The global challenge of sustainable development, clean energy and climate change needs to be pursued by development of energy technologies. Solar energy is available around the world as radiant light or heat from the sun, using technology such as photovoltaic devices. The new generation of photovoltaics can offer an alternative and complementary approach to the exploitation of solar energy [1]; It offers low manufacturing cost, flexibility and lightweight. The most promising ones for its remarkable progress are: organic, dye sensitized and perovskite solar cells. In this study, twelve families [2,5] of porphyrins with configuration A-π-D-π-A were synthesized and characterized to apply them in bulk heterojunction solar cells (BHJSC) with fullerene derivative PCBM as acceptor. The optical, electrochemical and photovoltaic properties of these systems will be described. After optimizing the processing by a solvent and additive power conversion efficiencies reach values of 7.93%. The effects over the film morphology and the device characteristics open circuit voltage (Voc), current (Jsc), fill factor (FF) due to the introduction of additives will be discussed.
[1] Gao, K., Li, L., Lai, T., Xiao, L., Huang, Y., Huang, F., Peng, J., Cao, Y.,Liu, F., Russell, T. P., Janssen, R. A. J., Peng, X., J. Am. Chem. Soc. 137, 7282 (2015). [2] Arrechea, S.; Aljarilla, A.; de la Cruz, P.; Kumar, P.; Sharma, G. D.; Langa, F. J. Mater. C. 2017, [3] Arrechea, S.; Aljarilla, A.; de la Cruz, P.; Palomares, E.; Sharma, G. D.; Langa, F. Nanoscale, 2016, 8, 17953-17962. [4] Móran, G. ; Arrechea, S. ; de la Cruz, P. ; Cuesta, V. ; Biswas, S. ; Palomares, E. ; Sharma, G. D. ; Langa, F. J. Mater. Chem. A, 2016, 4, 11009-11022.
