NDLI: Light trapping in bendable organic solar cells using silica nanoparticle arrays

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Light trapping in bendable organic solar cells using silica nanoparticle arrays

Content Provider	Semantic Scholar
Author	Yun, Jungheum Wang, Weiqi Bae, Tae Sung Lee, Sunghun Kim, Donghwan Lee, Gun Hwan Lee, Hae Seok Song, Myungkwan
Copyright Year	2015
Abstract	A highly efficient light-scattering layer, composed of quasi-periodic discrete silica nanoparticles directly deposited onto polymer substrates to produce bendable organic solar cells (OSCs) with enhanced light absorption, is reported. A silica nanoparticle layer (SNL) underwent self-assembly on a highly flexible and heat-sensitive polymer at room temperature during fabrication, which employed a unique plasma-enhanced chemical vapour deposition technique. Such efficient light-scattering SNLs have not been realizable by conventional solution-based coating techniques. SNLs were optimized by precisely controlling dimensional parameters, specifically, the nanoparticle layer thickness and interparticle distance. The optimized SNL exhibited an improved transmission haze of 16.8% in the spectral range of 350–700 nm, where reduction of the total transmission was suppressed to 2%. Coating light-scattering SNLs onto polymer substrates is a promising method for improving the light harvesting abilities of OSCs by enhancing the light absorption of photoactive polymer layers. This SNL-based flexible OSC exhibited a record power conversion efficiency (PCE) of 7.4%, representing a 13% improvement, while reducing the thickness of the photoactive polymer layer by 30%.
Starting Page	932
Ending Page	940
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1039/C4EE01100G
Volume Number	8
Alternate Webpage(s)	https://pubs.rsc.org/en/content/getauthorversionpdf/C4EE01100G
Alternate Webpage(s)	http://www.rsc.org/suppdata/ee/c4/c4ee01100g/c4ee01100g1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C4EE01100G
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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