Recently, the top international academic journal Nature published the heavyweight scientific research achievements of Trina Solar! Gao Jifan, Director of the National Key Laboratory of Photovoltaic Science and Technology and Dean of the Central Research Institute of Trina Solar, led a research team to collaborate with Professor Zhang Hong's team from Fudan University and Professor Yao Huifeng's team from Southeast University to achieve significant breakthroughs in the field of perovskite/perovskite/crystalline silicon triple junction solar cells. This is also the first time Trina Solar has published research papers in Nature as the first communication unit. As of now, the company has published a total of 10 papers in the Nature series of journals, fully demonstrating its top-notch basic scientific research capabilities.
Triple junction solar cells absorb solar spectra in segments through sub cells with different band gaps, which is an important technological route to break through the efficiency limit of single junction solar cells. However, they still face challenges such as wide bandgap perovskite voltage loss and multilayer thin film optical mismatch. In response to these issues, the research team proposed a collaborative strategy of ultra wide bandgap perovskite defect passivation and optical management, which simultaneously overcame the key limitations of perovskite multi junction solar cells in electrical and optical aspects, and successfully prepared efficient and stable perovskite/perovskite/silicon-based triple junction solar cells. After third-party authoritative certification, the steady-state efficiency reached 32.22%, and the efficiency of 16 cm2 large-area devices reached 26.97%, both breaking the efficiency world record of this type of cell and providing a feasible technical path for lightweight, efficient, and stable perovskite/crystalline silicon multi junction photovoltaic devices required for space applications.
Perovskite multilayer solar cells have both high efficiency and the potential for large-scale manufacturing, and are considered an important direction for the next generation of space photovoltaic technology. Through the graded utilization of solar spectra, the theoretical efficiency is expected to exceed 50%. Among them, the perovskite/perovskite/silicon-based triple junction structure is particularly noteworthy, showing significant application prospects.
近日，国际顶尖学术期刊《Nature》刊发天合光能重磅科研成果！光伏科学与技术全国重点实验室主任、天合光能中央研究院院长高纪凡带领科研团队，联合复旦大学张鸿教授团队、东南大学姚惠峰教授团队，在钙钛矿 / 钙钛矿 / 晶体硅三结叠层太阳电池领域取得重大突破，这也是天合光能首次以第一通讯单位身份在《Nature》发表研究论文，截至目前，公司已累计在《Nature》系列期刊发表10篇论文，充分彰显企业顶尖的基础科研硬实力。
三结叠层太阳电池通过不同带隙的子电池分段吸收太阳光谱，是突破单结太阳电池效率极限的重要技术路线，但仍面临宽带隙钙钛矿电压损失和多层薄膜光学失配等挑战。针对这些问题，研究团队提出超宽带隙钙钛矿缺陷钝化与光学管理协同策略，同步攻克了钙钛矿多结叠层太阳电池在电学与光学层面的关键限制，成功制备出高效稳定的钙钛矿/钙钛矿/硅基三结太阳能电池，经第三方权威认证，稳态效率达到32.22%，16 cm2大面积器件效率26.97%，双双刷新该类电池的效率世界纪录，为面向空间应用所需的轻质、高效、稳定钙钛矿/晶硅多结叠层光伏器件提供了可行技术路径。
钙钛矿多结叠层太阳能电池兼具高效率与规模化制造潜力，被视为下一代空间光伏技术的重要方向。通过对太阳光谱的分级利用，理论效率有望超过50%。其中，钙钛矿/钙钛矿/硅基三结结构尤为瞩目，展现出显著的应用前景。
(Using AI translation)
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