<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, X.</style></author><author><style face="normal" font="default" size="100%">Guard, L. M.</style></author><author><style face="normal" font="default" size="100%">Jiang, J.</style></author><author><style face="normal" font="default" size="100%">Sakimoto, K.</style></author><author><style face="normal" font="default" size="100%">Huang, J. S.</style></author><author><style face="normal" font="default" size="100%">Wu, J.</style></author><author><style face="normal" font="default" size="100%">Li, J.</style></author><author><style face="normal" font="default" size="100%">Yu, L.</style></author><author><style face="normal" font="default" size="100%">Pokhrel, R.</style></author><author><style face="normal" font="default" size="100%">Brudvig, G. W.</style></author><author><style face="normal" font="default" size="100%">Ismail-Beigi, S.</style></author><author><style face="normal" font="default" size="100%">Hazari, N.</style></author><author><style face="normal" font="default" size="100%">Taylor, A. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Controlled doping of carbon nanotubes with metallocenes for application in hybrid carbon nanotube/Si solar cells</style></title><secondary-title><style face="normal" font="default" size="100%">Nano LettNano Lett</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jun 11</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">3388-94</style></pages><isbn><style face="normal" font="default" size="100%">1530-6992 (Electronic)&lt;br/&gt;1530-6984 (Linking)</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;There is considerable interest in the controlled p-type and n-type doping of carbon nanotubes (CNT) for use in a range of important electronics applications, including the development of hybrid CNT/silicon (Si) photovoltaic devices. Here, we demonstrate that easy to handle metallocenes and related complexes can be used to both p-type and n-type dope single-walled carbon nanotube (SWNT) thin films, using a simple spin coating process. We report n-SWNT/p-Si photovoltaic devices that are &amp;gt;450 times more efficient than the best solar cells of this type currently reported and show that the performance of both our n-SWNT/p-Si and p-SWNT/n-Si devices is related to the doping level of the SWNT. Furthermore, we establish that the electronic structure of the metallocene or related molecule can be correlated to the doping level of the SWNT, which may provide the foundation for controlled doping of SWNT thin films in the future.&lt;/p&gt;
</style></abstract><accession-num><style face="normal" font="default" size="100%">24779408</style></accession-num><notes><style face="normal" font="default" size="100%">Li, Xiaokai&lt;br/&gt;Guard, Louise M&lt;br/&gt;Jiang, Jie&lt;br/&gt;Sakimoto, Kelsey&lt;br/&gt;Huang, Jing-Shun&lt;br/&gt;Wu, Jianguo&lt;br/&gt;Li, Jinyang&lt;br/&gt;Yu, Lianqing&lt;br/&gt;Pokhrel, Ravi&lt;br/&gt;Brudvig, Gary W&lt;br/&gt;Ismail-Beigi, Sohrab&lt;br/&gt;Hazari, Nilay&lt;br/&gt;Taylor, Andre D&lt;br/&gt;eng&lt;br/&gt;Research Support, Non-U.S. Gov't&lt;br/&gt;Research Support, U.S. Gov't, Non-P.H.S.&lt;br/&gt;2014/05/02 06:00&lt;br/&gt;Nano Lett. 2014 Jun 11;14(6):3388-94. doi: 10.1021/nl500894h. Epub 2014 May 13.</style></notes><auth-address><style face="normal" font="default" size="100%">Department of Chemical and Environmental Engineering and double daggerDepartment of Chemistry, Yale University , New Haven, Connecticut 06511, United States.</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, X.</style></author><author><style face="normal" font="default" size="100%">Huang, J. S.</style></author><author><style face="normal" font="default" size="100%">Nejati, S.</style></author><author><style face="normal" font="default" size="100%">McMillon, L.</style></author><author><style face="normal" font="default" size="100%">Huang, S.</style></author><author><style face="normal" font="default" size="100%">Osuji, C. O.</style></author><author><style face="normal" font="default" size="100%">Hazari, N.</style></author><author><style face="normal" font="default" size="100%">Taylor, A. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Role of HF in oxygen removal from carbon nanotubes: implications for high performance carbon electronics</style></title><secondary-title><style face="normal" font="default" size="100%">Nano LettNano Lett</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">carbon electronics</style></keyword><keyword><style  face="normal" font="default" size="100%">carbon nanotubes</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrofluoric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">photovoltaic devices</style></keyword><keyword><style  face="normal" font="default" size="100%">silver nanowires</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov 12</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">11</style></number><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">6179-84</style></pages><isbn><style face="normal" font="default" size="100%">1530-6992 (Electronic)&lt;br/&gt;1530-6984 (Linking)</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Oxygen removal from SWNTs is crucial for many carbon electronic devices. This work shows that HF treatment followed by current stimulation is a very effective method for oxygen removal. Using a procedure involving HF treatment, current stimulation and spin-casting AgNWs onto a SWNT thin film, record high efficiency SWNT/p-Si solar cells have been developed.&lt;/p&gt;
