A research team at the School of Engineering of the Hong Kong University of Science and Technology (HKUST) have revealed the existence of surface concavities on individual crystal grains of perovskite thin films while unraveling their effects on the film’s properties and reliability.
To address issues surrounding the long-term stability of perovskite devices under light, humidity and thermomechanical conditions, the group conducted research focused on the materials’ microstructure. They discovered a proliferation of surface concavities at the crystalline grains of the perovskite material, shown to break the structural continuity at the perovskite film interface.
The team concluded that the broken structural continuity serves as a hidden microstructure factor limiting the efficiency and stability of perovskite cells. Based on this discovery, the team says it has pioneered a way of making these cells more efficient and stable via a chemo-elimination of these grain surface concavities.
“Structure and geometry of individual crystalline grains are the origin of the performance of perovskite semiconductors and solar cells,: says HKUST’s Prof. Zhou Yuanyuan, the corresponding author of the work.
“By unveiling the grain surface concavities, understanding their effects and leveraging chemical engineering to tailor their geometry, we are pioneering a new way of making perovskite solar cells with efficiency and stability toward their limits.”
The team’s research work, a collaboration with Hong Kong Baptist University and Yale University, is entitled “Elimination of Grain Surface Concavities for Improved Perovskite Thin-Film Interfaces. It was published in the journal Nature Energy.
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HKUST Engineering Researchers Increase Perovskite Solar Cell Reliability
Glenn Close is what Donald Trump would call a “woke celebrity.” Yet what he’s deliberately ignoring is that he has virtually zero support from the entertainment industry.
Sure, you can find an occasional Clint Eastwood or James Woods. But for every one of them, you’ll find perhaps a dozen intelligent and kind people like Close who deeply resents Trump’s attempts to steal democracy from the American people and the rest of the civilized world.
I’m no expert on political demographics, but is strikes me that someone like, say Jodie Foster, who could read at age three and graduated from Yale magna cum laude, probably sees life differently from the MAGA base of carrot farmers, truck drivers, and appliance repairmen.
Most Americans who have the means to travel have rented a car in Paris and driven it all over France. I happen to be the first Avis renter to pick up a car at Heathrow and take it through the Chunnel on my way to Paris, on my way to Stuttgart in western Germany.
How much French do I know? Close to zero. I don’t even know the French word for “zero.’ Was I a menace to the French? Doubt it.
This strikes me as pure MAGA racism. It’s an appeal to punish people with brown skin, or preferably, take them and their little children into detention and ultimately deport them. The more pain, the better.
Will You Be Safer if Non-English-Speaking People Can’t Drive?
Today’s America admires the rich, and we have no problem if our leaders are sociopathic rapists.
The more damage they do to the common U.S. citizen, the more we love them.
All they really need to do in order to retain our adoration is to continue to punish people with brown skin and give tax breaks to billionaires.
Quality education, healthcare, protecting our environment, and affordability are all issues for woke communists and sissies.
https://www.2greenenergy.com/2026/08/12/is-trump-the-greatest-president-ever/
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