Besides the light absorption of a photothermal material, the light-to-heat conversion efficiency is another essential factor that directly quantifies the absorbed energy transferred to thermal energy, instead of

The results indicate that PU-SA/EG maintains high photothermal conversion and storage performances even after 500 cycles. These findings suggest that PU-SA/EG composites have promising potential for various applications, including photothermal conversion and energy storage. Download : Download high-res image

The photothermal effect has been widely observed in various photothermal materials, such as inorganic materials (e.g., plasmonic metals and semiconductors) 20, 21 and organic materials (e.g., polymers) 22, which convert incident light into thermal energy (heat) under irradiation.A photothermal process is a direct

Hence, combining the heat transfer process of NPT-PCMs1 block under solar irradiation (Fig. 12) and the existing calculation methods of energy conversion efficiency (Table 4), the intrinsic photothermal conversion efficiency (η P) is defined and the effective thermal storage efficiency (η T) is creatively proposed to respectively

2. Light-thermal-electricity energy conversion and storage. This section systematically summarizes the energy conversion and storage mechanisms of thermoelectric, photovoltaic and photothermal energy systems, compares in detail the advantages and disadvantages of hydrogel conversion materials and traditional

Direct-photothermal energy conversion and storage experiment: The 300 W Xe-lamp was used as the solar simulator in the direct-photothermal energy conversion and storage experiment with the intensity adjusted from 0.5 to 2 kW/m 2. During the experiment, the thermocouple was attached to the surface at different positions of the SA

These composites exhibited shape-stabilized energy storage and broad sunlight harvesting capabilities. Under broadband radiation (400 nm to 700 nm), the photothermal conversion and energy storage efficiency exceeded 74%. The dye-PUs/PEG composites demonstrated good thermal stability with a high latent heat of 120 J/g.

The prepared P-AEG-C exhibited superior mechanical properties and thermal energy storage properties, with a compressive strength of 14.8 MPa and light–thermal conversion efficiency of 92%. Therefore, the synthesized P-AEG-C has potential in light–thermal conversion applications and energy-saving buildings.

These photothermal microPCMs are promising solar-driven energy storage fillers for solar heating of water, energy-saving buildings and thermoregulation textiles [[22], [23], [24]]. PPy was rationally chosen as the photothermal polymer because of its broad-spectrum absorption, high photothermal conversion efficiency, and its facile

The resultant PCMPECAs/HDA composites exhibited excellent comprehensive performances, including relatively high thermal conductivity of up to 234.0% that of HDA, high energy storage density up to 205.10 kJ/kg, excellent shape and thermal stability and a remarkable photothermal conversion and storage efficiency of up to

Meanwhile, the corresponding intrinsic photothermal conversion efficiency and effective thermal storage efficiency are up to 60.1% and 97.3%, respectively. Introduction Nowadays, the energy consumption pattern of high-carbon is no longer suitable for global energy markets, and the mode of clean and low-carbon has

There are many reports in the literatures on the use of phase change materials (PCMs) with photothermal conversion to store and harness solar energy.

To evaluate the solar light-to-heat conversion and photothermal energy-storage performance in practical use, the PI/PR aerogel/PEG composite was subjected to outdoor sunlight irradiation for 5 h and then was transferred to an indoor environment at 25 °C to conduct natural cooling. The overall process was monitored in real-time with an

Herein, we prepared unique photothermal conversion phase-change materials, namely, CNT@PCMs, by introducing carbon nanotubes (CNTs) used as photothermal

Although organic phase-change materials (PCMs) have been widely used for thermal energy storage, their high flammability, poor photothermal conversion efficiency, and liquid leakage issues severely restrict their practical applications in solar–thermal fields. Herein, novel form-stabilized composite PCMs (CMPCMs) with high energy storage

The photothermal conversion and energy storage properties of the samples are characterized with the photothermal conversion efficiency, which can be calculated by Formula (1) [34]: (1) η = m ∆ H PS t t − t f where: η-photothermal conversion efficiency; Download : Download high-res image (91KB) Download : Download full-size

The photothermal properties and energy storage of microcapsules and coated fabrics were studied by an infrared thermal imager (FOTRIC 220S). The outdoor photothermal properties and energy storage of the coated fabric were studied by the FLIR E8 thermal camera and Xiaomi 13 mobile phone shooting. 3. Results and discussion3.1.

1. Introduction. The growing concerns about huge energy shortfall and environmental pollution caused by the excessive consumption of finite and non-renewable fossil fuels have driven people to hunt for clean and regenerable energy sources, and highly efficient energy conversion and storage techniques for sustainable development of

A wood sponge modified by rGO showed desired photothermal conversion efficiency and its temperature can reach 88 °C quickly and absorb above 7 times its own The above results indicated that the prepared PU/MCS/MA exhibits desired photothermal conversion, energy storage and heat release capacity and is an ideal

1. Introduction. The depletion of fossil fuels and the soaring global energy demand have compelled humanity to explore renewable energy sources [1], [2], [3].Solar energy, known as clean and inexhaustible, emerges as one of the most promising options in developing renewable technologies for energy conversion and storage [4], [5], [6].Photo-thermal

Enormous challenges still seriously restrict the application of phase change materials (PCMs) in thermal energy storage and heat management systems, such as their leakage, low thermal conductivity, and low photothermal conversion efficiency.We reported an effective strategy for the morphology-controlled synthesis of the composite

The photothermal conversion efficiency of the material is 66.82%. The photothermal conversion efficiency of RTPCMs-C3 and RTPCMs-O3 is 55.4% and 72.9%, respectively, indicating that the thermochromic microcapsules can maintain a high conversion efficiency in addition to temperature-sensitive discoloration.

