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34 results on '"Shen, Qingchen"'

2. Manipulation of Convection Using Infrared Light Emitted from Human Hands

Author

Zhu, Hanrui, primary, Luo, Zhen, additional, Zhang, Lifu, additional, Shen, Qingchen, additional, Yang, Runheng, additional, Cheng, Weizheng, additional, Zhang, Yingyue, additional, Jiang, Modi, additional, Guo, Chunzhi, additional, Fu, Benwei, additional, Song, Chengyi, additional, Tao, Peng, additional, An, Shun, additional, Shang, Wen, additional, and Deng, Tao, additional

Published
2024
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4. Anti‐Environmental Aging Passive Daytime Radiative Cooling.

Author

Song, Jianing, Shen, Qingchen, Shao, Huijuan, and Deng, Xu

Subjects
*COOLING, *EXTREME weather, *SURFACE contamination, *GLOBAL warming
Abstract

Passive daytime radiative cooling technology presents a sustainable solution for combating global warming and accompanying extreme weather, with great potential for diverse applications. The key characteristics of this cooling technology are the ability to reflect most sunlight and radiate heat through the atmospheric transparency window. However, the required high solar reflectance is easily affected by environmental aging, rendering the cooling ineffective. In recent years, significant advancements have been made in understanding the failure mechanisms, design strategies, and manufacturing technologies of daytime radiative cooling. Herein, a critical review on anti‐environmental aging passive daytime radiative cooling with the goal of advancing their commercial applications is presented. It is first introduced the optical mechanisms and optimization principles of radiative cooling, which serve as a basis for further endowing environmental durability. Then the environmental aging conditions of passive daytime radiative cooling, mainly focusing on UV exposure, thermal aging, surface contamination and chemical corrosion are discussed. Furthermore, the developments of anti‐environmental aging passive daytime radiative cooling materials, including design strategies, fabrication techniques, structures, and performances, are reviewed and classified for the first time. Last but not the least, the remaining open challenges and the insights are presented for the further promotion of the commercialization progress. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Structural Color from Cellulose Nanocrystals or Chitin Nanocrystals: Self-Assembly, Optics, and Applications

Author

Frka-Petesic, Bruno, primary, Parton, Thomas G., additional, Honorato-Rios, Camila, additional, Narkevicius, Aurimas, additional, Ballu, Kevin, additional, Shen, Qingchen, additional, Lu, Zihao, additional, Ogawa, Yu, additional, Haataja, Johannes S., additional, Droguet, Benjamin E., additional, Parker, Richard M., additional, and Vignolini, Silvia, additional

Published
2023
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6. Lightweight All Graphene‐Based Two‐Phase Heat Transport Devices

Author

Zheng, Feiyu, primary, Shen, Qingchen, additional, Wang, Zhiying, additional, Cheng, Weizheng, additional, Wang, Ruitong, additional, Fang, Cheng, additional, Chu, Ben, additional, Tao, Jinran, additional, Zhang, Wanli, additional, Tao, Peng, additional, Song, Chengyi, additional, Shang, Wen, additional, Fu, Benwei, additional, and Deng, Tao, additional

Published
2023
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7. Liquid metal-based soft, hermetic, and wireless-communicable seals for stretchable systems

Author

Shen, Qingchen, primary, Jiang, Modi, additional, Wang, Ruitong, additional, Song, Kexian, additional, Vong, Man Hou, additional, Jung, Woojin, additional, Krisnadi, Febby, additional, Kan, Ruyu, additional, Zheng, Feiyu, additional, Fu, Benwei, additional, Tao, Peng, additional, Song, Chengyi, additional, Weng, Guoming, additional, Peng, Bo, additional, Wang, Jun, additional, Shang, Wen, additional, Dickey, Michael D., additional, and Deng, Tao, additional

Published
2023
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8. Structurally Colored Radiative Cooling Cellulosic Films

Author

Zhu, Wenkai, primary, Droguet, Benjamin, additional, Shen, Qingchen, additional, Zhang, Yun, additional, Parton, Thomas G., additional, Shan, Xiwei, additional, Parker, Richard M., additional, De Volder, Michael F. L., additional, Deng, Tao, additional, Vignolini, Silvia, additional, and Li, Tian, additional

Published
2022
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9. Skin‐Inspired Capacitive Stress Sensor with Large Dynamic Range via Bilayer Liquid Metal Elastomers

Author

Yang, Jiayi, primary, Kwon, Ki Yoon, additional, Kanetkar, Shreyas, additional, Xing, Ruizhe, additional, Nithyanandam, Praneshnandan, additional, Li, Yang, additional, Jung, Woojin, additional, Gong, Wei, additional, Tuman, Mary, additional, Shen, Qingchen, additional, Wang, Meixiang, additional, Ghosh, Tushar, additional, Chatterjee, Kony, additional, Wang, Xinxin, additional, Zhang, Dongguang, additional, Kim, Tae‐il, additional, Truong, Vi Khanh, additional, and Dickey, Michael D., additional

