AI Article Synopsis
- The study investigates the photophysical properties of three organic blend systems featuring [60]PCBM mixed with various semiconducting arylacetylenes and one arylvinylene.
- The blends showed effective energy transfer from the shorter wavelength (hypsochromic) to the longer wavelength (bathochromic) components, enhancing their potential for improved sunlight collection.
- Notably, only the arylvinylene derivative demonstrated significant emission enhancement in thin film applications.
Article Abstract
In this contribution we report the photophysical study of three organic blend systems comprising [60]PCBM along with different combinations of five extended semiconducting arylacetylenes, i.e. p-[(2-{[m,p-didodecyloxyphenyl]ethynyl}-7-fluorenyl)ethynyl]benzonitrile, 4,7-bis(5-{[m,p-bis(hexyloxy)phenyl]ethynyl}thien-2-yl)-2,1,3-benzothiadiazole, 9,10-bis-[(m,m-bis{[m,m-bis-(hexyloxy)phenyl]ethynyl}phenyl)ethynyl]-anthracene, pseudo-p-[(10-{[m,p-bis-(hexyloxy)phenyl]ethynyl}-9-anthryl[2.2]paracyclophane, and oligo{2,5-bis(hexyloxy)[1,4- phenylene ethynylene]-alt-[9,10-anthraceneethynylene]}, and one semiconducting arylvinylene, i.e. 9,10-bis-{(E)-[m,p-bis(hexyloxy)phenyl]vinyl}-anthracene, that evidenced an efficient quantitative energy transfer from the hypsochromic to the bathochromic species (the potential efficient charge-donor components), useful to extend the collection of sunlight. An interesting emission enhancement in thin films has been observed only for the arylvinylene derivative.
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