FTPS-EQE Measurement Protocol

FTPS-EQE was measured using Vertex 70 from Bruker Optics, equipped with a quartz tungsten halogen lamp, quartz beam splitter and external detector option. A low-noise current amplifier (SR570) was used to amplify the photocurrent produced on illumination of the photovoltaic devices with light modulated by the Fourier-transform infrared spectroscope (FTIR). The output voltage of the current amplifier was fed back into the external detector port of the FTIR, to be able to use the FTIR’s software to collect the photocurrent spectrum.

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Yuan J., Huang T., Cheng P., Zou Y., Zhang H., Yang J.L., Chang S.Y., Zhang Z., Huang W., Wang R., Meng D., Gao F, & Yang Y. (2019). Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics. Nature Communications, 10, 570.

Publication 2019

Vertex 70

Devices Ftir Halogen Light Optics Quartz Tungsten

Corresponding Organization :

Other organizations : University of California, Los Angeles, Central South University, Linköping University, California NanoSystems Institute

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Variable analysis

independent variables

FTPS-EQE measurement

dependent variables

Photocurrent spectrum

control variables

Vertex 70 from Bruker Optics
Quartz tungsten halogen lamp
Quartz beam splitter
External detector option
Low-noise current amplifier (SR570)
FTIR's software to collect the photocurrent spectrum

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