Browsing by Author "Bowers, Carleen"

Now showing items 1-13 of 13

    • Characterizing the Metal–SAM Interface in Tunneling Junctions 

      Bowers, Carleen Morris; Liao, Kung-ching; Zaba, Tomasz; Rappoport, Dmitrij; Baghbanzadeh, Mostafa; Breiten, Benjamin; Krzykawska, Anna; Cyganik, Piotr; Whitesides, George McClelland (American Chemical Society (ACS), 2015)
      his paper investigates the influence of the interface between a gold or silver metal electrode and an n-alkyl SAM (supported on that electrode) on the rate of charge transport across junctions with structure Met(Au or ...

    • Charge Tunneling along Short Oligoglycine Chains 

      Baghbanzadeh, Mostafa; Bowers, Carleen Morris; Rappoport, Dmitrij; Zaba, Tomasz; Gonidec, Mathieu; Al-Sayah, Mohammad; Cyganik, Piotr; Aspuru-Guzik, Alan; Whitesides, George McClelland (Wiley-Blackwell, 2015)
      This work examines charge transport (CT) through self-assembled monolayers (SAMs) of oligoglycines having an N-terminal cysteine group that anchors the molecule to a gold substrate, and demonstrate that CT is rapid (relative ...

    • Fluorination, and Tunneling across Molecular Junctions 

      Liao, Kung-ching; Bowers, Carleen Morris; Yoon, Hyo; Whitesides, George McClelland (American Chemical Society (ACS), 2015)
      This paper describes the influence of the substitution of fluorine for hydrogen on the rate of charge transport by hole tunneling through junctions of the form AgTSO2C(CH2)n(CF2)mT//Ga2O3/EGaIn, where T is methyl (CH3) or ...

    • Formation of Highly Ordered Self-Assembled Monolayers of Alkynes on Au(111) Substrate 

      Zaba, Tomasz; Noworolska, Agnieszka; Bowers, Carleen Morris; Breiten, Benjamin; Whitesides, George McClelland; Cyganik, Piotr (American Chemical Society (ACS), 2014)
      Self-assembled monolayers (SAMs), prepared by reaction of terminal n-alkynes (HC≡C(CH2)nCH3, n = 5, 7, 9, and 11) with Au(111) at 60 °C were characterized using scanning tunneling microscopy (STM), infrared reflection ...

    • Influence of Environment on the Measurement of Rates of Charge Transport across Ag TS /SAM//Ga 2 O 3 /EGaIn Junctions 

      Barber, Jabulani; Yoon, Hyo; Bowers, Carleen Morris; Thuo, Martin M.; Breiten, Benjamin; Gooding, Diana M.; Whitesides, George McClelland (American Chemical Society (ACS), 2014)
      This paper investigates the influence of the atmosphere used in the fabrication of top electrodes from the liquid eutectic of gallium and indium (EGaIn) (the so-called “EGaIn” electrodes), and in measurements of current ...

    • Introducing Ionic and/or Hydrogen Bonds into the SAM//Ga 2 O 3 Top-Interface of Ag TS /S(CH 2 ) n T//Ga 2 O 3 /EGaIn Junctions 

      Bowers, Carleen Morris; Liao, Kung-ching; Yoon, Hyo Jae; Rappoport, Dmitrij; Baghbanzadeh, Mostafa; Simeone, Felice C.; Whitesides, George McClelland (American Chemical Society (ACS), 2014)
      Junctions with the structure AgTS/S(CH2)nT//Ga2O3/EGaIn (where S(CH2)nT is a self-assembled monolayer, SAM, of n-alkanethiolate bearing a terminal functional group T) make it possible to examine the response of rates of ...

    • Molecular Series-Tunneling Junctions 

      Liao, Kung-ching; Hsu, Liang-Yan; Bowers, Carleen Morris; Rabitz, Herschel; Whitesides, George McClelland (American Chemical Society (ACS), 2015)
      Charge transport through junctions consisting of insulating molecular units is a quantum phenomenon that cannot be described adequately by classical circuit laws. This paper explores tunneling current densities in ...

