How do solar-selective absorbers affect photothermal efficiency?

The performance of solar-selective absorbers with maximum absorption in the solar spectrum and suppression of heat loss in the infrared region directly determines the optimal photothermal efficiency, which implies that achieving high solar absorptance (α) and low thermal emittance (ε) favors the final conversion efficiency.

Can solar absorbers improve photothermal conversion efficiency?

The growing attention in solar energy has motivated the development of a highly efficient solar absorber. Under a certain light concentration, increasing the solar spectral absorption of solar absorbers can improve the photothermal conversion efficiency.

Why do we need a solar absorber?

The growing attention in solar energy has motivated the development of a highly efficient solar absorber. Under a certain light concentration, increasing the solar spectral absorption of solar abso...

What is the difference between a solar absorber and a IR absorber?

In the IR range of 2.5–30 μm, both show high reflectance, corresponding to a low absorption. In other words, both designed absorbers achieve selective absorption of the solar spectrum.

Can small molecule donors improve the performance of organic solar cells?

In the last few years, there have been notable developments in organic solar cells using both small molecule donor and acceptor. It has been noted that adding halogens to the end groups of small molecules could enhance the film structure and, consequently, the performance of the devices. In this study, three novel small molecule donors are created.

Are Dybo-based organic solar cells stable?

The origins of the excellent photovoltaic performance and stability of DYBO-based OSCs are elucidated. The power conversion efficiencies (PCEs) of small-molecule acceptor (SMA)-based organic solar cells (OSCs) have increased remarkably, but their long-term stability is insufficient for commercialization.