Tandem luminescent solar concentrators based on engineered quantum dots

doi:10.1038/s41566-017-0070-7

	Tandem luminescent solar concentrators based on engineered quantum dots
	Wu, Kaifeng 1,2,3; Li, Hongbo 2,4; Klimov, Victor I.2
刊名	NATURE PHOTONICS
	2018-02-01
卷号	12 期号:2 页码:105-+
ISSN号	1749-4885
DOI	10.1038/s41566-017-0070-7
文献子类	Article
英文摘要	Luminescent solar concentrators (LSCs) can serve as large-area sunlight collectors for terrestrial and space-based photovoltaics. Due to their high emission efficiencies and readily tunable emission and absorption spectra, colloidal quantum dots have emerged as a new and promising type of LSC fluorophore. Spectral tunability of the quantum dots also facilitates the realization of stacked multilayered LSCs, where enhanced performance is obtained through spectral splitting of incident sunlight, as in multijunction photovoltaics. Here, we demonstrate a large-area (> 230 cm(2)) tandem LSC based on two types of nearly reabsorption-free quantum dots spectrally tuned for optimal solar-spectrum splitting. This prototype device exhibits a high optical quantum efficiency of 6.4% for sunlight illumination and solar-to-electrical power conversion efficiency of 3.1%. The efficiency gains due to the tandem architecture over single-layer devices quickly increase with increasing LSC size and can reach more than 100% in structures with window sizes of more than 2,500 cm(2).
WOS关键词	POWER CONVERSION EFFICIENCY ; CUINS2 NANOCRYSTALS ; STOKES-SHIFT ; CELLS ; ENERGY ; ABSORPTION ; PHOTOVOLTAICS ; ENVIRONMENT ; PERFORMANCE ; BLINKING
WOS研究方向	Optics ; Physics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000423445500018
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168568]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Klimov, Victor I.
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, Dalian, Peoples R China 2.Los Alamos Natl Lab, Ctr Adv Solar Photophys, Los Alamos, NM 87545 USA 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian, Peoples R China 4.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Kaifeng,Li, Hongbo,Klimov, Victor I.. Tandem luminescent solar concentrators based on engineered quantum dots[J]. NATURE PHOTONICS,2018,12(2):105-+.
APA	Wu, Kaifeng,Li, Hongbo,&Klimov, Victor I..(2018).Tandem luminescent solar concentrators based on engineered quantum dots.NATURE PHOTONICS,12(2),105-+.
MLA	Wu, Kaifeng,et al."Tandem luminescent solar concentrators based on engineered quantum dots".NATURE PHOTONICS 12.2(2018):105-+.