牛津大学获得拨款开发37%效率的全钙钛矿太阳能电池

牛津大学获得拨款开发37%效率的全钙钛矿太阳能电池

2018-09-28  轉載自:  https://www.china5e.com/news/news-1040687-1.html

英国钙钛矿太阳能公司-牛津光电科技公司(Oxford PV)日前表示，其和牛津大学之间的合作伙伴关系已获得英国政府拨款，用于开发全钙钛矿太阳能电池，这是一个为期五年的研究项目。

该预算500万英镑(660万美元/560万欧元)项目的目标是开发一种薄膜多结钙钛矿太阳能电池，目标是达到37%的效率和长期稳定性。
工程和物理科学研究委员会(EPSRC)已经授予该项目250万英镑，作为其繁荣伙伴计划的一部分。其余的项目资金由牛津光电科技公司提供。
牛津光电科技公司的首席技术官Chris Case说，公司的商业重点仍然是其双端钙钛矿-硅串联太阳能电池技术。该公司目前正在试验生产线上生产商用尺寸的钙钛矿硅串联太阳能电池。
Case还说，从长远来看，为光伏行业提供低成本的太阳能电池技术，使其能效达到近40%的水平，这是一个令人兴奋的前景，将进一步改变全球太阳能发电，帮助推动世界走向全电动的未来。
(原文来自：可再生能源速递 中国新能源网综合)

Oxford PV, Oxford University target 37% efficient perovskite solar cells

The solar company has launched a five-year research project with the British scientists, which has been funded with £2.5 million from the U.K. Government. The goal is to develop a thin film multi-junction perovskite solar cell with a 37% efficiency and long-term stability.
September 26, 2018 Sandra Enkhardt   
https://www.pv-magazine.com/2018/09/26/oxford-pv-oxford-university-target-37-efficient-perovskite-solar-cells

Oxford PV and the University of Oxford have secured funding for a £5 million research project from the British Government. The two entities were selected to work together to develop a thin film multi-junction perovskite solar cell. They aim to reach a cell efficiency of around 37% and improve the long-term stability of the device.
The research project is expected to run for five years and receive £2.5 million from the government’s Engineering and Physical Sciences Research Council (EPSRC). The other 50% has been invested by Oxford PV.
The EPSRC program is designed to promote long-term, research-based partnerships between companies and universities. As part of the collaboration, partnerships with various research groups, including those for photovoltaics and opto-electronic devices, are planned. This is led by Henry Snaith at the University of Oxford, who is also chief developer and co-founder of Oxford PV.
“Oxford PV’s industrial focus remains strong on the completion of perovskite silicon tandem solar cell technology,” said Chris Case, CTO of Oxford PV. The PV manufacturer, which aims to commercialize this technology in a factory in Brandenburg, eastern Germany, has made significant progress in this regard. “At present, commercially produced perovskite silicon tandem solar cells are being produced on our pilot line, and we are optimizing the equipment and processes to prepare mass production,” Case continued.
The project with the University of Oxford should open new paths. “Longer term, providing the PV industry with a low cost solar cell technology that could reach an efficiency level of nearly 40%, is an exciting prospect that would further transform global solar energy generation – helping drive the world toward an all-electric future,” said Case.
In June, Oxford PV announced a new efficiency record of 27.3% for its perovskite silicon tandem cells. With this technology, the it also wants to achieve efficiencies of more than 30% in the near future.

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我国科学家在钙钛矿太阳能电池领域取得重要突破

 2018-07-26  轉載自:  http://www.jxstc.gov.cn/html/1400/2018-07-26/content-10426.html

     钙钛矿太阳能电池以其制备简单、成本低和效率高的优势在新型光伏技术领域迅速崛起。钙钛矿太阳能电池按照器件结构可分为正式和反式两种结构，相比于正式结构，反式结构器件因制备工艺更加简单、可低温成膜、无明显回滞效应、适合与传统太阳能电池（硅基电池、铜铟镓硒等）结合制备叠层器件等优点，受到学术界和产业界的关注。但仍然存在开路电压与理论值差距较大、光电转换效率仍然偏低等应用瓶颈。
    在纳米研究国家重大科学研究计划（2015CB932200，钙钛矿型太阳电池的基础研究）的支持下，北京大学朱瑞研究员、龚旗煌院士与合作者展开研究，针对反式结构钙钛矿太阳能电池在光电转换效率上存在的瓶颈，提出了“胍盐辅助二次生长”方法，开创性地实现了钙钛矿薄膜半导体特性的调控，显著降低了器件中非辐射复合的能量损失，在提升器件开路电压方面取得了突破，首次在反式结构器件中获得了超过1.21V的高开路电压（材料带隙宽度~1.6eV）。同时，在不损失光电流和填充因子等性能参数的情况下，显著提高了反式结构钙钛矿电池的光电转换效率—实验室最高效率达到21.51%。经中国计量科学研究院认证，器件的光电转换效率高达20.90%，是目前反式结构钙钛矿太阳能电池器件效率的最高记录。该结果为提升反式钙钛矿太阳能电池器件效率、推进该类新型光伏器件的应用化发展提供了新思路，可进一步拓展到钙钛矿叠层太阳能电池以及钙钛矿发光器件中，具有潜在的应用前景和商业价值。相关成果6月29日在线发表在《科学》杂志上。