TY - JOUR
T1 - Synthesis, Characterization and Singlet Fission Behaviors of Heteroatom-Doped Polycyclic Aromatic Hydrocarbons with (β, β) Connected Furan/Thiophene Ring
AU - Huang, Wenting
AU - Qiu, Meizhen
AU - Yu, Fei
AU - Chen, Jiawen
AU - Li, Xiaojun
AU - Wei, Qi
AU - Xing, Guichuan
AU - Wu, Bo
AU - Chen, Wangqiao
AU - Zhang, Qichun
PY - 2023/5/22
Y1 - 2023/5/22
N2 - Singlet fission (SF) has been proven to be an effective strategy to overcome the Shockley–Queisser limit of photovoltaics. However, the materials suitable for SF are relatively rare due to the strict requirements for the occurrence of this process. In the present study, we report the first preparation of two heteroatoms (O and S)-doped polycyclic aromatic hydrocarbons (PAHs) molecules with (β, β) connected furan/thiophene ring. The optical and physiochemical properties of both compounds are investigated by a variety of spectroscopies, including UV–vis absorption, photoluminescence and cyclic voltammetry. In addition, their ultrafast excited state dynamics are studied by femtosecond transient absorption. Experimental data showed that the singlet fission efficiency was improved by 2 times when replacing oxygen with sulfur atom, which could provide some guidelines in designing singlet fission materials with better efficiency. © 2023 Wiley-VCH GmbH.
AB - Singlet fission (SF) has been proven to be an effective strategy to overcome the Shockley–Queisser limit of photovoltaics. However, the materials suitable for SF are relatively rare due to the strict requirements for the occurrence of this process. In the present study, we report the first preparation of two heteroatoms (O and S)-doped polycyclic aromatic hydrocarbons (PAHs) molecules with (β, β) connected furan/thiophene ring. The optical and physiochemical properties of both compounds are investigated by a variety of spectroscopies, including UV–vis absorption, photoluminescence and cyclic voltammetry. In addition, their ultrafast excited state dynamics are studied by femtosecond transient absorption. Experimental data showed that the singlet fission efficiency was improved by 2 times when replacing oxygen with sulfur atom, which could provide some guidelines in designing singlet fission materials with better efficiency. © 2023 Wiley-VCH GmbH.
KW - isobenzofuran
KW - isobenzothiophene
KW - polycyclic aromatic hydrocarbons
KW - singlet fission
KW - transient absorption spectroscopy
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U2 - 10.1002/chem.202203947
DO - 10.1002/chem.202203947
M3 - RGC 21 - Publication in refereed journal
SN - 0947-6539
VL - 29
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 29
M1 - e202203947
ER -
