Results 261 to 270 of about 4,545,515 (287)

Porous Pd nanoparticles with high photothermal conversion efficiency for efficient ablation of cancer cells

Nanoscale, 2014
Pd NPs with a porous structure exhibit enhanced near infrared (NIR) absorption and enhanced photothermal effect compared to Pd nanocubes with a similar size, and show very high efficacy in photothermal ablation of HeLa cells.
Jia-Wen, Xiao, Shi-Xuan, Fan, Feng, Wang, Ling-Dong, Sun, Xiao-Yu, Zheng, Chun-Hua, Yan   +5 more
openaire   +2 more sources

Ternary Chalcogenide Nanosheets with Ultrahigh Photothermal Conversion Efficiency for Photoacoustic Theranostics

Small, 2017
2D materials (TDMs) have been explored for photonic theranostics. To achieve deep‐tissue penetration, near‐infrared (NIR) light is essential for photoacoustic (PA) theranostics. However, because the absorption profiles of existing TDMs are generally featureless with no obvious NIR absorption peaks, their PA signals and therapeutic efficacies are ...
Houjuan, Zhu, Zhuangchai, Lai, Yuan, Fang, Xu, Zhen, Chaoliang, Tan, Xiaoying, Qi, Dan, Ding, Peng, Chen, Hua, Zhang, Kanyi, Pu   +9 more
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A Cyanine with 83.2% Photothermal Conversion Efficiency and Absorption Wavelengths over 1200 nm for Photothermal Therapy

Advanced Healthcare Materials
AbstractDeveloping small‐molecule photothermal agents (PTAs) with good near‐infrared‐II (NIR‐II) response for deeper tissue penetration and minimizing damage to healthy tissues has attracted much attention in photothermal therapy (PTT). However, concentrating ultra‐long excitation wavelengths and high photothermal conversion efficiencies (PCEs) into a ...
Liang Zhao, Han Zhu, You‐Yang Duo, Zhi‐Gang Wang, Dai‐Wen Pang, Shu‐Lin Liu   +5 more
openaire   +2 more sources

Banyan-inspired hierarchical evaporators for efficient solar photothermal conversion

Applied Energy, 2020
Abstract As a direct approach to utilize the abundant solar energy, solar steam generation surges in recent decade to generate fresh water from sewage and seawater, while still suffering from challenges like a limited photothermal efficiency and scale manufacturing.
Qian Zhang, Run Hu, Yali Chen, Xingfang Xiao, Guomeng Zhao, Hongjun Yang, Jinhua Li, Weilin Xu, Xianbao Wang   +8 more
openaire   +1 more source

Unified upper bound for photothermal and photovoltaic conversion efficiency

Journal of Applied Physics, 2008
The available work (exergy) of thermal radiation is derived ab initio by using a simple statistical thermodynamic approach. A general upper bound for the efficiency of thermal radiation conversion into work is derived. This efficiency is different from the Carnot efficiency and generalizes the Petela efficiencylike factor appearing in the available ...
openaire   +1 more source

A Method for Measuring the Photothermal Conversion Efficiency of Solar Energy

Japanese Journal of Applied Physics, 1979
An instrument and method for measuring the photothermal conversion efficiency of solar energy, based on the temperature equilibrium type radiometer, are described. The efficiency of certain transition metal oxides is measured at room temperature using samples 0.7 mm in thickness.
openaire   +1 more source

Photoacoustic figure of merit for photothermal energy conversion efficiency

Optics Communications, 1981
Abstract The photoacoustic signal detected near the non-illuminated back surface of a photothermal converter can be used for comparative studies of the conversion efficiency of the converter. The signal is caused not only by the thermal wave transmitted through the sample, but also by mechanical vibrations of the sample itself.
openaire   +1 more source

Evaluation of exergy and energy efficiencies of photothermal solar radiation conversion

Applied Solar Energy, 2009
In this paper, a new thermodynamic model for photothermal solar radiation conversion into mechanical through a heat engines is proposed. The developed equations allow for the energy and exergy contents of solar radiation to be found, as well as the energy and exergy efficiencies corresponding to concentration type solar-thermal heat engines operating ...
C. Zamfirescu, I. Dincer, W. R. Wagar
openaire   +1 more source

Noble metal-decorated MXene for broadband and high-efficiency photothermal conversion

Journal of Colloid and Interface Science
Two-dimensional MXenes, owing to their metallic conductivity and unique optical properties, hold immense potential for advanced technologies spanning energy conversion, biomedical therapy, and intelligent thermal management. However, achieving precise and synergistic control over their optical performance across the entire solar and infrared spectrum ...
Zhijie, Liu, Huying, Yan, Zhenyang, Xiao, Liangjun, Yin, Bo, Peng, Longjiang, Deng   +5 more
openaire   +2 more sources

Efficient Hybrid Photovoltaic-Photothermal Solar Conversion System With Cogeneration

SPIE Proceedings, 1985
A new type of concentrating photovoltaic-photothermal solar conversion system with output cogeneration is presented. This technique, called total solar cogeneration (TSC), converts the total solar spectrum directly and cogenerates the output into three energy components: high-temperature heat (HT), photovoltaic electricity (PV), and low-temperature ...
D. E. Soule, E. F. Rechel, D. W. Smith, F. A. Willis   +3 more
openaire   +1 more source