Using optical discs to generate solar power

Researchers at Northwestern University have hit upon a way to give Blu-ray discs a second chance at usefulness: They make excellent molds for imprinting solar cells with quasi-random nanostructures. [pdf]

FAQS about Using optical discs to generate solar power

Can a Blu-ray Disc help solar cells absorb sunlight?

The Northwestern researchers have demonstrated that a Blu-ray disc’s strings of binary code 0s and 1s, embedded as islands and pits to store video information, give solar cells the near-optimal surface texture to improve their absorption over the broad spectrum of sunlight.

Could old Blu-ray movie discs make solar cells more efficient?

As it turns out, old Blu-ray movie discs can be turned into something other than just colorful drink coasters: their semi-reflective surfaces may be the key to making more efficient solar cells. This discovery was made by engineers from Northwestern University and published in the journal Nature.

How BR disc can be used for solar panels?

In this paper we propose a solar panel using Blu-Ray (BR) disc. BR disc is mainly used for high data storage purpose but it also can be used for light trapping. By using the light trapping from sun rays we regulate the electrons from the BR disc. The regulated electrons flow through the copper coil which is connected to Zener diode.

Can Blu-ray discs be recycled into solar panels?

While it’s certainly appealing to think about recycling our Blu-ray discs directly into more efficient solar panels, a more realistic approach might be to use the mass-production infrastructure that’s already in place to create optical media that’s adapted to improving solar cell performance.

Can Blu-ray patterned solar cells be used for light trapping?

The overall broadband absorption enhancement of a Blu-ray patterned solar cell was measured to be 21.8 percent, the researchers report. “In addition to improving polymer solar cells, our simulation suggests the Blu-ray patterns could be broadly applied for light trapping in other kinds of solar cells,” Sun said.

Does a Blu-ray imprinted solar cell increase power conversion efficiency?

When comparing the results for the Blu-ray imprinted solar cell to a non-patterned solar cell, the Blu-ray imprinted cell showed a 21.8% increase in light absorption over the entire solar spectrum, leading to an 11.9% increase in power conversion efficiency.

Using air conditioners as solar generators

Overall, a solar generator can power an AC unit as long as it’s within the power output range of the solar generator. Small AC units are ideal for use with solar generators since most air conditioners require significant amounts of power to run. As a general rule, there are three aspects that help determine if a solar. . An AC unit running at 500W of power for 30 minutes every hour consumes 6,000Wh of energy in a 24-hour period. In this case, a solar generator with 5,000Wh of batteries and 1,000. . The AC300+B300 is one iteration of this solar generator system. You can add more batteries and a second AC300 power module together to have a completely off-grid system to power your AC. Depending on your air conditioner,. . The Titan is a highly versatile portable solar generatorbecause it’s built with some of the most efficient, quality components available in the solar energy industry. It has two MPPT charge. . The Delta Pro is one of the most popular large solar generator systems currently available. It can also be customized for several different needs,. [pdf]

Using solar energy to generate electricity and keep warm

Solar thermal technologies can be used for water heating, space heating, space cooling and process heat generation. In 1878, at the Universal Exposition in Paris, successfully demonstrated a solar steam engine but could not continue development because of cheap coal and other factors. [pdf]