TY - JOUR
T1 - Acenaphthylene-Based Chromophores for Dye-Sensitized Solar Cells
T2 - Synthesis, Spectroscopic Properties, and Theoretical Calculations
AU - Malta, Gabriela
AU - Pina, João
AU - Lima, J. Carlos
AU - Parola, A. Jorge
AU - Branco, Paula S.
N1 - info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0008%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FQUI-QOR%2F7450%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00313%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00313%2F2020/PT#
info:eu-repo/grantAgreement/FCT/Projectos de IC&DT de Consolidação de Competências e Recursos em Investigação - 2012/RECI%2FBBB-BQB%2F0230%2F2012/PT#
Publisher Copyright:
© 2024 The Authors. Published by American Chemical Society.
J. Pina acknowledges FCT for the funding through the program CEEC-INST/00152/2018/CP1570/CT0012 (DOI 10.54499/CEECINST/00152/2018/CP1570/CT0012). FCT/MCTES is also acknowledged for the National NMR Facility (RECI/BBB-BEP/ 0124/2012) and PhD grant PD/BD/145324/2019/ (G.M.). The authors would like to thank Hugo Cruz for his help with the cyclic voltammetry measurements and Tiago Mateus for his assistance with IPCE measurements.
PY - 2024/3/26
Y1 - 2024/3/26
N2 - A set of acenaphthylene dyes with arylethynyl π-bridges was tested for dye-sensitized solar cells (DSSCs). Crucial steps for the extension of the conjugated system from the acenaphylene core involved Sonogashira coupling reactions. Phenyl, thiophene, benzotriazole, and thieno-[3,2-b]thiophene moieties were employed to extend the conjugation of the π-bridges. The systems were characterized by cyclic voltammetry and by UV-vis absorption and emission. The spectroscopic characterization showed that the last three bridges resulted in red-shifted absorption and emission spectra relative to the parent phenyl-bridged compound, in accordance with TD-DFT calculations. The phenylethynyl derivative 6a achieved a conversion efficiency of 2.51% with Voc, Jsc, and FF values of 0.365 V, 13.32 mA/cm2, and 0.52, respectively. The efficiency of this compound improved to 3.15% with the addition of CDCA (10 mM), representing the best efficiency result in this study.
AB - A set of acenaphthylene dyes with arylethynyl π-bridges was tested for dye-sensitized solar cells (DSSCs). Crucial steps for the extension of the conjugated system from the acenaphylene core involved Sonogashira coupling reactions. Phenyl, thiophene, benzotriazole, and thieno-[3,2-b]thiophene moieties were employed to extend the conjugation of the π-bridges. The systems were characterized by cyclic voltammetry and by UV-vis absorption and emission. The spectroscopic characterization showed that the last three bridges resulted in red-shifted absorption and emission spectra relative to the parent phenyl-bridged compound, in accordance with TD-DFT calculations. The phenylethynyl derivative 6a achieved a conversion efficiency of 2.51% with Voc, Jsc, and FF values of 0.365 V, 13.32 mA/cm2, and 0.52, respectively. The efficiency of this compound improved to 3.15% with the addition of CDCA (10 mM), representing the best efficiency result in this study.
UR - http://www.scopus.com/inward/record.url?scp=85188158414&partnerID=8YFLogxK
U2 - 10.1021/acsomega.4c01201
DO - 10.1021/acsomega.4c01201
M3 - Article
C2 - 38560006
AN - SCOPUS:85188158414
SN - 2470-1343
VL - 9
SP - 14627
EP - 14637
JO - ACS Omega
JF - ACS Omega
IS - 12
ER -