Organic Solar Cells by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9789811591136
Publisher: Springer Singapore

As shown in Fig. 6.17, these two bands decay faster at an early time stage under higher excitation intensities, suggesting bimolecular recombination. The decay dynamics can be well-fitted with an empirical power-law equation

Fig. 6.17Charge density decays of RR-P3HT/PCBM blend films excited at 400 nm with a fluence of 0.8 (blue lines), 1.8 (red lines), and 4.7 μJ cm−2 (black lines). The spectra were measured at a 700 nm and b 1000 nm. The broken lines represent fitting curves with an empirical equation: n(t) = n(0)/(1 + at)α.

Reprinted with the permission from [44]. Copyright 2010 American Chemical Society

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