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 …

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

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 …

To study the charge separation (CS) and long-lived CS state, we prepared a series of dyads
based on naphthalimide (NI, electron acceptor) and phenothiazine (PTZ, electron donor) …

Triplet-triplet annihilation (TTA) upconversion-based materials have potential application in
the broad range of research areas, including photocatalysis and life sciences. However …

Long-lived charge separated (CS) triplet state (2.6 μs) and thermally activated delayed
fluorescence (TADF)[τ= 282 ns (90.4%)/2.4 μs (9.6%)] were observed in an anthraquinone …