Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 5, 2013
Previous Article Next Article

Efficient light trapping in inverted polymer solar cells by a randomly nanostructured electrode using monodispersed polymer nanoparticles

Author affiliations

Abstract

The randomly nanotextured back electrode provides a simple and efficient route for enhancing photocurrent in polymer solar cells (PSCs) by light trapping, which can increase light absorption within a finite thickness of the active layer. In this study, we incorporated mono-disperse 60 nm polystyrene nanoparticles (PS NPs) into a 50 nm thick poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) anode buffer layer (ABL) to create a randomly nanotextured back electrode with 10 nm height variations in inverted-type PSCs. The roughened interface between the PS NP-PEDOT:PSS ABL and the Ag electrode scatters light in the visible range, leading to efficient light trapping within the device and enhanced light absorption in the active layer. Inverted PSCs with randomly nanotextured electrodes (ϕNP = 0.31) showed short-circuit current density (JSC) and power conversion efficiency (PCE) values that were 15% higher than those of control devices with flat electrodes. External quantum efficiency, reflectance, and optical light scattering as a function of ϕNP were examined to determine the origin of the enhancement in JSC and PCE.

Graphical abstract: Efficient light trapping in inverted polymer solar cells by a randomly nanostructured electrode using monodispersed polymer nanoparticles

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 13 Oct 2012, accepted on 10 Dec 2012 and first published on 13 Dec 2012


Article type: Paper
DOI: 10.1039/C2NR33160H
Citation: Nanoscale, 2013,5, 1858-1863
  •   Request permissions

    Efficient light trapping in inverted polymer solar cells by a randomly nanostructured electrode using monodispersed polymer nanoparticles

    D. J. Kang, H. Kang, C. Cho, K. Kim, S. Jeong, J. Lee and B. J. Kim, Nanoscale, 2013, 5, 1858
    DOI: 10.1039/C2NR33160H

Search articles by author