A　series　of　zinc　porphyrin　dyes　(JY24-27)　featured　phenothiazine　moieties　have　been　synthesized　and　applied　as　photosensitizers　in　dye-sensitized　solar　cells.　The　phenothiazine　donors　were　directly　attached　to　the　meso-position　of　porphyrins,　and　different　π-linkers　(benzene,　thiophene　and　ethynyl　benzene)　and　acceptor　groups　(carboxylic　acid　and　cyanoacrylic　acid)　were　applied　to　tune　the　photoelectric　properties　of　these　push-pull　porphyrin　dyes.　The　photophysical,　electrochemical　and　theoretical　studies　revealed　that　the　synthesized　porphyrin　dyes　were　all　capable　of　being　used　as　photosensitizer.　The　dye　JY27　with　an　extended　conjugation　by　introducing　ethynyl　group　exhibited　a　broader　absorption　region　and　more　significantly　improved　IPCE　values　between　550　and　750　nm　than　the　other　three　dyes,　which　ensured　a　good　light-harvesting　ability　and　a　high　short-circuit　current　density　of　15.3　mA　cm-2.　Finally,　JY27-based　cell　achieved　a　high　efficiency　of　6.25%　under　standard　simulated　irradiation.　©　The　Royal　Society　of　Chemistry　2016.