TY - JOUR
T1 - Anion Effect on the CuII-Neocuproine Mediator and Its Electrocatalysts for Dye-Sensitized Solar Cells
T2 - Polymeric Chalcogenides of PEDOT-PEDTT and [Ag2(SePh)2]n
AU - Lin, Xin Bei
AU - Wu, Chih Ya
AU - Han, Bo Yu
AU - Lee, Yu Chien
AU - Lin, Yin Fan
AU - Li, Sie Rong
AU - Sun, Shih Sheng
AU - Li, Chun Ting
N1 - Publisher Copyright:
© 2024 American Chemical Society.
PY - 2024/11/13
Y1 - 2024/11/13
N2 - The synthetical methodology for the [Cu(dmp)2]2+/1+ (dmp = 2,9-dimethyl-1,10-phenanthroline; neocuproine) complexes has been systematically investigated by using various copper precursors, including CuCl2, Cu(NO3)2, and Cu(ClO4)2. After an anion exchange to trifluoromethanesulfonimide (TFSI), the tetra-coordinated CuII(dmp)2(TFSI)2-Cu(ClO4)2 (7.43%) outperformed the penta-coordinated CuII(dmp)2(TFSI)(NO3)-Cu(NO3)2 (4.30%) and CuII(dmp)2(TFSI)(Cl)-CuCl2. Polymeric chalcogenides, including a conducting copolymeric electrode of PEDOT-PEDTT [PEDOT = poly(3,4-ethylenedioxythiophene); PEDTT = poly(3,4-ethylenedithiothiophene)] and a coordination polymeric electrode of silver bezeneselenolate ([Ag2(SePh)2]n; mithrene), are introduced as the electrocatalysts for [Cu(dmp)2]2+/1+ for the first time. After optimization, dye-sensitized solar cells (DSSCs) based on carbon cloth (CC)/AgSePh-30 (10.18%) showed superior electrocatalytic ability compared to the benchmark CC/Pt (7.43%) due to numerous active sites provided by electron-donating Se atoms, high film roughness, and bottom-up 2D charge transfer routes. The DSSC based on CC/PEDTT-50 (10.38%) also outperformed CC/Pt due to numerous active sites provided by electron-donating S atoms and proper energy band structure. This work sheds light on the future design and synthesis in Cu-complex mediators and functional polymeric chalcogenides for high-performance DSSCs.
AB - The synthetical methodology for the [Cu(dmp)2]2+/1+ (dmp = 2,9-dimethyl-1,10-phenanthroline; neocuproine) complexes has been systematically investigated by using various copper precursors, including CuCl2, Cu(NO3)2, and Cu(ClO4)2. After an anion exchange to trifluoromethanesulfonimide (TFSI), the tetra-coordinated CuII(dmp)2(TFSI)2-Cu(ClO4)2 (7.43%) outperformed the penta-coordinated CuII(dmp)2(TFSI)(NO3)-Cu(NO3)2 (4.30%) and CuII(dmp)2(TFSI)(Cl)-CuCl2. Polymeric chalcogenides, including a conducting copolymeric electrode of PEDOT-PEDTT [PEDOT = poly(3,4-ethylenedioxythiophene); PEDTT = poly(3,4-ethylenedithiothiophene)] and a coordination polymeric electrode of silver bezeneselenolate ([Ag2(SePh)2]n; mithrene), are introduced as the electrocatalysts for [Cu(dmp)2]2+/1+ for the first time. After optimization, dye-sensitized solar cells (DSSCs) based on carbon cloth (CC)/AgSePh-30 (10.18%) showed superior electrocatalytic ability compared to the benchmark CC/Pt (7.43%) due to numerous active sites provided by electron-donating Se atoms, high film roughness, and bottom-up 2D charge transfer routes. The DSSC based on CC/PEDTT-50 (10.38%) also outperformed CC/Pt due to numerous active sites provided by electron-donating S atoms and proper energy band structure. This work sheds light on the future design and synthesis in Cu-complex mediators and functional polymeric chalcogenides for high-performance DSSCs.
KW - Cu-neocuproine
KW - dye-sensitized solar cells
KW - electrocatalyst
KW - PEDTT
KW - polymeric chalcogenides
UR - https://www.scopus.com/pages/publications/85204554618
UR - https://www.scopus.com/pages/publications/85204554618#tab=citedBy
U2 - 10.1021/acsami.4c08861
DO - 10.1021/acsami.4c08861
M3 - Article
C2 - 39303063
AN - SCOPUS:85204554618
SN - 1944-8244
VL - 16
SP - 61820
EP - 61831
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 45
ER -