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Organic (TPyP)Eu2[Pc(OPh)8]2/CdS Self-assembled Hybrid Nano-Transistors with High Ambipolar Performance
Journal of Materials Research and Technology ( IF 6.2 ) Pub Date : 2020-10-07 , DOI: 10.1016/j.jmrt.2020.09.096
Xia Zhang , Lihong Liu , Jiaqi Xiao , Zhou Sun , Ping Li

A new organic/inorganic hybrid bicomponent nanomaterial was obtained by quasi-Langmuir-Shafer (QLS) method with a mixed (phthalocyaninato)-(porphyrinato) europium complex (TPyP)Eu2[Pc(OPh)8]2 and the inorganic material CdS. The conductivity of the (TPyP)Eu2[Pc(OPh)8]2/CdS hybrid film (1.9 × 10−7 S cm−1) was greatly improved compared to the (TPyP)Eu2[Pc(OPh)8]2 film (6 × 10−10 S cm−1). In good contrast, the (TPyP)Eu2[Pc(OPh)8]2/CdS bicomponent thin film transistor devices constructed by QLS method revealed excellent ambipolar performance, much larger hole mobility (0.09 cm2 V−1 s−1; on/off ratio of 104) and electron mobility (0.01 cm2 V−1 s−1; on/off ratio of 103) when compared with single-component (TPyP)Eu2[Pc(OPh)8] film that showed 6.9 × 10−7 cm2 V−1 s−1 hole mobility (on/off ratio of 102) and 3.07 × 10−5 cm2 V−1 s−1 electron mobility (on/off ratio of 102). In addition, SEM and AFM results also showed that the bicomponent film had a uniform particle size distribution and a dense film structure. These properties could reduce the obstacles and carrier traps in the film and stabilize its electrical properties, which could greatly facilitate the transport of electrons and holes. The research work opens a new way for the preparation of stable, high-performance ambipolar OTFT devices in the air through molecular design and device assembly technology.



中文翻译:

具有高双极性性能的有机(TPyP)Eu 2 [Pc(OPh)8 ] 2 / CdS自组装混合纳米晶体管

(卟啉)铕络合物(TPyP)铕-通过准朗缪尔-谢弗(QLS)方法用一个混合的(酞菁)得到的新的有机/无机杂化双组分纳米材料2 [PC(OPH)8 ] 2和无机材料的CdS 。的(TPyP)Eu的电导率2 [PC(OPH)8 ] 2 / CdS的混合膜(1.9×10 -7 小号厘米-1)得到极大改善相比(TPyP)的Eu 2 [PC(OPH)8 ] 2膜(6×10 -10  S cm -1)。与之形成鲜明对比的是(TPyP)Eu 2 [Pc(OPh)8 ] 2通过QLS方法构造的/ CdS双组分薄膜晶体管器件显示出优异的双极性性能,更大的空穴迁移率(0.09 cm 2  V -1  s -1;开/关比10 4)和电子迁移率(0.01 cm 2 V -1  s)-1;开/关比为10 3),与显示6.9×10 -7 cm 2  V -1  s -1空穴迁移率的单组分(TPyP)Eu 2 [Pc(OPh)8 ]膜相比(开/关截止比为10 2)和3.07×10 -5  cm 2  V-1  s -1电子迁移率(开/关比为10 2)。另外,SEM和AFM结果还表明双组分膜具有均匀的粒度分布和致密的膜结构。这些性质可以减少薄膜中的障碍物和载流子陷阱并稳定其电性质,这可以极大地促进电子和空穴的传输。这项研究工作为通过分子设计和器件组装技术在空中制备稳定,高性能的双极性OTFT器件开辟了一条新途径。

更新日期:2020-10-07
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