Zinc(ii) tetraphenyltetrabenzoporphyrin complex as triplet photosensitizer for triplet–triplet annihilation upconversion†
Abstract
Zn(II) tetraphenyltetrabenzoporphyrin (TPTBP) and the free base H2TPTBP were used as triplet photosensitizers for triplet–triplet annihilation (TTA) upconversion, to replace the long-established precious metal complex triplet photosensitizers such as those containing Pd(II)–Pt(II) atoms.