Published
2021
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10. Vapor bubble induced electric current generation

Author

Li, Wenzhuo, primary, Zhang, Wanying, additional, Zhou, Lingye, additional, Shen, Qingchen, additional, Jiang, Modi, additional, Fu, Benwei, additional, Tao, Peng, additional, Song, Chengyi, additional, Wu, Jianbo, additional, Deng, Tao, additional, and Shang, Wen, additional

Published
2021
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12. Skin‐Inspired Capacitive Stress Sensor with Large Dynamic Range via Bilayer Liquid Metal Elastomers.

Author

Yang, Jiayi, Kwon, Ki Yoon, Kanetkar, Shreyas, Xing, Ruizhe, Nithyanandam, Praneshnandan, Li, Yang, Jung, Woojin, Gong, Wei, Tuman, Mary, Shen, Qingchen, Wang, Meixiang, Ghosh, Tushar, Chatterjee, Kony, Wang, Xinxin, Zhang, Dongguang, Kim, Tae‐il, Truong, Vi Khanh, and Dickey, Michael D.

Subjects
LIQUID metals, CAPACITIVE sensors, ELASTOMERS, TACTILE sensors, PRESSURE sensors, CONCRETE pavements
Abstract

Soft devices that sense touch are important for prosthetics, soft robotics, and electronic skins. One way to sense touch is to use a capacitor consisting of a soft dielectric layer sandwiched between two electrodes. Compressing the capacitor brings the electrodes closer together and thereby increases capacitance. Ideally, sensors of touch should have both large sensitivity and the ability to measure a wide range of stress (dynamic range). Although skin has such capabilities, it remains difficult to achieve both sensitivity and dynamic range in a single manmade sensor. Inspired by skin, this work reports a soft capacitive pressure sensor based on a bilayer of liquid metal elastomer foam (B‐LMEF). The B‐LMEF consists of an elastomer slab (elastic modulus: ≈655 kPa) laminated with a soft liquid metal elastomer foam (LMEF, elastic modulus: ≈7 kPa). The LMEF deforms at small stresses (<10 kPa), and both layers deform at large stresses (>10 kPa). The B‐LMEF has high sensitivity (0.073 kPa–1) at small stress and can operate over a large range of stress (200 kPa), which leads to a large dynamic range (≈4.1 × 105). Additionally, the elastomer slab has a large energy dissipation coefficient; the skin uses this property to cushion the human body from external stress and strain. [ABSTRACT FROM AUTHOR]

Published
2022
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18. Patterned Surfaces for Solar-Driven Interfacial Evaporation

Author

Luo, Yini, primary, Fu, Benwei, additional, Shen, Qingchen, additional, Hao, Wei, additional, Xu, Jiale, additional, Min, Mengdie, additional, Liu, Yanming, additional, An, Shun, additional, Song, Chengyi, additional, Tao, Peng, additional, Wu, Jianbo, additional, Shang, Wen, additional, and Deng, Tao, additional

Published
2019
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19. An open thermo-electrochemical cell enabled by interfacial evaporation

Author

Shen, Qingchen, primary, Ning, Ziyang, additional, Fu, Benwei, additional, Ma, Shuai, additional, Wang, Zhiying, additional, Shu, Lei, additional, Zhang, Lifu, additional, Wang, Xinyu, additional, Xu, Jiale, additional, Tao, Peng, additional, Song, Chengyi, additional, Wu, Jianbo, additional, Deng, Tao, additional, and Shang, Wen, additional

Published
2019
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24. Subtractive Structural Modification ofMorphoButterfly Wings

Author

Shen, Qingchen, primary, He, Jiaqing, additional, Ni, Mengtian, additional, Song, Chengyi, additional, Zhou, Lingye, additional, Hu, Hang, additional, Zhang, Ruoxi, additional, Luo, Zhen, additional, Wang, Ge, additional, Tao, Peng, additional, Deng, Tao, additional, and Shang, Wen, additional

Published
2015
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26. Infrared Detection Based on Localized Modification ofMorphoButterfly Wings

Author

Zhang, Fangyu, primary, Shen, Qingchen, additional, Shi, Xindong, additional, Li, Shipu, additional, Wang, Wanlin, additional, Luo, Zhen, additional, He, Gufeng, additional, Zhang, Peng, additional, Tao, Peng, additional, Song, Chengyi, additional, Zhang, Wang, additional, Zhang, Di, additional, Deng, Tao, additional, and Shang, Wen, additional

Published
2014
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27. Bioinspired Engineering of Thermal Materials

Author

Tao, Peng, primary, Shang, Wen, additional, Song, Chengyi, additional, Shen, Qingchen, additional, Zhang, Fangyu, additional, Luo, Zhen, additional, Yi, Nan, additional, Zhang, Di, additional, and Deng, Tao, additional

Published
2014
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33. Liquid Metal–Elastomer Seals for Stretchable Organic Electrolyte‐Based Lithium‐Ion Batteries.

