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Attempted Inversion of Semiconducting Features of Platinum Polyyne Polymers: A New Approach for All‐Polymer Solar Cells
Author(s) -
Yuan Yuping,
Michinobu Tsuyoshi,
Oguma Jun,
Kato Takehito,
Miyake Kunihito
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201300245
Subject(s) - tetracyanoethylene , polymer , platinum , fullerene , materials science , polymer chemistry , photochemistry , thiophene , acceptor , polymer solar cell , chemistry , organic chemistry , catalysis , composite material , condensed matter physics , physics
Platinum(II) polyyne polymers containing thiophene‐acceptor‐thiophene units are synthesized, and their main chain alkynes are functionalized by the formal cycloaddition–retro‐electrocyclization reaction with tetracyanoethylene (TCNE). The polymer energy levels are significantly decreased by the TCNE addition. Bulk‐heterojunction solar cells are fabricated using the TCNE‐adducted platinum(II) polyyne polymers. The use of these polymers as p‐type semiconductors in combination with n‐type fullerene derivatives indicates that the p‐type semiconducting ability decreases by approximately five to ten times after the TCNE addition. On the contrary, when the TCNE‐adducted polymers are employed as a substitute for the fullerene derivatives, the all‐polymer solar cells are initially fabricated.