title: Synthesis and photophysical properties of phosphorus(V) porphyrins functionalized with axial carbazolylvinylnaphthalimides.
abstract: We have synthesized new D-A-D type phosphorus(V) porphyrin derivatives and functionalized with axial carbazolylvinylnaphthalimide units. The absorption bands of the obtained phosphorus(V) porphyrins were in the range 250-640 nm with high molar absorption coefficients, meaning strong light-harvesting abilities. Notably, it is found that the devices based on phosphorus(V) porphyrins with a configuration structure of [ITO/PEDOT : PSS/organic active film/LiF/Al] give an incident-photon-to-current conversion efficiency (IPCE) response. The maximal IPCE value reaches 2.76% for the device based on compound , which is much higher than that of 0.20% for compound . The reason might be due to the low oxidation potential and the strong light-harvesting ability of the enlarged conjugation of the axial units in compound . Therefore, we deduced that photo-induced electron transfer happened in phosphorus(V) porphyrins bearing axial conjugated donor units, which would make them good candidates for photovoltaic materials that could be applied in solar cells.
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhan
authors.forename: Kaiyu
authors.initials: K
authors.lastname: Cao
authors.forename: Chenguang
authors.initials: C
authors.lastname: Wang
authors.forename: Junhui
authors.initials: J
authors.lastname: Jia
authors.forename: Pengchong
authors.initials: P
authors.lastname: Xue
authors.forename: Xingliang
authors.initials: X
authors.lastname: Liu
authors.forename: Xuemei
authors.initials: X
authors.lastname: Duan
authors.forename: Ran
authors.initials: R
authors.lastname: Lu
mesh_terms: D015394:Molecular Structure; D053644:Naphthalimides / Q000737:chemistry*; D010758:Phosphorus / Q000737:chemistry*; D055668:Photochemical Processes; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D011789:Quantum Theory; D014753:Vinyl Compounds / Q000737:chemistry*
chemical_list: D053644:Naphthalimides; D011166:Porphyrins; D014753:Vinyl Compounds; D010758:Phosphorus