Synthesis and Opto-Electrical Properties of Novel Conjugated Small Molecule Bearing a B←N Moiety

Ryu, Ka Yeon; Sung, Dan Bi; Kwon, Yong Ju; Kim, Hyun Yeong; Lee, Chongmok; Kim, Won‐Suk; Kim, Kyungkon

doi:10.1007/s13233-020-8113-1

Cited by 1 publication

(1 citation statement)

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“…B←N‐bridged fluorene was used as the linker of DPP dimers to obtain 121, which exhibited a high open‐circuit voltage ( V OC ) of 0.91 V upon blending with PC71BM as the photosensitive layer due to the low‐lying HOMO of the donor. [ 182 ] Otherwise, moderate J SC of 4.79 mA/cm 2 and poor FF of 32% were produced for the devices due to the nonoptimal phase separation and unbalanced hole/electron mobilities. Duan et al suspended two B←N‐bridged fluorene units to a DPP moiety symmetrically to adjust the aggregation style.…”

Section: B←n‐embedded Opv Materialsmentioning

confidence: 99%

B←N Coordination: From Chemistry to Organic Photovoltaic Materials

Huang

Wang

Xiang

et al. 2021

Adv Energy and Sustain Res

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Coordination between boron Lewis acid and nitrogen Lewis base (B←N) is a classically chemical issue that has been known for several decades. Recently, this B←N chemistry developed into a new stage toward electronic materials, e.g., adjusting optoelectronic properties of N‐based conjugated molecules via adding B Lewis acids, synthesizing B←N‐bridged conjugated units, and further constructing B←N‐embedded organic photovoltaic (OPV) materials. Herein, these progresses are systematically summarized starting from certain chemical issues concerning B←N coordination, e.g., Lewis acidity of typical B Lewis acids and their interactions with N‐contained conjugated molecules. Then, some fused and ladder‐type B←N‐bridged units are reviewed in terms of the relationship between molecular structures and optoelectronic properties. Finally, the recently flourished B←N‐embedded OPV materials are summarized. The prospect of OPV materials concerning B←N coordination is also proposed, hoping to attract more attention to this filed and motivate its rolling rapidly.

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Section: B←n‐embedded Opv Materialsmentioning

confidence: 99%