Using light to control matter has captured the imagination of scientists for generations, as
there is an abundance of photons at our disposal. Yet delivering photons beyond the surface …

The effective incorporation of photovoltaic (PV) elements into the urban environment,
specifically in buildings, is a challenging process. Apart from the aesthetic limitations of …

Photon upconversion (UC), the process of combining two or more low-energy photons to
generate a higher-energy excited state, is of interest for applications ranging from imaging to …

In this review, the author highlights the history, importance and emerging applications of up-
conversion (UC) assisted solar cells. An attempt has been made to elucidate the …

Organic semiconductors with optoelectronic properties have attracted intensive interests in
the fields of organic light-emitting diodes, organic photovoltaics and organic photodetectors …

Low‐power photon upconversion (UC) based on sensitized triplet–triplet annihilation (sTTA)
is considered as the most promising upward wavelength‐shifting technique to enhance the …

Photon upconversion via triplet–triplet annihilation (TTA-UC) is a promising strategy for
increasing maximum theoretical solar cell efficiencies by a factor of 1.3. However, one factor …

For the molecular properties in which energy transfer/migration is determinantal, such as
triplet-triplet annihilation-based photon up-conversion (TTAUC), the overall performance is …

Two anthracene dimers, 9, 9′-BiAn and 2, 9-BiAn, linked symmetrically or asymmetrically
with a single bond were used as emitters in triplet–triplet annihilation upconversion (TTA …

Upconversion (UC) of sub-bandgap photons extends the effective light absorption range of
photovoltaic and photocatalytic devices, allowing them to reach higher conversion …