1583299-11-9Relevant academic research and scientific papers
N-Annulated perylene-substituted and fused porphyrin dimers with intense near-infrared one-photon and two-photon absorption
Luo, Jie,Lee, Sangsu,Son, Minjung,Zheng, Bin,Huang, Kuo-Wei,Qi, Qingbiao,Zeng, Wangdong,Li, Gongqiang,Kim, Dongho,Wu, Jishan
, p. 3708 - 3715 (2015)
Fusion of two N-annulated perylene (NP) units with a fused porphyrin dimer along the S0-S1 electronic transition moment axis has resulted in new near-infrared (NIR) dyes 1a/1b with very intense absorption (ε > 1.3 × 105 M
PERYLENE FUNCTIONALIZED PORPHYRIN DYES FOR DYE-SENSITIZED SOLAR CELLS
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Paragraph 067, (2015/02/02)
The invention relates to dyes for dye-sensitized solar cells, and in particular, to perylene functionalized porphyrin dyes for dye-sensitized solar cells. The invention further relates to a dye molecule comprising perylene functionalized porphyrin moiety.
N -annulated perylene as an efficient electron donor for porphyrin-based dyes: Enhanced light-harvesting ability and high-efficiency Co(II/III)-based dye-sensitized solar cells
Luo, Jie,Xu, Mingfei,Li, Renzhi,Huang, Kuo-Wei,Jiang, Changyun,Qi, Qingbiao,Zeng, Wangdong,Zhang, Jie,Chi, Chunyan,Wang, Peng,Wu, Jishan
supporting information, p. 265 - 272 (2014/01/23)
Porphyrin-based dyes recently have become good candidates for dye-sensitized solar cells (DSCs). However, the bottleneck is how to further improve their light-harvesting ability. In this work, N-annulated perylene (NP) was used to functionalize the Zn-porphyrin, and four push-pull -type NP-substituted and fused porphyrin dyes with intense absorption in the visible and even in the near-infrared (NIR) region were synthesized. Co(II/III)-based DSC device characterizations revealed that dyes WW-5 and WW-6, in which an ethynylene spacer is incorporated between the NP and porphyrin core, showed pantochromatic photon-to-current conversion efficiency action spectra in the visible and NIR region, with a further red-shift of about 90 and 60 nm, respectively, compared to the benchmark molecule YD2-o-C8. As a result, the short-circuit current density was largely increased, and the devices displayed power conversion efficiencies as high as 10.3% and 10.5%, respectively, which is comparable to that of the YD2-o-C8 cell (η = 10.5%) under the same conditions. On the other hand, the dye WW-3 in which the NP unit is directly attached to the porphyrin core showed a moderate power conversion efficiency (η = 5.6%) due to the inefficient π-conjugation, and the NP-fused dye WW-4 exhibited even poorer performance due to its low-lying LUMO energy level and nondisjointed HOMO/LUMO profile. Our detailed physical measurements (optical and electrochemical), density functional theory calculations, and photovoltaic characterizations disclosed that the energy level alignment, the molecular orbital profile, and dye aggregation all played very important roles on the interface electron transfer and charge recombination kinetics.
