Enhanced solar thermal conversion performance of plasmonic gold dimer nanofluids

Chen, Zhuo; Chen, Meijie; Yan, Hongjie; Zhou, Panyue; Chen, Xingyu

doi:10.1016/j.applthermaleng.2020.115561

Cited by 31 publications

(11 citation statements)

References 35 publications

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“…Results also found that Ag NPs with sharp edges can induce multiple absorption peaks due to both LSPR and lightning rod effect to broad the absorption spectrum [74]. In addition, a plasmonic dimer nanofluid, consisting of the rod and sphere, was proposed to enhance the solar absorption performance by LSPR, PSPR, and gap resonance between the rod and sphere at different wavelengths [17], which was also similar as the thorny NPs [75].…”

Section: Theoretical Designmentioning

confidence: 68%

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Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Chen¹,

Chen²,

Wu³

2021

Advances in Microfluidics and Nanofluids

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Plasmonic nanofluids show great interests for light-matter applications due to the tunable optical properties. By tuning the nanoparticle (NP) parameters (material, shape, and size) or base fluid, plasmonic nanofluids can either absorb or transmit the specific solar spectrum and thus making nanofluids ideal candidates for various solar applications, such as: full spectrum absorption in direct solar absorption collectors, selective absorption or transmittance in solar photovoltaic/thermal (PV/T) systems, and local heating in the solar evaporation or nanobubble generation. In this chapter, we first summarized the preparation methods of plasmonic nanofluids, including the NP preparation based on the top-down and bottom-up, and the nanofluid preparation based on one-step and two-step. And then solar absorption performance of plasmonic nanofluids based on the theoretical and experimental design were discussed to broaden the absorption spectrum of plasmonic nanofluids. At last, solar thermal applications and challenges, including the applications of direct solar absorption collectors, solar PT/V systems, solar distillation, were introduced to promote the development of plasmon nanofluids.

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Section: Theoretical Designmentioning

confidence: 68%

“…Light propagation in the nanofluid [17] and the surface plasmon resonance (SPR) around the NP surface, dividing into localized and propagating surface plasmon resonance (LSPR and PSPR).…”

Section: Figurementioning

confidence: 99%

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Chen¹,

Chen²,

Wu³

2021

Advances in Microfluidics and Nanofluids

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“…As can be seen from Figure 7 a, the first absorption peak hardly changes, which is caused by the main LSPR around the sphere. Without considering Δ r = 0, with the increase in Δ r , the second and third absorption peaks are blueshifted, which is caused by the gap resonance between the two spheres as the gap decreases with the increase in the embedding depth Δ r [ 35 ]. However, compared with Δ r = 0, the second absorption peak is blueshifted or redshifted after the embedding between the two spheres, and all of the third absorption peaks are redshifted.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, in order to enhance the absorption of solar energy, researchers have a strong interest in the exploration of nanoparticles. Chen [ 35 ] proposed a plasma dimer Au nanoparticle composed of spheres and rods to improve the absorption efficiency of solar energy and achieve broadband absorption. The underlying mechanism was found to be the photonic superposition of local surface plasmon resonance, propagating surface plasmon resonance, and gap resonances at different wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Optical Properties of Plasma Dimer Nanoparticles for Solar Energy Absorption

Sun

Qin

Zhai³

et al. 2021

Nanomaterials

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Plasmonic nanofluids have excellent optical properties in solar energy absorption and have been widely studied in solar thermal conversion technology. The absorption of the visible region of solar energy by ordinary metal nanoparticles is usually limited to a narrow resonance band, so it is necessary to enhance the coupling effect of nanoparticles in the visible spectrum region to improve absorption efficiency. However, it is still a difficult task to improve solar energy absorption by adjusting the structure and performance of nanoparticles. In this paper, a plasma dimer Ag nanoparticle is proposed to excite localized surface plasmon resonance (LSPR). Compared with an ordinary Ag nanoparticle in the visible region, the plasmonic Ag dimer nanoparticle produces more absorption peaks and broader absorption bands, which can broaden solar energy absorption. By analyzing the electromagnetic field of the nanoparticle, the resonance mode of the plasma dimer is discussed. The effects of the geometric dimensions of the nanoparticle and the embedding of two spheres on the optical properties are studied. In addition, the effects of a trimer and its special structure on the optical properties are also analyzed. The results show that the proposed plasma dimer Ag nanoparticle has broad prospects for application in solar thermal conversion technology.

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“…Plasmonic metal nanoparticles such as Cu, Au, and Ag, 19,20 are another group of nanomaterials added to the base fluids to enhance their optical properties. Metallic nanofluids have an individual advantage in comparison to carbon nanofluids due to their higher absorption coefficient 21 .…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on the solar–thermal energy conversion performance of Fe ₂ O ₃ nanofluid with the focus on nanoparticles shape and concentration

Hosseini

Ayar

Talebizadeh

et al. 2021

Intl J of Energy Research

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Summary Today, the application of nanoparticles with controlled morphologies in solar energy conversion and storage systems is highlighted. This study focused on the assessment of Fe2O3 water‐based nanofluids in volumetric solar absorbers and compared the performance of three shapes (blade, spherical, and octahedral), and three concentrations of nanoparticles (0.005, 0.01, and 0.02 vol%). First, a set of homogeneous nanofluids were prepared using a probe ultrasonic apparatus and by adding an anionic surfactant. In addition to long‐time stability and narrow particles size distribution, obtained nanofluids presented a considerable light absorption capability in the visible region. It was seen that the light absorption spectrum was broadened with increasing the nanofluid concentration. Moreover, for each concentration, the blade nanoparticles improved the extinction coefficient and the solar‐weighted absorption fraction relatively higher than the other shapes. For example, at a concentration of 0.02 vol% and penetration distance of 1 cm, the blade‐nanofluid absorbed 96.2% of incident solar energy, which was higher than the spherical nanofluid with 93.5% and octahedral nanofluid with 87.2%. The results of thermal tests conducted in a set of bath direct solar collectors showed that the highest solar–thermal conversion efficiency after 1 hour of light exposure was related to 0.02% blade‐nanofluid (82%). In these conditions, the growth of bulk temperature was observed 2.31 times higher than pure water.

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Enhanced solar thermal conversion performance of plasmonic gold dimer nanofluids

Cited by 31 publications

References 35 publications

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Optical Properties of Plasma Dimer Nanoparticles for Solar Energy Absorption

An experimental investigation on the solar–thermal energy conversion performance of Fe ₂ O ₃ nanofluid with the focus on nanoparticles shape and concentration

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Enhanced solar thermal conversion performance of plasmonic gold dimer nanofluids

Cited by 31 publications

References 35 publications

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Optical Properties of Plasma Dimer Nanoparticles for Solar Energy Absorption

An experimental investigation on the solar–thermal energy conversion performance of Fe 2 O 3 nanofluid with the focus on nanoparticles shape and concentration

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An experimental investigation on the solar–thermal energy conversion performance of Fe ₂ O ₃ nanofluid with the focus on nanoparticles shape and concentration