Now showing items 1-20 of 228

    • Surfactant-assisted individualization and dispersion of boron nitride nanotubes 

      McWilliams, Ashleigh D. Smith; Reyes, Carlos A. de los; Liberman, Lucy; Ergülen, Selin; Talmon, Yeshayahu; Pasquali, Matteo; A. Martí, Angel (2019)
      Boron nitride nanotubes (BNNTs) belong to a novel class of material with useful thermal, electronic and optical properties. However, the study and the development of applications of this material requires the formation of ...
    • Impact of chemical interface damping on surface plasmon dephasing 

      Therrien, Andrew J.; Kale, Matthew J.; Yuan, Lin; Zhang, Chao; Halas, Naomi J.; Christopher, Phillip (2019)
      The excellent light harvesting ability of plasmonic nanoparticles makes them promising materials for a variety of technologies that rely on the conversion of photons to energetic charge carriers. In such applications, ...
    • Entropic and Enthalpic Effects in Thin Film Blends of Homopolymers and Bottlebrush Polymers 

      Mah, Adeline Huizhen; Laws, Travis; Li, Wei; Mei, Hao; Brown, Chance C.; Ievlev, Anton; Kumar, Rajeev; Verduzco, Rafael; Stein, Gila E. (2019)
      We present a combined experimental and computational study of surface segregation in thin films of nearly athermal blends of linear and bottlebrush polymers. The lengths of bottlebrush backbone (Nb), bottlebrush side chain ...
    • Direct shape programming of liquid crystal elastomers 

      Barnes, Morgan; Verduzco, Rafael (2019)
      Liquid crystal elastomers (LCEs) are shape morphing materials promising for many applications including soft robotics, actuators, and biomedical devices, but current LCE synthesis techniques lack a simple method to program ...
    • Tailoring the Attraction of Polymers toward Surfaces 

      Stein, Gila E.; Laws, Travis S.; Verduzco, Rafael (2019)
      In polymer blends and block copolymers, one constituent (or segment type) is often enriched at the surface. This enrichment has important consequences for a variety of surface functions, including wettability, adhesive ...
    • Creating fluorescent quantum defects in carbon nanotubes using hypochlorite and light 

      Lin, Ching-Wei; Bachilo, Sergei M.; Zheng, Yu; Tsedev, Uyanga; Huang, Shengnan; Weisman, R. Bruce; Belcher, Angela M. (2019)
      Covalent doping of single-walled carbon nanotubes (SWCNTs) can modify their optical properties, enabling applications as single-photon emitters and bio-imaging agents. We report here a simple, quick, and controllable method ...
    • Direct triplet sensitization of oligothiophene by quantum dots 

      Xu, Zihao; Jin, Tao; Huang, Yiming; Mulla, Karimulla; Evangelista, Francesco A.; Egap, Eilaf; Lian, Tianquan (2019)
      Effective sensitization of triplet states is essential to many applications, including triplet–triplet annihilation based photon upconversion schemes. This work demonstrates successful triplet sensitization of a CdSe quantum ...
    • Highly Defective UiO-66 Materials for the Adsorptive Removal of Perfluorooctanesulfonate 

      Clark, Chelsea A.; Heck, Kimberly N.; Powell, Camilah D.; Wong, Michael S. (2019)
      Perfluorooctanesulfonate (PFOS) is a persistent organic pollutant that is bioaccumulative and toxic. While its use in most countries has been restricted to certain industrial applications due to environmental and health ...
    • Catalytic Converters for Water Treatment 

      Heck, Kimberly N.; Garcia-Segura, Sergi; Westerhoff, Paul; Wong, Michael S. (2019)
      Fresh water demand is driven by human consumption, agricultural irrigation, and industrial usage and continues to increase along with the global population. Improved methods to inexpensively and sustainably clean water ...
    • Microencapsulated Photoluminescent Gold for ppb-Level Chromium(VI) Sensing 

      Yin, Yiyuan B.; Coonrod, Christian L.; Heck, Kimberly N.; Lejarza, Fernando; Wong, Michael S. (2019)
      Luminescent gold nanoclusters (Au NCs) are a promising probe material for selective chemical sensing. However, low luminescent intensity and an incomplete understanding of the mechanistic origin of the luminescence limit ...
    • Hydrogen-generating behavior of Pd-decorated gold nanoparticles via formic acid decomposition 

      Zhao, Zhun; Heck, Kimberly N.; Limpornpipat, Pongsak; Qian, Huifeng; Miller, Jeffrey T.; Wong, Michael S. (2019)
      Formic acid is a promising hydrogen storage material where hydrogen is generated via metal-catalyzed decomposition. Bimetallic catalysts are active for this reaction, but the mechanism has not been fully proven. Palladium ...
    • Self assembled, sulfonated pentablock copolymer cation exchange coatings for membrane capacitive deionization 

