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We had two topics with "solar" and "cell" in the title, but neither was about the technology in general.
This topic is offered for NewMars members who might wish to add to a collection of knowledge about solar cells.
The topic is inspired by another report of promising research at a national level.
There will be more such announcements in the future, if all goes well.
This topic can include solar cells designed to accept infrared photons, as reported by Void in September of 2026.
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Post #3: Report on Chinese research and delivery of 24% efficiency
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This post is about Chinese research, and demonstration of 24% efficiency of a particular kind of solar cell.
Chinese researchers set 24% efficiency world record for large perovskite solar module
Morgan Taylor
Thu, September 3, 2026 at 4:27 PM EDTChinese researchers set 24% efficiency world record for large perovskite solar module
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perovskite contained information topics
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This post is about basic research ...
The article at the link below is about "hot" electrons that are currently wasted because existing conversion structures cannot harness them.
The research investigates the possibility some of these "hot" electrons might be harnessed, but this is at the bleeding edge of technology and it may never find it's way into products.
https://www.yahoo.com/tech/science/arti … 00685.html
Netherlands scientists say 'hot electrons' could help solar panels beat 33% efficiency cap
Vivian Tran
Sun, September 20, 2026 at 11:51 PM EDT
Netherlands scientists say 'hot electrons' could help solar panels beat 33% efficiency capFor solar panels, a basic limit from physics has long set expectations: conventional designs top out at roughly one-third of sunlight converted to electricity.
A research team in the Netherlands says some of the energy normally shed almost immediately as heat might instead be captured, hinting at a way past that benchmark.
In work published in ACS Energy Letters, University of Groningen scientists said so-called hot electrons in solar cells can hold onto surplus energy much longer than researchers had assumed, a result that could support more efficient devices.
Sunlight powers a solar cell by transferring photon energy to electrons, putting them into an excited state that contributes to voltage. The catch comes with the highest-energy photons — they produce hot electrons with extra energy, and standard solar materials usually dump that surplus as heat within picoseconds.
"This means that the energy is lost before the hot electron exits the solar cell material," said Jan Anton Koster, professor of physics of novel semiconductors and devices at the University of Groningen.
If researchers can convert more of that wasted energy into usable power, it could eventually make solar even more cost-effective. For homeowners, going solar is already one of the best ways to save money on home energy, and platforms such as EnergySage let users get free installation estimates and compare quotes.
A tin-based perovskite created by Maria Antonietta Loi, professor of photophysics and optoelectronics at the University of Groningen, stretched that brief period from picoseconds into nanoseconds — about a 1,000-fold increase. To understand the unexpected slowdown, Koster and doctoral student Tim Faber turned to simulations.
Modeling suggested the extended lifetime is not caused by a single effect. In the perovskite, the team found that two mechanisms seem to combine to slow the loss of hot-electron energy, including a "hot phonon bottleneck" in which nearby heat can be reabsorbed by the electrons.
"The measurements were clear, but we didn't understand the physics behind this," Koster said, and the mismatch between the data and the explanation became so troubling that "we even started to doubt the measurements ourselves."
What's being done?
This work is still in the research stage, but it points to a practical goal: solar cells that waste less of the sunlight they capture.
"When we added this well-known process called hot phonon bottleneck to the simulations, it slowed the loss of energy, but not enough to explain our measurements," Koster said.Where can I learn more?
These articles look at higher-efficiency solar materials, record-setting cell designs, and ways to make perovskites more durable.
• Scientists improved the interface in tandem cells, boosting perovskite-silicon solar efficiency and durability.
• Scientists found promising results in kesterite, a next-gen material for more effective panels.
• Researchers showed performance can be significantly enhanced in tin perovskites, strengthening a lead-free solar alternative.
• Scientists added an innovative 2D layer, helping perovskite solar cells last longer.
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