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我国研究团队成功制备大面积铜锌锡硫硒薄膜光伏组件_我的网站

A |           　　记者从中国科学院物理研究所获悉，该所孟庆波研究员团队成功制备出大面积铜锌锡硫硒薄膜光伏组件，组件光电转换效率达到13.0%，刷新了该类组件效率的世界纪录，为下一代低成本、环境友好型太阳能电池产业化奠定了坚实基础。该成果近日在国际学术期刊《自然·材料》发表。

B |     Shares of Pfizer are in retreat on the first day of trading after the drug company said sales of its COVID-19 vaccine and its coronavirus treatment are weaker than it had expected and cut revenue projections by $9 billion for the year. Falling sales of both clipped sales in the second quarter, but Pfizer said in August that it expected a rebound in the second half of 2023. Shares of Pfizer slipped more than 1% before the opening bell Monday and Moderna, which is heavily reliant on the competing vaccine it makes, slid nearly 5%. Pfizer said Friday that global usage of Paxlovid is trending slightly above last year, but that it's still below expectations.The fall vaccination period just began and the New York City drugmaker said that it's too soon to get a handle on vaccination rates for the year.Full-year revenue for Paxlovid and Comirnaty is expected to be approximately $12.5 billion, short $9 billion of what it had expected. Pfizer is lowering its full-year revenue expectations for Paxlovid by approximately $7 billion. That number also accounts for delayed commercialization of the product, which was pushed to January 2024 from the company's previous expectation of commercialization in the second half of this year. Pfizer is also lowering its 2023 revenue expectations for Comirnaty by approximately $2 billion due to lower-than-expected vaccination rates.Pfizer Inc. now foresees 2023 revenue in a range of $58 billion to $61 billion, down from its prior forecast for $67 billion to $70 billion. It now projects full-year adjusted earnings between $1.45 and $1.65 per share due to lower-than-anticipated revenue for COVID-19-related products and inventory write-offs.That is short of the full-year revenue of $63.61 billion and earnings of $2.77 per share that Wall Street was expecting, and far short of the company's previous projections of per-share earning between $3.25 and $3.45. JPMorgan said the company's update solves an ongoing U.S. Paxlovid inventory debate and it anticipates the company's bigger-than-expected cuts to its sales projections will help put a floor under per-share earnings expectations for next year.。

C |      　　铜锌锡硫硒是一种新型薄膜光伏材料，由铜、锌、锡等地球储量丰富、价格低廉且环境友好的元素组成，被认为是下一代可持续太阳能电池的重要方向，但是这种新型薄膜光伏材料的器件尺寸一旦放大，薄膜均匀性就会急剧下降，效率也会降低。为此，科研团队从分子尺度入手，引入甲酰胺来精准调控金属离子与有机分子的配位结构，成功解决了这一问题。      △基于涂布的铜锌锡硫硒薄膜光伏组件及其光电转换性能      　　在此基础上，科研团队开发出适合大面积连续生产的溶液涂布工艺，在10平方厘米的基板上制得了高度均匀的铜锌锡硫硒薄膜。用这块薄膜做成1平方厘米的小面积电池，认证效率可达14.2%;通过激光划线做成6节子电池串联、总面积10.5平方厘米的组件认证效率仍可达到13.0%。     　　据了解，这项技术为低成本、绿色薄膜光伏组件的规模化制造提供了新思路。

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