      Jain, Amit; Weathers, Cierra; Kim, Jun; Meyer, Matthew D.; Walker, W. Shane; Li, Qilin; Verduzco, Rafael (2019)
      Membrane capacitive deionization (MCDI) is a simple and low-cost method for brackish water desalination involving reversible electrosorption using high surface area, porous electrodes paired with ion-exchange membranes. ...
    • Carbon nanotube woven textile photodetector 

      Zubair, Ahmed; Wang, Xuan; Mirri, Francesca; Tsentalovich, Dmitri E.; Fujimura, Naoki; Suzuki, Daichi; Soundarapandian, Karuppasamy P.; Kawano, Yukio; Pasquali, Matteo; Kono, Junichiro (2018)
      The increasing interest in mobile and wearable technology demands the enhancement of functionality of clothing through incorporation of sophisticated architectures of multifunctional materials. Flexible electronic and ...
    • Magnetooptics of Exciton Rydberg States in a Monolayer Semiconductor 

      Stier, A.V.; Wilson, N.P.; Velizhanin, K.A.; Kono, J.; Xu, X.; Crooker, S.A. (2018)
      We report 65 T magnetoabsorption spectroscopy of exciton Rydberg states in the archetypal monolayer semiconductor WSe2. The strongly field-dependent and distinct energy shifts of the 2s, 3s, and 4s excited neutral excitons ...
    • High-yield single-step catalytic growth of graphene nanostripes by plasma enhanced chemical vapor deposition 

      Hsu, Chen-Chih; Bagley, Jacob D.; Teague, Marcus L.; Tseng, Wei-Shiuan; Yang, Kathleen L.; Zhang, Yiran; Li, Yiliang; Li, Yilun; Tour, James M.; Yeh, N.-C. (2018)
      We report a single-step growth process of graphene nanostripes (GNSPs) by adding certain substituted aromatics (e.g., 1,2-dichlorobenzene) as precursors during the plasma enhanced chemical vapor deposition (PECVD). Without ...
    • Temperature dependence on the mass susceptibility and mass magnetization of superparamagnetic Mn–Zn–ferrite nanoparticles as contrast agents for magnetic imaging of oil and gas reservoirs 

      Morrow, Lauren; Snow, Brendan; Ali, Arfan; Maguire-Boyle, Samuel J.; Almutairi, Zeyad; Potter, David K.; Barron, Andrew R. (2018)
      The mass susceptibility (χmass) and mass magnetization (Mmass) were determined for a series of ternary manganese and zinc ferrite nanoparticles (Mn–Zn ferrite NPs, MnxZn1−xFe2O4) with different Mn:Zn ratios (0.08 ≤ x ≤ ...
    • Non-uniform Stress-free Strains in a Spherically Symmetrical Nano-sized Particle and Its Applications to Lithium-ion Batteries 

      Meng, Qingping; Wu, Lijun; Welch, David O.; Tang, Ming; Zhu, Yimei (2018)
      The stress-free strain originated from local chemical composition and phase transformation can significantly alter the microstructures of materials; and then affect their properties. In this paper, we developed an analytical ...
    • Aqueous-Processed, High-Capacity Electrodes for Membrane Capacitive Deionization 

      Jain, Amit; Kim, Jun; Owoseni, Oluwaseye M.; Weathers, Cierra; Caña, Daniel; Zuo, Kuichang; Walker, W. Shane; Li, Qilin; Verduzco, Rafael (2018)
      Membrane capacitive deionization (MCDI) is a low-cost technology for desalination. Typically, MCDI electrodes are fabricated using a slurry of nanoparticles in an organic solvent along with polyvinylidene fluoride (PVDF) ...
    • Soft Ultrathin Electronics Innervated Adaptive Fully Soft Robots 

      Wang, Chengjun; Sim, Kyoseung; Chen, Jin; Kim, Hojin; Rao, Zhoulyu; Li, Yuhang; Chen, Weiqiu; Song, Jizhou; Verduzco, Rafael; Yu, Cunjiang (2018)
      Soft robots outperform the conventional hard robots on significantly enhanced safety, adaptability, and complex motions. The development of fully soft robots, especially fully from smart soft materials to mimic soft animals, ...
    • Scaling law for excitons in 2D perovskite quantum wells 

      Blancon, J.-C.; Stier, A.V.; Tsai, H.; Nie, W.; Stoumpos, C.C.; Traoré, B.; Pedesseau, L.; Kepenekian, M.; Katsutani, F.; Noe, G.T.; Kono, J.; Tretiak, S.; Crooker, S.A.; Katan, C.; Kanatzidis, M.G.; Crochet, J.J.; Even, J.; Mohite, A.D. (2018)
      Ruddlesden-Popper halide perovskites are 2D solution-processed quantum wells with a general formula A2A'n-1M n X3n+1, where optoelectronic properties can be tuned by varying the perovskite layer thickness (n-value), and ...