Optical coherence tomography (OCT) as a 3-dimensional imaging technique for non-destructive testing of roll-to-roll coated polymer solar cells

Lars Thrane, Thomas Martini Jørgensen, Mikkel Jørgensen, Frederik C Krebs

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Abstract

We have recently demonstrated the first application of optical coherence tomography (OCT) as a 3-dimensional (3D) imaging technique to visualize the internal structure of complete multilayered polymer solar cell modules (Thrane et al., Solar Energy Materials & Solar Cells 97, 181-185 (2012)). The 3D imaging of complete polymer solar cells prepared by roll-to-roll coating was carried out using a high-resolution 1322nm OCT system having a 4.5 microns axial resolution and a 12 microns lateral resolution. It was possible to image the 3-dimensional structure of the entire solar cell that comprise UV-barrier, barrier material, adhesive, substrate and active solar cell multilayer structure. In addition, it was found that the OCT technique could be readily employed to identify coating defects in the functional layers, making it a potential technique to enable process control by real-time adjustment to the production process.
Original languageEnglish
Title of host publicationOCT4NDT Symposium : Abstract Collection
Publication date2013
Pages43-45
Publication statusPublished - 2013
EventFirst International Symposium on Optical Coherence Tomography for Non-Destructive Testing (OCT4NDT 2013) - Linz, Austria
Duration: 13 Feb 201314 Feb 2013

Conference

ConferenceFirst International Symposium on Optical Coherence Tomography for Non-Destructive Testing (OCT4NDT 2013)
CountryAustria
CityLinz
Period13/02/201314/02/2013

Bibliographical note

Extended abstract of oral presentation.

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