气候变化领域集成服务门户(CCPortal): Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells

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DOI	10.1039/c9ee02986a
	Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells
	Tang S.; Qiu W.; Xiao S.; Tong Y.; Yang S.
发表日期	2020
ISSN	17545692
起始页码	660
结束页码	684
卷号	13 期号:3
英文摘要	Photoelectrochemical (PEC) cells including dye-sensitized solar cells and photoelectrochemical water splitting devices are a promising approach to effectively harvesting and storing solar energy, but the contradictory requirements on the device design with sustainable materials between charge collection and light absorption hinder their development. An ideal material possessing simultaneously wide and strong photo-absorption and high electrical conductivity is hard to come by, but these features can be built into hierarchical structures by rationally combining materials with multiple dimensions and multiple functions, thereby solving the contradiction between charge collection and light absorption. In this article, we review recent progress in the design and utilization of hierarchical architectures here, specifically referring to structures with a combination of 0-3D entities, for PEC cells. Inspired by the natural photosynthesis system, which divides the overall task among chloroplasts, foliages, trunks and branches, we split the hierarchical structure into three functional parts, a surface coating layer for anti-reflection and charge transfer, a light absorbing block and a support structure good in anti-transmittance and charge transport. In this way, the above-mentioned contradiction in solar energy conversion can be solved by decoupling the charge collection from optical propagation. The design ideas and the underlying mechanisms of each part of the hierarchical structure are discussed in detail. In general, appropriately designing each individual unit to control light absorption and charge transport is the main strategy to trap light and to direct charge carriers. Finally, the prospects and future directions are presented. © 2020 The Royal Society of Chemistry.
英文关键词	Carrier transport; Charge transfer; Energy conversion; Light absorption; Solar energy; Structures (built objects); Water absorption; Hierarchical architectures; Hierarchical structures; High electrical conductivity; Multiple dimensions; Photoelectrochemical water splitting; Photoelectrochemicals; Support structures; Sustainable materials; Dye-sensitized solar cells; electrical conductivity; energy efficiency; fuel cell; hierarchical system; light; 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/189680
作者单位	Guangdong Key Lab of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, China; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, Key Lab of Low-Carbon Chemistry and Energy Conservation of Guangdong Province, School of Chemistry, Sun Yat-sen University (SYSU), Guangzhou, China; Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	Tang S.,Qiu W.,Xiao S.,et al. Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells[J],2020,13(3).
APA	Tang S.,Qiu W.,Xiao S.,Tong Y.,&Yang S..(2020).Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells.Energy & Environmental Science,13(3).
MLA	Tang S.,et al."Harnessing hierarchical architectures to trap light for efficient photoelectrochemical cells".Energy & Environmental Science 13.3(2020).