Ultrafast Transient Spectroscopy of Polymer/Fullerene Blends for Organic Photovoltaic Applications
Abstract
:1. Introduction
2. Experimental
2.1. Photoexcitations Dynamics in Pristine P3HT
2.2. Photoexcitations Dynamics in P3HT/PCBM Blend
2.3. Photoexcitation Dynamics in P3HT/PCBM Blend Doped with Galvinoxyl Spin 1/2 Radicals
Galvinoxyl (%) | Transient Decay at 2.26 eV | Transient Decay at 1.3 eV | Jsc (mA/cm2) | Voc (V) | Fill-Factor (%) | Efficiency (%) |
---|---|---|---|---|---|---|
0 | 7 ps (47%), >5 ns (53%) | 62 ps (32%), >5 ns (68%) | 11.3 | 0.57 | 55 | 3.46 |
3 | 8 ps (33%), >5 ns (67%) | 73 ps (16%), >5 ns (84%) | 12.7 | 0.58 | 60 | 4.20 |
10 | 7 ps (28%), >5 ns (72%) | 63 ps (10%), >5 ns (90%) | 11.2 | 0.61 | 53 | 3.55 |
Sample | Transient Decay at 2.26 eV | Transient Decay at 1.3 eV |
---|---|---|
RR-P3HT/PCBM | 7 ps (47%), >5 ns (53%) | 60 ps (32%), >5 ns (68%) |
RR-P3HT/ICTA | 9 ps (57%), ~2.5 ns (43%) | 34 ps (36%), ~3.3 ns (64%) |
2.4. Photoexcitation Dynamics in P3HT/ICTA Blend
3. Conclusions
Acknowledgement
References
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Singh, S.; Vardeny, Z.V. Ultrafast Transient Spectroscopy of Polymer/Fullerene Blends for Organic Photovoltaic Applications. Materials 2013, 6, 897-910. https://doi.org/10.3390/ma6030897
Singh S, Vardeny ZV. Ultrafast Transient Spectroscopy of Polymer/Fullerene Blends for Organic Photovoltaic Applications. Materials. 2013; 6(3):897-910. https://doi.org/10.3390/ma6030897
Chicago/Turabian StyleSingh, Sanjeev, and Zeev Valy Vardeny. 2013. "Ultrafast Transient Spectroscopy of Polymer/Fullerene Blends for Organic Photovoltaic Applications" Materials 6, no. 3: 897-910. https://doi.org/10.3390/ma6030897