Phenothiazine is one of the most extensively investigated aromatic compounds owing to its
unique optical and electronic properties, low cost, and easy functionalization. In recent …

The photophysical processes involved in the electron donor‐acceptor thermally activated
delayed fluorescence (TADF) emitters are complicated and controversial. The recent …

Based on spin‐orbit charge transfer intersystem crossing mechanism, two heavy‐atom‐free
photosensitizers (PSs) BDP1/BDP2 with absorption maxima at 506 nm/660 nm were …

A series of new naphthalimide and phenothiazine-based push–pull systems (NPI-PTZ1–5),
in which we structurally modulate the oxidation state of the sulfur atom in the thiazine ring, ie …

Multiphoton excited luminescence is of paramount importance in the field of optical detection
and biological photonics. Self-trapped exciton (STE) emission with self-absorption-free …

We prepared conceptually novel, fully rigid, spiro compact electron donor (Rhodamine B,
lactam form, RB)/acceptor (naphthalimide; NI) orthogonal dyad to attain the long‐lived triplet …

Molecular organic fluorophores are currently used in organic light-emitting diodes, though
non-emissive triplet excitons generated in devices incorporating conventional fluorophores …

Twisted organic compounds play a significant role in the development of solid-state
fluorescent materials and have gained substantial attention owing to their potential …

Photodynamic therapy (PDT) is an attractive method for cancer treatment. Triplet
photosensitizers (PSs) are critical for this method; upon photoexcitation, efficient intersystem …

A long-lived triplet charge separated state (3CS state lifetime: 0.56 μs) was observed in a
compact electron donor–acceptor dyad with electron donor phenothiazine (PTZ) and …