TY - JOUR
T1 - Tyrian purple
T2 - An ancient natural dye for cross-conjugated n-type charge transport
AU - Fallon, Kealan J.
AU - Wijeyasinghe, Nilushi
AU - Leventis, Anastasia
AU - Marin-Beloqui, Jose M.
AU - Toolan, Daniel T.W.
AU - Al-Hashimi, Mohammed
AU - Clarke, Tracey M.
AU - Anthopoulos, Thomas D.
AU - Bronstein, Hugo
N1 - Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2021/3
Y1 - 2021/3
N2 - Herein, we present two novel organic semiconducting polymers synthesised from an ancient dye. By employing cross-conjugation within the polymer backbone as a synthetic strategy, we are able to engineer optical gaps such that the novel materials absorb over the entire visible spectrum. The cross-conjugated polymers exhibited relatively high n-type charge transport performance in organic field-effect transistors, a rare characteristic for this type of polymer. Quantum chemical calculations provide insight into this behaviour, suggesting that, whilst conjugation along the HOMO is indeed inhibited via molecular design, these materials possess highly delocalized LUMOs, facilitating high n-type charge transport.
AB - Herein, we present two novel organic semiconducting polymers synthesised from an ancient dye. By employing cross-conjugation within the polymer backbone as a synthetic strategy, we are able to engineer optical gaps such that the novel materials absorb over the entire visible spectrum. The cross-conjugated polymers exhibited relatively high n-type charge transport performance in organic field-effect transistors, a rare characteristic for this type of polymer. Quantum chemical calculations provide insight into this behaviour, suggesting that, whilst conjugation along the HOMO is indeed inhibited via molecular design, these materials possess highly delocalized LUMOs, facilitating high n-type charge transport.
UR - http://www.scopus.com/inward/record.url?scp=85103593643&partnerID=8YFLogxK
U2 - 10.1039/d0tc05553k
DO - 10.1039/d0tc05553k
M3 - Article
AN - SCOPUS:85103593643
SN - 2050-7526
VL - 9
SP - 4200
EP - 4205
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 12
ER -