Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66026
Title: Versatile biomimetic haze films for efficiency enhancement of photovoltaic devices
Authors: Li, K
Zhang, Y
Zhen, H
Wang, H
Liu, S
Yan, F
Zheng, Z
Issue Date: 2017
Publisher: Royal Society of Chemistry
Source: Journal of materials chemistry A, 2017, v. 5, no. 3, p. 969-974 How to cite?
Journal: Journal of materials chemistry A 
Abstract: A low-cost biomimetic haze film (BHF) is fabricated by one-step replica molding of the petal texture of yellow roses with polydimethylsiloxane (PDMS). The BHF possesses very high haze transmission (75%) and ultrahigh diffusion transmittance (97%), superior anti-reflection ability, remarkable enhancement of light absorption at small incidence angles, and superb resistance to strong acids. When attached on top of the glass side of photovoltaic cells, the BHF significantly elongates the photon pathway in the active layer and enhances the light harvesting of the solar devices. As a result, the power conversion efficiency of Si solar cells, organic solar cells (OSCs) and perovskite solar cells (PSCs) is respectively improved remarkably by 6.8%, 10% and 15%. In addition, >65% of the photocurrent is maintained even at an extremely small light incidence angle (10°), which equals more than 2.7 times the efficiency enhancement of the solar cell without the BHF.
URI: http://hdl.handle.net/10397/66026
ISSN: 2050-7488
EISSN: 2050-7496
DOI: 10.1039/c6ta07586j
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