(1)  Huo, L. J.; Zhang, S. Q.; Guo, X.; Xu, F.; Li, Y. F.; Hou, J. H.: Replacing Alkoxy Groups with Alkylthienyl Groups: A Feasible Approach To Improve the Properties of Photovoltaic Polymers. Angewandte Chemie-International Edition 2011, 50, 9697-9702. 

(2)  Huo, L. J.; Hou, J. H.: Benzo 1,2-b:4,5-b ' dithiophene-based conjugated polymers: band gap and energy level control and their application in polymer solar cells. Polymer Chemistry 2011, 2, 2453-2461. （invited review）

(3)  Huo, L. J.; Guo, X.; Zhang, S. Q.; Li, Y. F.; Hou, J. H.: PBDTTTZ: A Broad Band Gap Conjugated Polymer with High Photovoltaic Performance in Polymer Solar Cells. Macromolecules 2011, 44, 4035-4037.

(4)  Huo, L. J.; Guo, X.; Li, Y. F.; Hou, J. H.: Synthesis of a polythieno 3,4-b thiophene derivative with a low-lying HOMO level and its application in polymer solar cells. Chemical Communications 2011, 47, 8850-8852.

(5)  Huang, Y.; Huo, L. J.; Zhang, S. Q.; Guo, X.; Han, C. C.; Li, Y. F.; Hou, J. H.: Sulfonyl: a new application of electron-withdrawing substituent in highly efficient photovoltaic polymer. Chemical Communications 2011, 47, 8904-8906.

(6)  He, Y. J.; Chen, H. Y.; Zhao, G. J.; Hou, J. H.; Li, Y. F.: Biindene-C-60 adducts for the application as acceptor in polymer solar cells with higher open-circuit-voltage. Solar Energy Materials and Solar Cells 2011, 95, 899-903.

(7)  He, Y. J.; Chen, H. Y.; Zhao, G. J.; Hou, J. H.; Li, Y. F.: Synthesis and photovoltaic properties of biindene-C-70 monoadduct as acceptor in polymer solar cells. Solar Energy Materials and Solar Cells 2011, 95, 1762-1766.