906379

COi8DFIC

≥98%

• Synonyma: 2,2′-[[4,4,11,11-tetrakis(4-hexylphenyl)-4,11-dihydrothieno[2′,3′:4,5]thieno[2,3-d]thieno[2′′′′,3′′′′:4′′′,5′′′]thieno[2′′′,3′′′:4′′,5′′]pyrano[2′′,3′′:4′,5′]thieno[2′,3′:4,5]thieno[3,2-b]pyran-2,9-diyl]bis[methylidyne(5,6-difluoro, NFA146, O6T-4F, PCE146
• Empirický vzorec (Hillův zápis): C₉₄H₇₆F₄N₄O₄S₆
• Číslo CAS: 2184266-44-0
• Molekulová hmotnost: 1594.02
• UNSPSC Code: 12352101
• NACRES: NA.23

Vlastnosti

• description: Band gap: 1.62 eV
• assay: ≥98%
• form: solid
• solubility: soluble (chloroform, CB and ODCB)
• orbital energy: HOMO -5.5 eV ; LUMO -3.88 eV
• SMILES string: Fc1cc2c(cc1F)C(=C(C#N)C#N)\C(=C/c3[s]c4c([s]c5c4C(Oc8c9[s]c%10c(c9[s]c85)OC(c%13c%14[s]c(cc%14[s]c%13%10)\C=C%15/C(=O)c%16c(cc(c(c%16)F)F)C/%15=C(C#N)C#N)(c%12ccc(cc%12)CCCCCC)c%11ccc(cc%11)CCCCCC)(c7ccc(cc7)CCCCCC)c6ccc(cc6)CCCCCC)c3)\C2=O
• InChI: 1S/C94H76F4N4O4S6/c1-5-9-13-17-21-53-25-33-59(34-26-53)93(60-35-27-54(28-36-60)22-18-14-10-6-2)79-85-75(43-63(107-85)41-69-77(57(49-99)50-100)65-45-71(95)73(97)47-67(65)81(69)103)109-87(79)89-83(105-93)91-92(111-89)84-90(112-91)88-80(86-76(110-88)44-64(10
• InChI key: QPSUTBMJXUUOIC-YTMZJGCBSA-N

Popis

General description

COi8DFIC or O6T-4F is a highly efficient, n-type, low-bandgap nonfullerene acceptor with strong NIR absorption.
In a recent study, COi8DFIC or O6T-4F was selected in a Tandem cell by computer assited design and gave a record PCE of 17.3∃% for fabricated organic solar cells.
COi8DFIC or O6T-4F is frequently selected to blend with a narrow-bandgap donor material and another narrow bandgap acceptor material to fabricate ternary organic solar cells. The PTB7-Th:COi8DFIC:PC71BM ternary cells offered a PCE of 14.08%. By further adopting a post-annealing process, an outstanding PCE of 14.62% can be achieved. Furthermore, the device utilizing COi8DFIC exhibited a good thermal stability with PCEs over 13.5% in a wide temperature range (70–160 °C).

Application

COi8DFIC is primarily utilized as a non-fullerene acceptor in OPV devices. It exhibits a broad absorption spectrum, enabling it to absorb light across a wide range of wavelengths, including the visible and near-infrared regions. This property allows for efficient utilization of a broader range of solar radiation, enhancing the light-harvesting capability of the OPV device. COi8DFIC can be employed as the electron transport material in OFET devices.

COi8DFIC or O6T-4F is a highly efficient, n-type, low-bandgap nonfullerene acceptor with strong NIR absorption
In a recent study, COi8DFIC or O6T-4F was selected in a Tandem cell by computer assited design and gave a record PCE of 17.3% for fabricated organic solar cells.

Tandem Cell Device performance:
ITO/ZnO/PFN-Br/PBDB-T:F-M/M-PEDOT/ZnO/PTB7- Th:O6T-4F:PC71BM/MoO₃/Ag
V_oc=1.642 V
J_sc=14.35 mA/cm²
FF=73.7%
PCE=17.3%
COi8DFIC or O6T-4F is frequently selected to blend with a narrow-bandgap donor material and another narrow bandgap acceptor material to fabricate ternary organic solar cells. The PTB7-Th:COi8DFIC:PC71BM ternary cells offered a PCE of 14.08%. By further adopting a post-annealing process, an outstanding PCE of 14.62% can be achieved. Furthermore, the device utilizing COi8DFIC exhibited a good thermal stability with PCEs over 13.5% in a wide temperature range (70-160 °C).

Device structure:
ITO/ZnO/PTB7-Th:COi8DFIC:PC71BM/MoO₃/Ag

• Before annealing

V_oc=0.702 V
J_sc=27.74 mA/cm²
FF=0.701
PCE=13.65%

• After annealing at 80°C

V_oc=0.727 V
J_sc=27.39 mA/cm²
FF=0.734
PCE=14.62%

COi8DFIC, an efficient non-fullerene acceptor material, has a strong near-infrared range (NIR) light absorption. It can be used as an n-type small molecule acceptor material for the fabrication of polymeric solar cells.

Bezpečnostní informace

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable