Schematic diagram of the principle of photothermal capacitor

What is photothermal characterization with traditional thermometric techniques?

(a) Schematic diagram of typical photothermal characterization with traditional thermometric techniques. The heating and cooling processes are controlled by switching on and off the laser and monitored with mercury thermometers or thermocouples. The macroscopic temperature distribution can be imaged with an IR camera.

How do you calculate photophysical processes of photothermal conversion?

In terms of the photothermal materials, the photophysical processes of photothermal conversion in Fig. 2 a could be quantitatively provided as Eq. (1): (1) Q = φ IC · ∫ I 0 λ · 1 − 10 − ε λ c l d λ Where I 0 λ and ε λ are the light intensity and extinction coefficient of molecules at a given wavelength λ, respectively.

Why is photothermal catalysis a novel method to decompose water?

Besides this, the rate of desorption of products H 2 and O 2 on the catalyst surface becomes a kinetic limiting factor. To solve the above problems, photothermal catalysis becomes a novel method to decompose water. It is shown that the photothermal catalysis method can reach an efficient hydrogen production rate (Table 4).

Can photothermal absorbers generate thermoelectric power?

The generation of thermoelectric power at the interface of the photothermal absorbers and the bulk water has been reported (Figure 19 a). (459) A shape-conforming 3D organic sponge is fabricated for solar evaporation and integrated with thermoelectric modules for electricity generation.

Is photothermal catalysis a gas-phase reaction?

However, most of the conventional CO 2 hydrogenation to CH 4 is a gas-phase reaction, requiring a high reaction temperature (250–450 °C) with a lower selectivity and more by-products . Photothermal catalysis is capable of effectively collecting solar energy and reducing the harshness of the reaction conditions.

What is photothermal conversion & thermoresistive response?

Materials that combine photothermal conversion with thermoresistive response have enabled the construction of sensors capable of converting light signals into thermal signals and then into electric signals. For example, ILs, as a kind of fluid semiconductors, become more conductive as the temperature rises.