Unlocking Stability and Sustainability in Perovskite Solar Cells through Multiscale Bio-Inspired Strategies

A research team from the Hong Kong University of Science and Technology has introduced bio-inspired multiscale design strategies to address operational stability challenges in perovskite solar cells. The approaches leverage insights from biological structures to enhance efficiency, resilience, and adaptability. Strategies span molecular, microscale, and device levels, including crystallization control, self-healing, interfacial reinforcement, and functional structures inspired by nature. These advancements aim to improve the commercial viability of perovskite solar cells and lower solar energy costs.

Perpetua Resources (PPTA.O) Sees Sharp Intraday Surge

Perpetua Resources (PPTA.O) experienced a significant intraday surge of over 7.65% on July 25, 2025, but no clear technical or fundamental catalyst was identified [1]. Despite the sharp move, major technical patterns such as inverse head and shoulders, head and shoulders, double top, and double bottom were not activated. Indicators like the Relative Strength Index (RSI) did not hit oversold levels, and there were no golden or death cross signals in the MACD or KDJ indicators. The trading volume was elevated but not abnormally high, and there were no signs of block trading or significant order-flow clusters. The mixed performance of related theme stocks suggests that the rise in PPTA.O was not part of a broader market or sector trend. The most plausible explanations for the sharp move are a short-term sentiment shift or a short squeeze, particularly if short interest was high.

Nova Minerals (NVA) Advances Estelle Project with Government Support

Nova Minerals (NVA) reported substantial progress at its Estelle Gold and Critical Minerals Project in Alaska, with nearly 10 million ounces of gold and significant antimony deposits identified [2]. The project has garnered strong support from state leaders, federal representatives, and local stakeholders. Nova's Board of Directors visited the site and held meetings with key stakeholders, including representatives from U.S. Senators Lisa Murkowski and Dan Sullivan's offices, and U.S. Representative Nick Begich. The Matanuska-Susitna Borough also provided strong backing, with over 25 Alaskan leaders attending a reception at Port MacKenzie. Nova's alignment with Executive Order 14153, which aims to increase American mineral production, has positioned the company favorably. The project's strategic potential, including antimony for national defense applications, has attracted interest from the Department of Defense. The company's engagement with tribal organizations and bipartisan political support suggests a fast-track regulatory pathway, potentially accelerating permitting timelines. These strategic advancements position Nova as a key player in securing domestic supply chains for critical materials.

References:
[1] https://www.ainvest.com/news/perpetua-resources-ppta-sees-sharp-intraday-surge-clear-technical-fundamental-catalyst-2507/
[2] https://www.stocktitan.net/news/NVA/nova-powers-forward-at-estelle-with-strong-0m91a5xr01ne.html