266340-73-2Relevant academic research and scientific papers
The use of sublimable chlorotricarbonyl bis(phenylimino)acenaphthene rhenium(I) complexes as photosensitizers in bulk-heterojunction photovoltaic devices
Mak, Chris S.K.,Wong, Hei Ling,Leung, Qing Yun,Tam, Wing Yan,Chan, Wai Kin,Djuri?i?, Aleksandra B.
, p. 2770 - 2776 (2009/12/06)
A series of sublimable substituted chlorotricarbonyl bis(phenylimino)acenaphthene rhenium(I) complexes was synthesized and used in the fabrication of photovoltaic devices. The hole and electron carrier mobilities of these complexes are in the order of 10-3 to 10-4 cm2 V-1 s-1. Heterojunction devices with CuPc/complex/C60 (CuPc = copper phthalocyanine) as the active layer and bulk heterojunction devices with complex:C60 as the active layer were fabricated. The rhenium complexes function as photosensitizer in the devices, and exhibit optical absorption in the region between 500 and 550 nm within which other components in the device do not absorb. Other devices with hole transport materials, exciton blocking materials, and different active layer thickness were also fabricated. Variation of substitution groups in the ligand did not show significant difference in device performance. The best power conversion efficiency of the devices was measured to be 1.29% under illumination of AM1.5 simulated solar light.
Non-Luminescent 1,2-Diiminetricarbonylrhenium(I) Chloride Complexes - Synthesis, Electrochemical and Spectroscopic Properties of Re(DIAN)(CO)3Cl with DIAN = p-Substituted Bis(arylamino)acenaphthene
Knoer, Guenther,Leirer, Markus,Keyes, Tia E.,Vos, Johannes G.,Vogler, Arnd
, p. 749 - 752 (2007/10/03)
Re(1,2-diimine)(CO)3Cl compounds containing the p-substituted bis(diarylimino)acenaphthene derivatives DIAN-R with R=H, Me, OMe, Br, and Cl were prepared and characterized. The diimine ligands of this series provide unoccupied orbitals at rather low energies and display a pronounced ?-accepting strength. This feature determines the electrochemical and spectroscopic properties of the Re(DIAN-R)(CO)3Cl complexes. All compounds show rhenium(I) to η* (diimine) metal-to-ligand charge transfer (MLCT) absorptions in the visible spectral region. The maxima of these CT bands systematically shift upon modification of the substituents R and are sensitive to variations of the solvent polarity (negative solvatochromism). Re(DIAN-R)(CO)3Cl complexes are non-luminescent both in fluid solution at 298 K and in solvent glass at 77 K.
