Transparent solar cell (TSC) is a new type of device that combines the advantages of transparency and photoelectric conversion, and is expected to be used in portable electronic devices, vehicles or buildings. Therefore, factors such as flexibility, color perception, and efficiency must be considered. Existing TSC batteries are mostly based on perovskite, organic matter, amorphous silicon and dyes, but the rigidity of the material or the transparency of the coloration limits its application to a large extent.
According to foreign media reports, researchers at the Ulsan National University of Science and Technology (UNIST) in South Korea have developed a transparent, flexible, efficient and even stretchable solar cell. Based on the silicon microwires integrated into the transparent polymer matrix, the researchers effectively used independent thin films to create transparent solar cells. A transparent conductive film is provided on the bottom of the battery; and on the top of the device, a heterojunction is formed between the p-type polymer semiconductor and the n-type silicon. Adjust the transparency of the device by adjusting the distance between the microwires, between about 10% and 55%.
According to the test, under the bending state or after the cyclic bending test, the battery performance remains unchanged, and no significant decrease occurs. This shows that TSC batteries have excellent flexibility. In this study, transparent, stretchable independent microwire array / polymer composite films laid the foundation for the future development of TSC batteries.
However, in standard TSC batteries, in order to achieve transparency, efficiency must be sacrificed, and it is difficult to obtain high performance. To solve this problem, the researchers proposed a new method. Researchers say that solar cells basically generate electricity by absorbing light. Therefore, how to maintain battery transparency while achieving high performance is very challenging. They discovered the absorption mechanism inside the silicon microwire array and developed a new microwire morphology that can control the optical path. "As a result, we succeeded in improving the light absorption capacity. In transparent solar cells, this helps to generate photo-generated current and maintain the transparency of the cell."
This transparent solar cell is made of independent thin-film materials based on advanced light absorption technology. With a visible transparency of 10%, the power conversion efficiency can reach more than 8%. It can be compared with the most advanced organic and perovskite-based The color transparent solar cells are comparable. Researchers said: "These devices are based on silicon wafers. In the silicon solar cell market, silicon wafers have been widely used. Therefore, this rugged, ultra-light and flexible platform is feasible and is expected to be put into practical use in the future. become commercialized transparent solar cells. "(author: Elisha)
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Max Stainless Steel manufactures stainless steel tubes in the following alloys:
|
Alloy |
UNS |
WNR |
|
304 |
S30400 |
1.4301 |
|
304L |
S30403 |
1.4306 |
|
310 |
S31000 |
1.4845 |
|
316 |
S31600 |
1.4401 |
|
316L |
S31603 |
1.4404 |
|
316LN |
S31653 |
1.4429 |
|
316Ti |
S31635 |
1.4571 |
|
316LVM |
S31673 |
1.4441 |
|
317L |
S31703 |
1.4438 |
|
321 |
S32100 |
1.4541 |
|
347 |
S34700 |
1.4550 |
|
17-4PH |
S17400 |
1.4542 |
|
904L |
N08904 |
1.4539 |
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