Characterizing Photovoltaic Device Performance

FTPS-EQE measurement was performed at a Vertex 70 from Bruker Optics, which equipped with a quartz tungsten halogen lamp, quartz beam-splitter and external detector option. The amplification of the photocurrent product was achieved by using a low-noise current amplifier (SR570) on the illumination of the photovoltaic devices with light modulated by the Fourier transform infrared spectroscopy (FTIR). The external detector port of the FTIR gathered the signals from the current amplifier for output voltage. A Keithley 2400 SourceMeter was used for supplying voltages and recording injected current, and a Keithley 485 picoammeter was used for measuring the emitted light intensity.

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Zhou R., Jiang Z., Yang C., Yu J., Feng J., Adil M.A., Deng D., Zou W., Zhang J., Lu K., Ma W., Gao F, & Wei Z. (2019). All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies. Nature Communications, 10, 5393.

Publication 2019

Vertex 70

Devices Ftir Halogen Light Optics Quartz Tungsten

Corresponding Organization :

Other organizations : National Center for Nanoscience and Technology, Linköping University, Xi'an Jiaotong University, University of Chinese Academy of Sciences

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Variable analysis

independent variables

Light modulation by the Fourier transform infrared spectroscopy (FTIR)

dependent variables

Photocurrent product amplification
Output voltage from the current amplifier
Injected current
Emitted light intensity

control variables

Vertex 70 from Bruker Optics equipped with a quartz tungsten halogen lamp, quartz beam-splitter and external detector option
Low-noise current amplifier (SR570)
Keithley 2400 SourceMeter for supplying voltages and recording injected current
Keithley 485 picoammeter for measuring the emitted light intensity

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