Search Results - "Chen, Renkun"

From high-entropy ceramics to compositionally-complex ceramics: A case study of fluorite oxides by Wright, Andrew J., Wang, Qingyang, Huang, Chuying, Nieto, Andy, Chen, Renkun, Luo, Jian

“…•Nine compositionally-complex fluorite oxides (CCFOs) are made and investigated.•CCFOs exhibit reduced thermal conductivity and increased cubic phase…”
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Size disorder as a descriptor for predicting reduced thermal conductivity in medium- and high-entropy pyrochlore oxides by Wright, Andrew J., Wang, Qingyang, Ko, Shu-Ting, Chung, Ka Man, Chen, Renkun, Luo, Jian

“…•18 compositionally-complex (medium- and high-entropy) pyrochlore oxides fabricated.•Mixing of cations at A- and/or B-sites leads to reduced thermal…”
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Emerging Materials and Strategies for Personal Thermal Management by Hu, Run, Liu, Yida, Shin, Sunmi, Huang, Shiyao, Ren, Xuecheng, Shu, Weicheng, Cheng, Jingjing, Tao, Guangming, Xu, Weilin, Chen, Renkun, Luo, Xiaobing

“…In this decade, the demands of energy saving and diverse personal thermoregulation requirements along with the emergence of wearable electronics and smart…”
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Optical properties and thermal stability of Cu spinel oxide nanoparticle solar absorber coatings by Rubin, Elizabeth B., Chen, Yiming, Chen, Renkun

“…Optimal coatings on receivers for concentrated solar power plants (CSP) not only need to have high solar absorptance, but should also possess superior…”
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Low-dimensional heat conduction in surface phonon polariton waveguide by Pei, Yu, Chen, Li, Jeon, Wonjae, Liu, Zhaowei, Chen, Renkun

“…Heat conduction in solids is typically governed by the Fourier’s law describing a diffusion process due to the short wavelength and mean free path for phonons…”
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Fabrication of Microdevices with Integrated Nanowires for Investigating Low-Dimensional Phonon Transport by Hippalgaonkar, Kedar, Huang, Baoling, Chen, Renkun, Sawyer, Karma, Ercius, Peter, Majumdar, Arun

“…Phonons in low-dimensional structures with feature sizes on the order of the phonon wavelength may be coherently scattered by the boundary. This may give rise…”
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Nanowires for Enhanced Boiling Heat Transfer by Chen, Renkun, Lu, Ming-Chang, Srinivasan, Vinod, Wang, Zhijie, Cho, Hyung Hee, Majumdar, Arun

“…Boiling is a common mechanism for liquid−vapor phase transition and is widely exploited in power generation and refrigeration devices and systems. The efficacy…”
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Far-field coherent thermal emission from polaritonic resonance in individual anisotropic nanoribbons by Shin, Sunmi, Elzouka, Mahmoud, Prasher, Ravi, Chen, Renkun

“…Coherent thermal emission deviates from the Planckian blackbody emission with a narrow spectrum and strong directionality. While far-field thermal emission…”
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Unusually High and Anisotropic Thermal Conductivity in Amorphous Silicon Nanostructures by Kwon, Soonshin, Zheng, Jianlin, Wingert, Matthew C, Cui, Shuang, Chen, Renkun

“…Amorphous Si (a-Si) nanostructures are ubiquitous in numerous electronic and optoelectronic devices. Amorphous materials are considered to possess the lower…”
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Wearable thermoelectrics for personalized thermoregulation by Hong, Sahngki, Gu, Yue, Seo, Joon Kyo, Wang, Joseph, Liu, Ping, Meng, Y Shirley, Xu, Sheng, Chen, Renkun

“…Thermoregulation has substantial implications for energy consumption and human comfort and health. However, cooling technology has remained largely unchanged…”
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Silicide Nanopowders as Low-Cost and High-Performance Thermoelectric Materials by Chen, Renkun

