Tian Xia

Opto‐Electro‐Thermal Loss Mechanisms and Optimization Design in Organic Solar Cells

Yidan An, Nan Zhang, Tian Xia, Zhongwei Ge et autres

Organic solar cells (OSCs) have garnered extensive attention due to their advantage of low cost and lightweight properties. However, owing to the complex interplay between excitons and charge carriers, the intrinsic energy loss pathways and performance-limiting factors in OSCs remain poorly understood. …

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Strengthened Interfacial Coupling Between Self‐Assembled Monolayers and Bulk Heterojunctions Enables Thermally Stable Organic Solar Cells

Gengxin Du, Zhihong Wang, Songyang Yuan, Wenlin Jiang et autres

ABSTRACT Self‐assembled monolayers (SAMs) have emerged as an effective interfacial strategy for improving charge extraction and interfacial energetics in organic solar cells (OSCs); however, limited operational stability, particularly under prolonged high‐temperature conditions, remains a critical challenge for practical deployment. Here, we systematically …

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Toward a Robust ZnO Interface via Fullerene‐Based SAMs: Defect Passivation and Compatibility Tuning for High‐Performance Inverted Organic Solar Cells

Tian Xia, Qian Li, Kaikai Liu, Shanchao Ouyang et autres

The performance and operational stability of inverted organic solar cells (OSCs) are often limited by charge recombination and interfacial instability at the electron transport layer (ETL). To address this, we designed two fullerene-based self-assembled monolayers (SAMs)-C2-PA and 4EG-PA-as interfacial modifiers for zinc …

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Spectroscopy and Coherent Control of Two-Level System Defect Ensembles Using a Broadband 3D Waveguide

Qianxu Wang, Juan Sebastian Salcedo-Gallo, Salil Bedkihal, Tian Xia et autres

Defects in solid-state materials play a central role in determining coherence, stability, and performance in quantum technologies. Although narrowband techniques can probe specific resonances with high precision, a broadband spectroscopic approach captures the full spectrum of defect properties and dynamics. Two-level system …

A Network Tomography Approach for Measurement and Fault Localization in Low Earth Orbit (LEO) Satellite Networks

Tian Xia, Jiang Liu, Ran Zhang, Guanwen Li et autres

With the rapid expansion of Low Earth Orbit (LEO) mega-constellations, efficient network measurement has emerged as a critical challenge, directly impacting network state awareness and fault recovery capabilities. To address the high fault probability caused by the complex space environment and the …

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An Active Probing-Based Approach for Faulty Link Localization in Satellite Networks

Yihan Liu, Jiang Liu, Tian Xia, Ran Zhang et autres

With the rapid deployment of large-scale LEO satellite constellations, maintaining network reliability under dynamic topologies and frequent link disruptions has become a critical challenge. Existing monitoring methods often incur excessive communication overhead or depend on centralized control, limiting scalability and responsiveness. This …

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Asymmetrically coordinated single-atom catalysts: from synthetic strategy to structure-activity relationship

Tian Xia, Xiaofeng Wang, Jiawei Wan, Jian Quan Qi et autres

Asymmetric coordination structures in single-atom catalysts (SACs) represent a frontier in electrocatalysis, offering tunable electronic environments and enhanced catalytic performance beyond traditional symmetric M–N4 motifs. This review first categorizes asymmetric SACs into four structural families: (1) single-metal asymmetric coordination, achieved by heteroatom …

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Whole-genome resequencing unveils the phylogeographic coevolution of Oncomelania hupensis with Yangtze River dynamics in China

Fang Luo, Qin Liu, Tian Xia, Wenwen Lv et autres

The freshwater snail Oncomelania hupensis is the only intermediate host of Schistosoma japonicum and is currently mainly distributed in the middle and lower reaches of the Yangtze River in China. To explore the evolutionary history and adaptations of O. hupensis, we re-sequenced …

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The ionic and protonation states of flavin control the activation and recovery of Drosophila cryptochrome

Mengqi Wan, Yuting Dai, Yingjun Jiang, Mohan Wang et autres

Drosophila cryptochrome (dCry) is a flavin-containing photoreceptor. The release of C-terminal tail (CTT) upon illumination is a crucial step for the light sensing of dCry. Here, we demonstrated that both anionic semiquinone (asq) and anionic hydroquinone (hq) triggered CTT release, while neutral …

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Early Warning and Prevention of High-Frequency Emergencies Based on Trusted Data Spaces

Gai Feng, Xiaojin Zhao, Tian Xia, Lili Jia Shanghai et autres

As the frequency and scope of major diseases continue to rise, the need for an efficient early warning and prevention system in public health has become increasingly urgent. This paper addresses the challenges of preventing and predicting high-frequency and sudden-onset diseases, and …

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Reconfigurable Flexible Complementary Circuits Based on Polarity-Configurable Carbon Nanotube Transistors

Tian Xia, Fan Xia, Yuru Wang, Xiang Li et autres

Functional configurability is highly desired for flexible electronics to serve ever-changing and diverse application scenarios. In complementary metal–oxide–semiconductor (CMOS) logic circuits, functional configurations can be achieved at the most basic device level by modulating the P/N polarity of the field-effect transistors. The …

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Utilizing Zinc Oxide and Fluorescent Agent as a Versatile Electron Transport Layer for Highly Efficient and Stable Inverted Polymer Solar Cells

Jin-Xiang Chen, Meng Wang, Ping Cai, Huanzhi Zhang et autres

The development of excellent electron transport layers (ETLs) is crucial for high-performance organic solar cells (OSCs). In this work, we have developed a novel, versatile ETL composed of zinc oxide (ZnO) and a fluorescent agent to enhance the photovoltaic performance and photostability …

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