Phthalocyanine Composites as High‐Mobility Semiconductors for Organic Thin‐Film Transistors

Zhang, Jian; Wang, Haibo; Yan, Xuanjun; Wang, Jun; Shi, Jianwu; Yan, Donghang

doi:10.1002/adma.200401113

Cited by 44 publications

(20 citation statements)

References 20 publications

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“…Th e blend fi lms of CuPc/CoPc and CuPc/NiPc have been shown to be more effi cient fi eld-eff ect transistors than their single-component counterparts [65], which may be attributable to charge transfer between the materials and uniform fi lm morphology due to their similar crystal structures. For blend fi lms of DH6T and α-6T [66], the fi eld-eff ect mobility and threshold voltage are located between those of the individual materials, and can be tuned by changing the constituent ratio.…”

Section: Co-evaporated Bulk Heterostructuresmentioning

confidence: 99%

Organic heterostructures in organic field-effect transistors

2010

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C onsiderable eff ort has been devoted to the development of low-cost, fl exible, large-area organic electronics for consumer products over the past two decades [1][2][3]. Organic fi eld-eff ect transistors (OFETs), important organic electronic devices, are of considerable interesting due to their wide range of potential applications, including use as display drivers and in identifi cation tags and sensors. Many methods have been developed to improve OFET performance by increasing mobility and the on/off ratio, and by reducing the threshold voltage. Th ese improvements have been achieved through the synthesis of new organic semiconductor materials, improving the device structure, controlling the deposition of crystalline organic fi lms and adopting various organic heterostructures. Recently, OFETs exhibiting mobility of the same order of magnitude as that of amorphous silicon FETs have been successfully demonstrated.Organic heterostructures have been used in organic light-emitting diodes (OLEDs) and organic photovoltaic (OPV) cells to improve device performance. In a typical double-layer OLED structure [4], the organic heterojunction reduces the onset voltage and improves the illumination effi ciency. Organic heterojunctions have also been used to improve the power conversion effi ciency of OPV cells by an order of magnitude over single-layer cells [5]. Ambipolar OFETs, which require that both electrons and holes be accumulated and transported in the device channel depending on the applied voltage, were fi rst realized by introducing organic heterostructures as active layers [6]. It is therefore clear that organic heterostructures have an important role in the continued development of organic electronic devices. Th e introduction of organic heterostructures has signifi cantly improved device performance and allowed new functions in many applications, and so understanding the eff ects of the organic heterostructure is desirable and necessary.Th ere has been considerable focus on understanding the interfacial electronic structures of organic heterostructure consisting of amorphous or semi-crystalline organic semiconductors [7][8][9]. Various models have been proposed to predict the alignment of the vacuum level and the interface dipole in certain organic heterojunctions [8,9], and a dependence of the interface dipole on the molecular orientation has been reported [10]. In crystalline organic semiconductors, the phenomenon of band bending [11,12] has been observed at organic/inorganic and organic/organic interfaces, and band transport, in which orbital-derived electronic bands are produced due to the overlap of the π-orbitals of adjacent molecules, has also been argued [13].Th e recent discovery of high conductivity in heterojunction transistors constructed using thin crystalline fi lms of p-type copper phthalocyanine (CuPc) and n-type copper-hexadecafl uoro-phthalocyanine (F 16 CuPc) as active layers has stimulated interest in organic heterojunctions [14][15][16]. Electron-and hole-accumulation layers have been ob...

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Section: Co-evaporated Bulk Heterostructuresmentioning

confidence: 99%

Organic heterostructures in organic field-effect transistors

2010

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“…Микрогели могут находить широкое практическое применение после моди фикации реакционными группами [16,17], поли мерными цепями [18,19], белками [20][21][22], благо родными металлами и оксидами [23][24][25][26][27], а также биоминералами. При помощи модификации водных микрогелей амфифильными лигандами, обладающими клиноподобной формой (рис.4), раз рабатываются новые адаптивные композиционные наноматериа лы (АКНМ).…”

Section: #8 / 70 / 2016unclassified

“…The microgels can find wide practical applica tion after modification by the reaction groups [16,17], polymer chains [18,19], proteins [20][21][22], noble metals and oxides [23][24][25][26][27], a nd a l so by biom inera l s. By modification of aqueous micro gels using amphiphilic ligands, having a Vlike shape (Fig.4), the new adaptive composite nano materials (ACNM) are developed. They can be used, for example, for drug delivery.…”

Section: #8 / 70 / 2016mentioning

confidence: 99%

High temporal resolution nanocalorimetry and its combination with micro- and nanofocus x-ray diffraction for study of functional nanostructured materials

Melniko¹,

Rodygin²,

Grafskaya³

et al. 2016

NanoRus

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“…Metallophthalocyanine (MPc) has analogous structure to metalloporphyrin, and it has been researched in applications of solar cell materials, optical data materials and catalytic oxidation materials due to its optical and electronic properties [4][5][6][7][8]. MPcs are known to catalyze the oxidation of alkenes and alkanes.…”

Section: Introductionmentioning

confidence: 99%