“…Thermoelectric devices directly convert heat into electricity and are very attractive for waste heat recovery and solar energy utilization. If thermoelectric…”
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Enhanced thermoelectric performance of rough silicon nanowires by Chen, Renkun, Garnett, Erik C, Hochbaum, Allon I, Delgado, Raul Diaz, Najarian, Mark, Majumdar, Arun, Liang, Wenjie, Yang, Peidong

“…Approximately 90 per cent of the world's power is generated by heat engines that use fossil fuel combustion as a heat source and typically operate at 30-40 per…”
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Dual-mode solid-state thermal rectification by Shrestha, Ramesh, Luan, Yuxuan, Luo, Xiao, Shin, Sunmi, Zhang, Teng, Smith, Phil, Gong, Wei, Bockstaller, Michael, Luo, Tengfei, Chen, Renkun, Hippalgaonkar, Kedar, Shen, Sheng

“…Thermal rectification is an exotic thermal transport phenomenon which allows heat to transfer in one direction but block the other. We demonstrate an unusual…”
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Sub-amorphous Thermal Conductivity in Ultrathin Crystalline Silicon Nanotubes by Wingert, Matthew C, Kwon, Soonshin, Hu, Ming, Poulikakos, Dimos, Xiang, Jie, Chen, Renkun

“…Thermal transport behavior in nanostructures has become increasingly important for understanding and designing next generation electronic and energy devices…”
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Critical heat flux of pool boiling on Si nanowire array-coated surfaces by Lu, Ming-Chang, Chen, Renkun, Srinivasan, Vinod, Carey, Van P., Majumdar, Arun

“…Pool boiling of saturated water on plain Si surfaces and surfaces covered with a dense array of Si nanowires (SiNWs) has been studied. Measured CHF and heat…”
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Thermal conductance of thin silicon nanowires by Chen, Renkun, Hochbaum, Allon I, Murphy, Padraig, Moore, Joel, Yang, Peidong, Majumdar, Arun

“…The thermal conductance of individual single crystalline silicon nanowires with diameters less than 30 nm has been measured from 20 to 100 K. The observed…”
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Thermal conductivity reduction of tungsten plasma facing material due to helium plasma irradiation in PISCES using the improved 3-omega method by Cui, Shuang, Simmonds, Michael, Qin, Wenjing, Ren, Feng, Tynan, George R., Doerner, Russell P., Chen, Renkun

“…The near-surface region of plasma facing material (PFM) plays an important role in thermal management of fusion reactors. In this work, we measured thermal…”
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Ultralow Thermal Conductivity of Multilayers with Highly Dissimilar Debye Temperatures by Dechaumphai, Edward, Lu, Dylan, Kan, Jimmy J, Moon, Jaeyun, Fullerton, Eric E, Liu, Zhaowei, Chen, Renkun

“…Thermal transport in multilayers (MLs) has attracted significant interest and shows promising applications. Unlike their single-component counterparts, MLs…”
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High-Performance Screen-Printed Thermoelectric Films on Fabrics by Shin, Sunmi, Kumar, Rajan, Roh, Jong Wook, Ko, Dong-Su, Kim, Hyun-Sik, Kim, Sang Il, Yin, Lu, Schlossberg, Sarah M., Cui, Shuang, You, Jung-Min, Kwon, Soonshin, Zheng, Jianlin, Wang, Joseph, Chen, Renkun

“…Printing techniques could offer a scalable approach to fabricate thermoelectric (TE) devices on flexible substrates for power generation used in wearable…”
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Thermal Conductivity of Ge and Ge–Si Core–Shell Nanowires in the Phonon Confinement Regime by Wingert, Matthew C, Chen, Zack C. Y, Dechaumphai, Edward, Moon, Jaeyun, Kim, Ji-Hun, Xiang, Jie, Chen, Renkun

“…Heterostructure core–shell semiconductor nanowires (NWs) have attracted tremendous interest recently due to their remarkable properties and potential…”
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