The photothermal conversion and storage efficiency of HDA/PCMPCAs composites at 100 mW/cm 2 was calculated to be 93.5% for HDA/PCMPCA-1, 90.3% for HDA/PCMPCA-2 and 89.5% for HDA/PCMPCA-3, respectively. The comparison of photothermal conversion efficiency (η) between PCMPECAs/HDA

Principles of coupling solar photon and thermal fields underlying photothermal effect, exploration of efficient nanocatalysts and their design strategies,

Thus, it is of great significance to develop adsorptive materials with simultaneous photothermal conversion and thermal energy storage ability for efficient utilization of solar energy. Phase change materials (PCMs) can store and release latent heat to regulate the temperature of system [31,32].

Meanwhile, the as-synthesized FAs/CMs composites also exhibit a remarkable high photothermal energy storage efficiency of up to 93.8%, which is one of the highest values reported to date, making them promising candidates for a broad range of applications in solar energy harvesting, conversion, and storage.

The photothermal conversion efficiency (γ) is calculated as the ratio of the latent heat-storage energy to the solar irradiation energy throughout the phase-change process as follows [10]: (4) γ (%) = m Δ H m A P Δ t × 100 where m is the mass of the samples, Δ H m is the melting enthalpy of the samples, Δ t is the time for the sample to

The photothermal conversion efficiency and peak temperature of PA/SEBS/CNT-8 % and PA/SEBS/CNT-10 % samples within 1500s were separately compared Flexible textiles with polypyrrole deposited phase change microcapsules for efficient photothermal energy conversion and storage. Sol. Energy Mater. Sol. Cells,

So this thermal energy storage wood with high photothermal conversion ability provides a new solution for efficient utilization of solar energy

The photothermal conversion efficiency of the prepared fabrics was calculated by the following equation In this work, smart thermoregulatory textiles with thermal energy storage, photothermal conversion and thermal responsiveness were woven for energy saving and personal thermal management. Sheath-core PU@OD

The photothermal conversion experiment was conducted at a constant light intensity of 120 photothermal conversion at a constant light intensity of 120 mW/cm 2. The temperature-time curves of CA-BN-1, PCM-BN-1 and SA-CA in the photothermal conversion process are shown in Fig. 7 (d), showing that the temperatures of the three

Herein, novel PCM composites (CMPCMs) with good structural stability, improved photothermal conversion efficiency, and superior energy storage density

The photothermal conversion efficiency of nanocapsules was up to 92.1%. and thermal reliabilities were characterized. Finally, the photothermal energy conversion and storage performance were measured using a simulated sunlight device combined with an infrared camera. The phase change nanocapsules incorporated with

The articulated strategy attained phase-change enthalpies of about 124.15 J/g, with a differential temperature of 28.88 ± 0.22 °C achieving a magnified photothermal energy conversion efficiency of 96.20% due to the broadband solar spectrum absorbance and effective light to heat conversion through the electron-hole generation and non

To evaluate the photothermal conversion ability of samples, the photothermal conversion storage efficiency (χ) of the sample was evaluated by the formula [40], [41], [42]: (1) χ = m Δ H I S T r-T c × 100 % Where S represents the surface area of the sample; T r and T c represent the termination and start time of the phase

The photothermal conversion and storage mechanism of the ND/SiO 2 NEPCM is illustrated in Fig. 9, primarily attributed to the thermal vibrations of molecules combined with the optical confinement effect of the ND/SiO 2 hybrid shells, as well as the phase change thermal energy storage capacity provided by n-Octadecane. In brief,

7 · Solar photothermal conversion and energy storage systems can effectively solve the imbalance between the supply and demand of solar energy utilization in space and time. However, there are still significant challenges, such as the prevalence of low photothermal conversion efficiency, low thermal conductivity, low energy density,

Compared with PA, MPN@PA has good light absorption capacity and photothermal conversion and heat storage performance. With the increase of the shell-core ratio, the photothermal conversion and heat storage performance of MPN@PA are improved, and the photothermal conversion and heat storage efficiency of MPN@ PA

Photothermal conversion phase change materials can combine the mechanisms of photothermal conversion and phase transformation to realize storage or

This paper presents the synthesis of composite PCMs that exhibit high-efficiency direct photothermal conversion and storage owing to dual-functional

The prepared composites with excellent shape stability present favorable thermal energy storage in photothermal conversion and thermal modulation technologies. Li et al. [7] synthesized a highly innovative conductive and photothermal phase change composite (PCC) by vacuum impregnation using a modified carbon black as a substrate.

Pristine organic phase change materials (PCMs) are difficult to complete photothermal conversion and storage. To upgrade their photothermal conversion and storage capacity, we developed Fe-MOF (metal-organic framework) derived Fe 3 O 4 /C-decorated graphene (GP) based composite PCMs toward solar energy harvesting.