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Updated: Jan 28, 2026
Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
Published on: September 8, 2016
Lutetium Bis(2,3,9,10,16,17,23,24-octafluorophthalocyanine): From Synthesis to Heterojunction Device
Petr Bečvář1, Stephane Brandès1, Lucas Vachey1
1UMR CNRS 6302, Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université Bourgogne Europe, 9 avenue Alain Savary, Dijon Cedex 21078, France.
Abstract:
Lutetium bisphthalocyanine (LuPc2) is a well-established molecular semiconductor, yet its fluorinated derivatives remain largely unexplored. In this work, we investigate the lutetium octafluorosubstituted bisphthalocyanine complex, Lu(F8Pc)2. The complex was synthesized both directly from 4,5-difluoro-1,2-dicyanobenzene and via the metal-free octafluorophthalocyanine precursor H2F8Pc, and characterized by mass spectrometry and optical spectroscopy. Drop-cast films of Lu(F8Pc)2 were fabricated and their electrical properties evaluated. Additionally, we examined the response of these resistors to ammonia. Bilayer heterojunctions combining Lu(F8Pc)2 with its nonsubstituted analogue, LuPc2, were also prepared. Notably, Lu(F8Pc)2 resistors and Lu(F8Pc)2/LuPc2 heterojunctions exhibit opposite responses to NH3, positive and negative, respectively. These findings provide new insights into structure-property relationships in phthalocyanine-based semiconductors.
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