Kagan, C. R., Mitzi, D. B. & Dimitrakopoulos, C. D. Organic-inorganic hybrid materials as semiconducting channels in thin-film field-effect transistors. Science 286, 945-947
ABSTRACT Organic-inorganic hybrid materials promise both the superior carrier mobility of inorganic semiconductors and the processability of organic materials. A thin-film field-effect transistor having an organic-inorganic hybrid material as the semiconducting channel was demonstrated. Hybrids based on the perovskite structure crystallize from solution to form oriented molecular-scale composites of alternating organic and inorganic sheets. Spin-coated thin films of the semiconducting perovskite (C(6)H(5)C(2)H(4)NH(3))(2)SnI(4) form the conducting channel, with field-effect mobilities of 0.6 square centimeters per volt-second and current modulation greater than 10(4). Molecular engineering of the organic and inorganic components of the hybrids is expected to further improve device performance for low-cost thin-film transistors.
Full-textDOI: · Available from: Christos Dimitrakopoulos, Aug 31, 2015
- SourceAvailable from: Xiong Jian
Organic Electronics 11/2015; 26:265-272. DOI:10.1016/j.orgel.2015.07.057 · 3.83 Impact Factor
- "The halide perovskite (CH 3 NH 3 PbX 3 , X = Cl, Br and I) solar cells (PSCs) have attracted considerable attention due to their great advantages, for example, direct band gap, large absorption coefficient , high carrier mobility    . These merits accelerate the rapid development of PSC devices with the power conversion efficiencies (PCEs) increasing from 3.8% to over 20%       . "
[Show abstract] [Hide abstract]
- "Polymer/inorganic hybrids have attracted much attention due to their potential applications in many areas, such as thin-film field-effect transistors and solar cells. They provide better electrical properties due to the direct interfacial interaction of polymers with inorganic materials where the polymers act as donors and inorganic parts as acceptors  . "
ABSTRACT: Polyaniline/TiO2 hybrid nanoplates were synthesized via a sol–gel chemical method. We added TiO2 nanocrystallites of 3–5 nm in diameter to the chemical polymerization of aniline. The loading ratio of TiO2 nanocrystallites to polyaniline altered the morphology of the hybrids from plate-like grains to aggregates. The cyclic voltammetry on the obtained hybrid material revealed that the plate-like structure was more advantageous for the electrochemical stability. The chemical bonding established between polyaniline and TiO2, confirmed by Fourier transformed infrared spectroscopy, is likely to be responsible for the enhanced chemical stability. âº Polyaniline/TiO2 hybrid nanoplates are synthesized via a sol–gel chemical method. âº The morphology of hybrids changes from plate like grains to aggregates. âº The strong interfacial interaction between polyaniline and TiO2 nanocrystallites is confirmed. âº The strong interaction results in better electrochemical stability.The Chemical Engineering Journal 06/2012; 192:262. DOI:10.1016/j.cej.2012.04.004
[Show abstract] [Hide abstract]
- "Recently, organic thin-film transistors (OTFTs) have attracted much attention from several advantages such as the mechanical flexibility, the low-temperature processing capability at low cost, and the applicability to plastic substrates     over conventional silicon-based driving elements. In contrast to many of the OTFTs that suffer generally from poor electrical properties, for example, low current on–off ratio and low charge carrier mobility  , pentacene-based TFTs fabricated by vacuum-deposition have shown the carrier mobility comparable to the level of amorphous silicon   . "
ABSTRACT: We describe how the charge carrier injection and transport are influenced by thermal cracks in a 6,13-bis(triisopropylsilylethynyl) (TIPS) pentacene film in terms of the contact resistance and the channel resistance in a TIPS pentacene thin-film transistor (TFT). Through a post-thermal annealing (PTA) process at a certain temperature Ta, the high structural order of TIPS-pentacene molecules is produced without thermal cracks, the carrier mobility of the TIPS pentacene TFT is maximized, and both the contact resistance and the channel resistance are minimized. Our quantitative description of the relationship between the PTA treatment and the interfacial resistance behavior would provide a useful basis for understanding the thermal stability and the electrical performance of a solution-processed organic TFT.Solid-State Electronics 09/2011; 63(1):163-166. DOI:10.1016/j.sse.2011.05.014 · 1.51 Impact Factor