Porphyrins, which are synthetic analogues of natural chlorophylls, are of special interest, because they are known to be a natural choice as light-harvesting antenna systems that are involved in energy and electron transfer processes. In recent years, there has been a great focus of interest on the field of solution-processed BHJ organic solar cells using porphyrin derivatives as donors, which resulted in PCEs up to 9.06 %. 
Here, we will present the synthesis, optical, electrochemical and photovoltaic properties of new porphyrin A-D-A and D-A-D derivatives used as donor, in BHJ solar cells, with PC71BM as acceptor reaching excellent efficiencies, higher than 8%.
 K. Gao, J. Miao, L. Xiao, W. Deng, Y. Kan, T. Liang, C. Wang, F. Huang, J. Peng, Y. Cao, F. Liu, T. P. Russell, H. Wu, X. Peng. Adv. Mater. 2016, 28, 4727.
 G. Morán, S. Arrechea, P. de la Cruz, V. Cuesta, S. Biswas, E. Palomares, G. D. Sharma and F. Langa, J. Mater. Chem. A, 2016, 4, 11009.
 S. Arrechea, A. Aljarilla, P. de la Cruz, E. Palomares G. D. Sharma, F. Langa. Nanoscale2016, 8 , 17953.