Devices are fabricated as outlined in the device fabrication part. FTPS-EQE measurements were carried out using a Vertex 70 from Bruker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A low noise current amplifier (DLPCA-200) was used to amplify the photocurrent produced upon illumination of the photovoltaic devices with light modulated by the FTIR. The output voltage of the current amplifier was fed back to the external detector port of the FTIR, in order to use the FTIR's software to collect the photocurrent spectrum.
Baran D., Kirchartz T., Wheeler S., Dimitrov S., Abdelsamie M., Gorman J., Ashraf R.S., Holliday S., Wadsworth A., Gasparini N., Kaienburg P., Yan H., Amassian A., Brabec C.J., Durrant J.R, & McCulloch I. (2016). Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages †Electronic supplementary information (ESI) available. See DOI: 10.1039/c6ee02598f Click here for additional data file.. Energy & Environmental Science, 9(12), 3783-3793.
Other organizations :
King Abdullah University of Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Hong Kong University of Science and Technology, University of Hong Kong, Kowloon Hospital
Vertex 70 from Bruker optics, equipped with QTH lamp, quartz beam splitter and external detector option
Low noise current amplifier (DLPCA-200) used to amplify the photocurrent
Photocurrent spectrum collected using the FTIR's software
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