气候变化领域集成服务门户(CCPortal): Scaffold-reinforced perovskite compound solar cells

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DOI	10.1039/c7ee02185b
	Scaffold-reinforced perovskite compound solar cells
	Watson B.L.; Rolston N.; Printz A.D.; Dauskardt R.H.
发表日期	2017
ISSN	17545692
起始页码	2500
结束页码	2508
卷号	10 期号:12
英文摘要	The relative insensitivity of the optoelectronic properties of organometal trihalide perovskites to crystallographic defects and impurities has enabled fabrication of highly-efficient perovskite solar cells by scalable solution-state deposition techniques well suited to low-cost manufacturing. Fracture analyses of state-of-the-art devices, however, have revealed that both the perovskite active layer and adjacent carrier selective contacts are mechanically fragile - a major obstacle to technological maturity that stands to significantly compromise their thermomechanical reliability and operational lifetimes. We report a new concept in solar cell design, the compound solar cell (CSC), which addresses the intrinsic fragility of these materials with mechanically reinforcing internal scaffolds. The internal scaffold effectively partitions a conventional monolithic planar solar cell into an array of dimensionally scalable and mechanically shielded individual perovskite cells that are laterally encapsulated by the surrounding scaffold and connected in parallel via the front and back electrodes. The CSCs exhibited a significantly increased fracture energy of ∼13 J m-2 - a 30-fold increase over previously reported planar perovskite (∼0.4 J m-2) - while maintaining efficiencies comparable to planar devices. Notably, the efficiency of the microcells formed within the scaffold is comparable to planar devices on an area-adjusted basis. This development is a significant step in demonstrating robust perovskite solar cells to achieve increased reliability and service lifetimes comparable to c-Si, CIGS, and CdTe solar cells. © The Royal Society of Chemistry.
英文关键词	Cadmium compounds; Fracture; Iodine compounds; Perovskite; Perovskite solar cells; Reinforcement; Scaffolds (biology); Silicon compounds; Tellurium compounds; Crystallographic defects; Deposition technique; Low cost manufacturing; Operational lifetime; Optoelectronic properties; Perovskite compounds; State-of-the-art devices; Thermomechanical reliability; Solar cells; array; crystal structure; crystallography; design; electrical property; electrode; equipment; layer; optical property; perovskite; photovoltaic system; solar power
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190369
作者单位	Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305-2205, United States
推荐引用方式 GB/T 7714	Watson B.L.,Rolston N.,Printz A.D.,et al. Scaffold-reinforced perovskite compound solar cells[J],2017,10(12).
APA	Watson B.L.,Rolston N.,Printz A.D.,&Dauskardt R.H..(2017).Scaffold-reinforced perovskite compound solar cells.Energy & Environmental Science,10(12).
MLA	Watson B.L.,et al."Scaffold-reinforced perovskite compound solar cells".Energy & Environmental Science 10.12(2017).