The impact of plasmonic electrodes on the photocarrier extraction of inverted organic bulk heterojunction solar cells

0571634 - FZÚ 2024 RIV DE eng J - Journal Article
Kolb, F. - El Gemayel, M. - Khan, I. - Dostálek, Jakub - Trattnig, R. - Sommer, C. - List-Kratochvil, E.J.W.
The impact of plasmonic electrodes on the photocarrier extraction of inverted organic bulk heterojunction solar cells.
Applied Physics A - Materials Science & Processing. Roč. 129, č. 3 (2023), č. článku 230. ISSN 0947-8396. E-ISSN 1432-0630
Institutional support: RVO:68378271
Keywords : organic solar cells * electrode patterning * optical enhancement * surface plasmons * dielectric waveguide modes * charge carrier extraction
OECD category: Electrical and electronic engineering
Impact factor: 2.7, year: 2022
Method of publishing: Open access

Nano-patterning the semiconducting photoactive layer/back electrode interface of organic photovoltaic devices is a widely accepted approach to enhance the power conversion efficiency through the exploitation of numerous photonic and plas- monic effects. Yet, nano-patterning the semiconductor/metal interface leads to intertwined effects that impact the optical as well as the electrical characteristic of solar cells. In this work we aim to disentangle the optical and electrical effects of a nano-structured semiconductor/metal interface on the device performance. For this, we use an inverted bulk heterojunction P3HT:PCBM solar cell structure, where the nano-patterned photoactive layer/back electrode interface is realized by pattern- ing the active layer with sinusoidal grating profiles bearing a periodicity of 300 nm or 400 nm through imprint lithography while varying the photoactive layer thickness (LPAL) between 90 and 400 nm.
Permanent Link: https://hdl.handle.net/11104/0346101