron acceptors via multi-dimensional charge transport

Miao Li, Qianqian Zhu, Nan Wei, Yuanyuan Zhou et autres

Non-fused ring electron acceptors (NFREAs) exhibit substantial commercial application potential. Nevertheless, their subpar electron transport performance results in slightly low power conversion efficiencies (PCEs) of organic solar cells (OSCs). Herein, we put forward an innovative supramolecular side-chain-induced multi-dimensional charge transport strategy to …

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Noncovalent Macrocyclic Encapsulation via Terminal “Dynamic Locking” Enabling High-Performance Nonfused Ring Electron Acceptors

Yuanyuan Zhou, Qianqian Zhu, Nan Wei, Guangliu Ran et autres

Nonfused ring electron acceptors (NFREAs) have garnered significant attention recently; however, designing high-performance NFREAs remains challenging, where achieving an efficient charge transport channel via precisely controlling molecular packing and aggregation compactness is crucial. Herein, we proposed an innovative noncovalent macrocyclic encapsulation molecular …

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Macrocyclic Encapsulation-Driven Asymmetric Terthiophene Acceptors with Hierarchical Stacking and High “Unit Economy” for Efficient Organic Solar Cells

Kexin Zhao, Wen Ma, Shuaishuai Shen, Ningfang Zhang et autres

Nonfused ring electron acceptors (NFREAs) have emerged as promising candidates for high-efficiency organic solar cells, owing to their cost-effectiveness. Notably, the number of aromatic rings in their nonfused conjugated backbones plays a crucial role in determining optical and electronic properties, as well …

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High-Efficiency Quinoxaline-Based Nonfused Ring Electron Acceptors via Precisely Manipulating Noncovalent Interactions

Xingjie Wang, Qianqian Zhu, Yuanyuan Zhou, Shuaishuai Shen et autres

Quinoxaline (Qx) units, as a class of electron-deficient groups, have been widely incorporated into non-fullerene acceptors owing to their strong quinoid character and multiple substitution positions. In this work, three A-D-A′-D-A-type nonfused ring electron acceptors (NFREAs), namely, NAQx-1, NAQx-2, and NAQx-3, were …

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Size Effect of Steric Hindrance Groups on Non‐Fused Ring Electron Acceptors

Yuanyuan Zhou, Hailong Yue, Renshuang Wu, Shuaishuai Shen et autres

Three new non-fused ring electron acceptors (NFREAs), denoted as 4T-EH, 4T-PH, and 4T-2PH, are designed with 2-ethylhexyl, 4-hexylbenzyl, and bis(4-hexylphenyl)methyl substituents as side chains, respectively. From 4T-EH to 4T-PH, and 4T-2PH, the planarity of the molecular backbone is progressively enhanced, leading to …

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Comprehensive Quality Comparison of Camellia vietnamensis Seed Oil from Different Cultivars in Hainan Island

Shuao Xie, Zhao Jin, Shuaishuai Shen, Yougen Wu et autres

Camellia vietnamensis grows in a unique tropical environment, and its seed oil has a rich aroma. The content of unsaturated fatty acids in C. vietnamensis oil is up to 90%, which can regulate human lipid metabolism and prevent cardiovascular and cerebrovascular diseases. …

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Demulsification performance of an electrostatic coalescer with novel cylinder–plate electrodes

Yi Shi, Jiaqing Chen, Qingwei Zheng, Yiming Gao et autres

A novel cylinder–plate electrode which could generate non-uniform electric field between adjacent cylinder and plate electrode was developed. The influence of electric field intensity, frequency, inlet volume flowrate and water content on the electrostatic coalescence performance was investigated. Results showed that reduction …

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π‐Extension Assisted Macrocycle‐Encapsulated Non‐Fused Ring Electron Acceptors with Dual Charge Transporting Pathways for High‐Performance Organic Solar Cells

Shuaishuai Shen, Wenjing Liu, Hao Feng Lu, Wenjun Zhang et autres

Abstract Achieving compact and ordered charge transfer channels is essential for high‐performance non‐fused ring electron acceptors (NFREAs). Herein, this is demonstrated that how the stacking arrangement of non‐fused ring molecules with macrocycle encapsulated can be regulated via π‐extension, thus resulting in nearly …

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Medium-Band-Gap, Fully Nonfused Electron Acceptors with High Voc for High-Efficiency Binary and Ternary Organic Solar Cells

Xingjie Wang, Yaohua Shi, Miao Li, Shuaishuai Shen et autres

Fully nonfused electron acceptors (FNEAs) have shown a huge potential for organic solar cells (OSCs). Herein, two medium-band-gap FNEAs, namely, 2T-BO-1 and 2T-BO-2, are developed based on the “benzene–dithiophene–benzene” skeleton, with the assistance of alkoxyl side chains to form S···O conformational locks. …

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