The world's most efficient solar cells, used in space satellites
Photo: MicroLink devices

The US Department of Energy (DOE) has just given the green light for the commercialization of what are considered to be the most efficient solar cells in the world. These are IMMs (inverted metamorphic solar cells), used for space satellites and solar planes, which will now be marketed by the company MicroLink Devices, which could offer solutions with a power greater than 3000 W / kg.

Patented by the National Renewable Energy Laboratory in the United States, the NREL, these cells are distinguished by their high efficiency and significant cost savings compared to other current technologies on the market. This is stated by the US Department of Energy in a Release in which he disclosed the deal he had made with the Illinois-based company.

Thus, the decision marks the starting point of a supposed process “Open the door to new applications” IMM, as provided by the DOE. And it is that, with its solar technology, the muscle to thrive is not lacking. Not in vain, these cells are considered the most efficient, among other aspects due to a design that allows them to capture energy from a larger part of the solar spectrum. “They are very efficient and extremely versatile”, they underline from the American administration.

For this, the cell creation phase has been completely redesigned. So much so that IMMs reverse the usual sequence of triple junction cells, reducing production costs, among other strengths. One of the most notable is the ease with which IMM cells allow the addition of a reflector, which is particularly useful for concentrating solar PV systems where heat build-up can be a problem for equipment. So, with NREL’s proprietary technology, not only would the system stay cool, but the energy could be redirected to increase cell efficiency.

To these aspects is added another key advantage: the reduction in the weight of the solar cells which allows the architecture of the IMM. This aspect makes this technology an ideal solution for applications where this aspect is essential, such as unmanned aerial vehicles powered by solar energy.

With the industry interest almost over, MicroLink Devices will now turn to producing thin, light and flexible solar cells that could be used, in addition to special satellites and solar aerial vehicles, in any portable application for production. clean energy.