Asli Ugur
Massachusetts Institute of Technology
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Asli Ugur.
Macromolecular Rapid Communications | 2015
Hilal Goktas; Xiaoxue Wang; Asli Ugur; Karen K. Gleason
The synthesis and characterization of poly(3,4-ethylenedioxythiophene) (PEDOT) using water-assisted vapor phase polymerization (VPP) and oxidative chemical vapor deposition (oCVD) are reported. For the VPP PEDOT, the oxidant, FeCl3 , is sublimated onto the substrate from a heated crucible in the reactor chamber and subsequently exposed to 3,4-ethylenedioxythiophene (EDOT) monomer and water vapor in the same reactor. The oCVD PEDOT was produced by introducing the oxidant, EDOT monomer, and water vapor simultaneously to the reactor. The enhancement of doping and crystallinity is observed in the water-assisted oCVD thin films. The high doping level observed at UV-vis-NIR spectra for the oCVD PEDOT, suggests that water acts as a solubilizing agent for oxidant and its byproducts. Although the VPP produced PEDOT thin films are fully amorphous, their conductivities are comparable with that of the oCVD produced ones.
Nanotechnology | 2017
Noa Lachman; Itai Y. Stein; Asli Ugur; Dale L. Lidston; Karen K. Gleason; Brian L. Wardle
Here, we report the fabrication of aligned carbon nanotube (A-CNT)/conducting polymer (CP) heterostructures with both uniform conformal and periodic beaded polymer morphologies via oxidative chemical vapor deposition of poly(ethylenedioxythiophene). Periodic beaded CP morphologies are realized utilizing the Plateau-Rayleigh instability to transform the original uniform conformal film, yielding a beaded CP morphology with a >50% enhancement in specific surface area (SSA). Modeling indicates that this SSA increase originates from the internal volume of the A-CNTs becoming available for adsorption, and that these internal A-CNT surfaces, if they could be made accessible to electrolyte ions, could lead to >30% enhancement of specific gravimetric and volumetric capacitances of current state-of-the-art A-CNT/CP heterostructures.
Nano Energy | 2014
Yue Zhou; Haiping Xu; Noa Lachman; Mehdi Ghaffari; Shan Wu; Yang Liu; Asli Ugur; Karen K. Gleason; Brian L. Wardle; Q. M. Zhang
Advanced Materials Interfaces | 2014
B. Reeja-Jayan; Peter Kovacik; Rong Yang; Hossein Sojoudi; Asli Ugur; Do Han Kim; Christy D. Petruczok; Xiaoxue Wang; Andong Liu; Karen K. Gleason
Advanced Materials Interfaces | 2014
Noa Lachman; Haiping Xu; Yue Zhou; Mehdi Ghaffari; Minren Lin; Dhiman Bhattacharyya; Asli Ugur; Karen K. Gleason; Q. M. Zhang; Brian L. Wardle
Solar Energy Materials and Solar Cells | 2017
Mariela Lizet Castillo; Asli Ugur; Hossein Sojoudi; Nathan Nakamura; Zhe Liu; Fen Lin; Riley E. Brandt; Tonio Buonassisi; B. Reeja-Jayan; Karen K. Gleason
Advanced Materials Interfaces | 2014
B. Reeja-Jayan; Peter Kovacik; Rong Yang; Hossein Sojoudi; Asli Ugur; Do Han Kim; Christy D. Petruczok; Xiaoxue Wang; Andong Liu; Karen K. Gleason
Advanced Materials | 2015
Asli Ugur; Ferhat Katmis; Mingda Li; Lijun Wu; Yimei Zhu; Kripa K. Varanasi; Karen K. Gleason
Advanced Functional Materials | 2018
Dan Soto; Asli Ugur; Taylor A. Farnham; Karen K. Gleason; Kripa K. Varanasi