Low-cost light manipulation coatings for polymer solar cell photocurrent increase under various incident angles

We fabricate self-assembled templates to produce textured polydimethylsiloxane (PDMS) with quasi-random dimension distributions which are employed as light manipulation coatings in polymer solar cells (PSCs). When deposited at the PSC glass/air interface, PDMS films with microdome-like structures en...

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Bibliographic Details
Main Authors: Takahiro Takumi, Savanna Lloyd, Hideyuki Murata, Varun Vohra
Format: Article
Language:English
Published: Taylor & Francis Group 2019-02-01
Series:Materials Research Letters
Subjects:
Online Access:http://dx.doi.org/10.1080/21663831.2018.1556183
Description
Summary:We fabricate self-assembled templates to produce textured polydimethylsiloxane (PDMS) with quasi-random dimension distributions which are employed as light manipulation coatings in polymer solar cells (PSCs). When deposited at the PSC glass/air interface, PDMS films with microdome-like structures enhance the short-circuit current density (Jsc) by 7.9% through combined anti-reflective and scattering effects. The PSC power conversion efficiency can thus be improved from 6.75% to 7.28% and a maximum Jsc increase of 21% is observed for incident light tilted by 30 degrees. We compare structures with different diameter dispersities and confirm that quasi-randomness in textured coatings can increase their light scattering ability.
ISSN:2166-3831