    • Odd–Even Effects in Charge Transport across n -Alkanethiolate-Based SAMs 

      Baghbanzadeh, Mostafa; Simeone, Felice C.; Bowers, Carleen Morris; Liao, Kung-ching; Thuo, Martin; Baghbanzadeh, Mahdi; Miller, Michael S.; Carmichael, Tricia Breen; Whitesides, George McClelland (American Chemical Society (ACS), 2014)
      This paper compares rates of charge transport across self-assembled monolayers (SAMs) of n-alkanethiolates having odd and even numbers of carbon atoms (nodd and neven) using junctions with the structure MTS/SAM//Ga2O3/EGaIn ...

    • The Rate of Charge Tunneling Is Insensitive to Polar Terminal Groups in Self-Assembled Monolayers in Ag TS S(CH 2 ) n M(CH 2 ) m T//Ga 2 O 3 /EGaIn Junctions 

      Yoon, Hyo; Bowers, Carleen Morris; Baghbanzadeh, Mostafa; Whitesides, George McClelland (American Chemical Society (ACS), 2014)
      This paper describes a physical‐organic studyof the effect of uncharged, polar, functional groups on the rate of charge transport by tunneling across self‐assembled monolayer (SAM)‐based large‐area junctions of the form ...

    • Replacing \(Ag ^{TS} SCH_2-R\) with \(Ag^{TS}O_2C-R\) in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport 

      Liao, Kung-ching; Yoon, Hyo; Bowers, Carleen Morris; Simeone, Felice; Whitesides, George McClelland (Wiley-Blackwell, 2014)
      This paper compares rates of charge transport by tunneling across junctions with the structures \(Ag^{TS}X(CH_2)_{2n}CH_3 //Ga_2O_3 /EGaIn \space\) (n=1–8 and \(X= -SCH_2-\) and \(O_2C-\)); here \(Ag^{TS}\) is template-stripped ...

    • Replacing Ag TS SCH 2 -R with Ag TS O 2 C-R in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport 

      Liao, Kung-ching; Yoon, Hyo Jae; Bowers, Carleen Morris; Simeone, Felice C.; Whitesides, George McClelland (Wiley-Blackwell, 2014)
      This paper compares rates of charge transport by tunneling across junctions with the structures AgTSX(CH2)2nCH3 //Ga2O3 /EGaIn (n=1–8 and X= [BOND]SCH2[BOND] and [BOND]O2C[BOND]); here AgTS is template-stripped silver, and ...

    • Tunneling across SAMs Containing Oligophenyl Groups 

      Bowers, Carleen; Rappoport, Dmitrij; Baghbanzadeh, Mostafa; Simeone, Felice; Liao, Kung-ching; Semenov, Sergey N.; Zaba, Tomasz; Cyganik, Piotr; Aspuru-Guzik, Alan; Whitesides, George McClelland (American Chemical Society (ACS), 2016)
      This paper describes rates of charge tunneling across self-assembled monolayers (SAMs) of compounds containing oligophenyl groups, supported on gold and silver, using Ga2O3/EGaIn as the top electrode. It compares the ...

    • Water Networks Contribute to Enthalpy/Entropy Compensation in Protein–Ligand Binding 

      Breiten, Benjamin; Lockett, Matthew R.; Sherman, Woody; Fujita, Shuji; Al-Sayah, Mohammad Hussein; Lange, Heiko; Bowers, Carleen Morris; Heroux, Annie; Krilov, Goran; Whitesides, George McClelland (American Chemical Society, 2013)
      The mechanism (or mechanisms) of enthalpy–entropy (H/S) compensation in protein–ligand binding remains controversial, and there are still no predictive models (theoretical or experimental) in which hypotheses of ligand ...