
Zinc porphyrin dyes were used to create solar cells that can absorb both visible and near-infrared light.
via: A*STAR Institute of Materials Research and Engineering
Dye-sensitized solar cell absorbs a broad range of visible and infrared wavelengths
Dye-sensitized solar cells (DSSCs) rely on dyes that absorb light to mobilize a current of electrons and are a promising source of clean energy. Jishan Wu at the A*STAR Institute of Materials Research and Engineering and colleagues in Singapore have now developed zinc porphyrin dyes that harvest light in both the visible and near-infrared parts of the spectrum1. Their research suggests that chemical modification of these dyes could enhance the energy output of DSSCs.
DSSCs are easier and cheaper to manufacture than conventional silicon solar cells, but they currently have a lower efficiency. Ruthenium-based dyes have been traditionally used in DSSCs, but in 2011 researchers developed a more efficient dye based on a zinc atom surrounded by a ring-shaped molecule called a porphyrin. Solar cells using this new dye, called YD2-o-C8, convert visible light into electricity with an efficiency of up to 12.3 per cent. Wu’s team aimed to improve that efficiency by developing a zinc porphyrin dye that can also absorb infrared light.
The most successful dyes developed by Wu’s team, WW-5 and WW-6, unite a zinc porphyrin core with a system of fused carbon rings bridged by a nitrogen atom, known as an N-annulated perylene group. Solar cells containing these dyes absorbed more infrared light than YD2-o-C8 and had efficiencies of up to 10.5 per cent, matching the performance of an YD2-o-C8 cell under the same testing conditions.
Read more . . .
The Latest on: Dye sensitized solar cell
via Google News
The Latest on: Dye sensitized solar cell
- UC Berkeley: The Frontiers Of Knowledge Award Goes To Paul Alivisatos And Michael Grätzelon February 24, 2021 at 7:17 pm
The BBVA Foundation Frontiers of Knowledge Award in the Basic Sciences category has gone in this thirteenth edition to Paul Alivisatos (University of California, Berkeley, United States) and Michael ...
- Paul Alivisatos and Michael Grätzel win the Frontiers of Knowledge Award in Basic Scienceson February 24, 2021 at 7:09 am
"Grätzel's groundbreaking work includes the invention of a dye-sensitized solar cell named after him," reads the committee's citation, while "Alivisatos has made pioneering contributions in using ...
- Researchers Develop New Indoor Solar Cells for Smart IoT Deviceson February 23, 2021 at 4:00 pm
The solar cells, which were developed using dye-sensitized materials, can convert up to 34 per cent of visible light into electricity to power IoT sensors, researchers said. Dye-sensitized materials ...
- Making Solar Cellson February 22, 2021 at 4:00 pm
We will admit that it is unlikely you have enough gear in your basement to make a solar cell using these steps. However, it is interesting to see how a bare silicon wafer becomes a solar cell.
- Perovskite Solar Cells Are Just About Ready for Prime Timeon February 17, 2021 at 4:00 pm
Perovskites are a natural successor to dye-sensitized thin-film solar cells that they potentially could replace, offering the potential for cheaper manufacturing and higher efficiencies, said Tyler ...
- Plastic Solar Cell Marketon February 16, 2021 at 11:34 pm
Allied Market Research published a new report, titled, "Plastic Solar Cell Market by Type (PN Junction Structure (P-N Heterojunction), Dye-Sensitized Nanocrystalline Solar Cells), Application ...
- Enhanced performance of dye-sensitized solar cells with Y-shaped organic dyes containing di-anchoring groupson February 13, 2021 at 7:49 am
Two new Y-shaped D-π-(A)2 type phenothiazine-based dyes (ZJA2 and ZJA3) were designed and synthesized for dye-sensitized solar cells (DSSCs). Compared to the single D-π-A analogue dye ZJA1, the ...
- Synthesis of Dyes for Dye-Sensitized Solar Cellson February 11, 2021 at 4:00 pm
At the University of New Haven, the health and safety of all members of our community remain our top priority. We have reimagined life at the University to help deliver high-quality education in as ...
- Global Photovoltaic (PV) Materials Market Is Expected to Reach USD 33.20 billion by 2027 : Fior Marketson February 4, 2021 at 7:12 am
Expanding production of solar cell modules helps to get attention for photovoltaic materials. The increasing demand for organic photovoltaic and dye-sensitized solar cells is anticipated to have a ...
- Self-powered textile for wearable electronics by hybridizing fiber-shaped nanogenerators, solar cells, and supercapacitorson February 2, 2021 at 4:00 pm
Both of the harvested energies can be easily converted into electricity by using fiber-shaped dye-sensitized solar cells (for solar energy) and fiber-shaped triboelectric nanogenerators (for random ...
via Bing News