Author

Kan, Ruyu, Jiang, Modi, Song, Kexian, Chen, Rui, Shen, Qingchen, Wang, Ruitong, Weng, Guoming, Fu, Benwei, Song, Chengyi, Tao, Peng, Wang, Jun, Dickey, Michael D., Deng, Tao, and Shang, Wen

Abstract

Rapid progresses concerning wearable electronics call for stretchable batteries. Owing to the merits of high energy density and wide operating voltage range, organic electrolyte‐based lithium‐ion batteries (LIBs) take a large proportion in the powering markets. Due to the high sensitivity to moisture and oxygen, it is difficult to obtain long‐term reliable stretchable organic electrolyte‐based LIBs when they are directly exposed to the air. Benefiting from the outstanding gas impermeability of liquid metal (LM) and relatively good barrier properties for reactive acid gas molecules by polyisobutylene (PIB), an LM‐PIB seal is demonstrated for organic electrolyte‐based LIBs. In the seal, LM can prevent the inward permeation of oxygen and water vapor, and PIB can block the outward permeation of hydrolysis acid generated from the side reactions during the operation of the organic electrolyte‐based LIBs, which helps prevent the detrimental interaction between the hydrolysis acid and LM. A specific capacity of over 120 mAh g−1 is achieved and the battery shows consistent electrochemical performances under multiple deformations. This study offers a different design approach for long‐term operation of stretchable organic electrolyte‐based LIBs. [ABSTRACT FROM AUTHOR]

Published
2023
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34. Structurally Colored Radiative Cooling Cellulosic Films

Author

Wenkai Zhu, Benjamin Droguet, Qingchen Shen, Yun Zhang, Thomas G. Parton, Xiwei Shan, Richard M. Parker, Michael F. L. De Volder, Tao Deng, Silvia Vignolini, Tian Li, Zhu, Wenkai [0000-0002-1844-0579], Droguet, Benjamin [0000-0002-9293-5182], Shen, Qingchen [0000-0001-6394-7769], Zhang, Yun [0000-0003-1665-0561], Parton, Thomas [0000-0001-7153-1042], Parker, Richard [0000-0002-4096-9161], De Volder, Michael FL [0000-0003-1955-2270], Vignolini, Silvia [0000-0003-0664-1418], Li, Tian [0000-0002-1087-0662], Apollo - University of Cambridge Repository, Parton, Thomas G [0000-0001-7153-1042], and Parker, Richard M [0000-0002-4096-9161]

Subjects
Photons, General Chemical Engineering, General Engineering, General Physics and Astronomy, Medicine (miscellaneous), structural color, sustainability, Biochemistry, Genetics and Molecular Biology (miscellaneous), roll-to-roll deposition, cellulose, Phase Transition, Nanostructures, Cold Temperature, Sunlight, General Materials Science, sub-ambient radiative cooling
Abstract

Funder: Purdue University; Id: http://dx.doi.org/10.13039/100006377, Funder: ASME Haythornthwaite Foundation Research, Funder: Shanghai Jiao Tong, Daytime radiative cooling (DRC) materials offer a sustainable approach to thermal management by exploiting net positive heat transfer to deep space. While such materials typically have a white or mirror-like appearance to maximize solar reflection, extending the palette of available colors is required to promote their real-world utilization. However, the incorporation of conventional absorption-based colorants inevitably leads to solar heating, which counteracts any radiative cooling effect. In this work, efficient sub-ambient DRC (Day: -4 °C, Night: -11 °C) from a vibrant, structurally colored film prepared from naturally derived cellulose nanocrystals (CNCs), is instead demonstrated. Arising from the underlying photonic nanostructure, the film selectively reflects visible light resulting in intense, fade-resistant coloration, while maintaining a low solar absorption (≈3%). Additionally, a high emission within the mid-infrared atmospheric window (>90%) allows for significant radiative heat loss. By coating such CNC films onto a highly scattering, porous ethylcellulose (EC) base layer, any sunlight that penetrates the CNC layer is backscattered by the EC layer below, achieving broadband solar reflection and vibrant structural color simultaneously. Finally, scalable manufacturing using a commercially relevant roll-to-roll process validates the potential to produce such colored radiative cooling materials at a large scale from a low-cost and sustainable feedstock.

Published
2022
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