Synthesis and Characterization of the Donor-Acceptor Conjugated Polymer PBDB-T Implementing Group IV Element Germanium.

Synthesis and Characterization of the Donor-Acceptor Conjugated Polymer PBDB-T Implementing Group IV Element Germanium.
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DOI:
10.3390/polym15112429
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发表时间:
2023-05-23
期刊:
影响因子:
5
通讯作者:
Kim YG
Kim YG
中科院分区:
工程技术3区
文献类型:
--
作者:
Abousamra WH;Thomas D;Yang D;Islam SM;Winstead C;Kim YG

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本文合成并表征了一种新型的二维共轭电子给体-受体(D-A)共聚物(PBDB-T-Ge),其中三乙基锗取代基被引入到聚合物的电子给体单元中。使用Turbo-Grignard反应将IV族元素引入聚合物中,产率为86%。这种相应的聚合物PBDB-T-Ge表现出最高占据分子轨道(HOMO)能级下移至−5.45 eV,而最低未占分子轨道(LUMO)能级为−3.64 eV。PBDB-T-Ge的紫外-可见吸收峰和荧光发射峰分别位于484 nm和615 nm处。
Here, we synthesized and characterized a novel two-dimensional (2D) conjugated electron donor–acceptor (D-A) copolymer (PBDB-T-Ge), wherein the substituent of triethyl germanium was added to the electron donor unit of the polymer. The Turbo–Grignard reaction was used to implement the group IV element into the polymer, resulting in a yield of 86%. This corresponding polymer, PBDB-T-Ge, exhibited a down-shift in the highest occupied molecular orbital (HOMO) level to −5.45 eV while the lowest unoccupied molecular orbital (LUMO) level was −3.64 eV. The peaks in UV-Vis absorption and the PL emission of PBDB-T-Ge were observed at 484 nm and 615 nm, respectively.
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