</style></abstract><accession-num><style face="normal" font="default" size="100%">25286024</style></accession-num><notes><style face="normal" font="default" size="100%">Li, Xiaokai&lt;br/&gt;Huang, Jing-Shun&lt;br/&gt;Nejati, Siamak&lt;br/&gt;McMillon, Lyndsey&lt;br/&gt;Huang, Su&lt;br/&gt;Osuji, Chinedum O&lt;br/&gt;Hazari, Nilay&lt;br/&gt;Taylor, Andre D&lt;br/&gt;eng&lt;br/&gt;Research Support, Non-U.S. Gov't&lt;br/&gt;Research Support, U.S. Gov't, Non-P.H.S.&lt;br/&gt;2014/10/07 06:00&lt;br/&gt;Nano Lett. 2014 Nov 12;14(11):6179-84. doi: 10.1021/nl502401c. Epub 2014 Oct 29.</style></notes><auth-address><style face="normal" font="default" size="100%">Department of Chemical and Environmental Engineering, Yale University , New Haven, Connecticut 06511, United States.</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jung, Y.</style></author><author><style face="normal" font="default" size="100%">Li, X.</style></author><author><style face="normal" font="default" size="100%">Rajan, N. K.</style></author><author><style face="normal" font="default" size="100%">Taylor, A. D.</style></author><author><style face="normal" font="default" size="100%">Reed, M. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Record high efficiency single-walled carbon nanotube/silicon p-n junction solar cells</style></title><secondary-title><style face="normal" font="default" size="100%">Nano LettNano Lett</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jan 9</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">95-9</style></pages><isbn><style face="normal" font="default" size="100%">1530-6992 (Electronic)&lt;br/&gt;1530-6984 (Linking)</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Carrier transport characteristics in high-efficiency single-walled carbon nanotubes (SWNTs)/silicon (Si) hybrid solar cells are presented. The solar cells were fabricated by depositing intrinsic p-type SWNT thin-films on n-type Si wafers without involving any high-temperature process for p-n junction formation. The optimized cells showed a device ideality factor close to unity and a record-high power-conversion-efficiency of &amp;gt;11%. By investigating the dark forward current density characteristics with varying temperature, we have identified that the temperature-dependent current rectification originates from the thermally activated band-to-band transition of carriers in Si, and the role of the SWNT thin films is to establish a built-in potential for carrier separation/collection. We have also established that the dominant carrier transport mechanism is diffusion, with minimal interface recombination. This is further supported by the observation of a long minority carrier lifetime of ~34 mus, determined by the transient recovery method. This study suggests that these hybrid solar cells operate in the same manner as single crystalline p-n homojunction Si solar cells.&lt;/p&gt;
</style></abstract><accession-num><style face="normal" font="default" size="100%">23237412</style></accession-num><notes><style face="normal" font="default" size="100%">Jung, Yeonwoong&lt;br/&gt;Li, Xiaokai&lt;br/&gt;Rajan, Nitin K&lt;br/&gt;Taylor, Andre D&lt;br/&gt;Reed, Mark A&lt;br/&gt;eng&lt;br/&gt;2012/12/15 06:00&lt;br/&gt;Nano Lett. 2013 Jan 9;13(1):95-9. doi: 10.1021/nl3035652. Epub 2012 Dec 17.</style></notes><auth-address><style face="normal" font="default" size="100%">Department of Electrical Engineering, Yale University, New Haven, Connecticut 06520, USA. yeonwoong.jung@yale.edu</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gittleson, F. S.</style></author><author><style face="normal" font="default" size="100%">Kohn, D. J.</style></author><author><style face="normal" font="default" size="100%">Li, X.</style></author><author><style face="normal" font="default" size="100%">Taylor, A. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Improving the assembly speed, quality, and tunability of thin conductive multilayers</style></title><secondary-title><style face="normal" font="default" size="100%">ACS NanoACS Nano</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May 22</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">3703-11</style></pages><isbn><style face="normal" font="default" size="100%">1936-086X (Electronic)&lt;br/&gt;1936-0851 (Linking)</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">While inhomogeneous thin conductive films have been sought after for their flexibility, transparency, and strength, poor control in the processing of these materials has restricted their application. The versatile layer-by-layer assembly technique allows greater control over film deposition, but even this has been hampered by the traditional dip-coating method. Here, we employ a fully automated spin-spray layer-by-layer system (SSLbL) to rapidly produce high-quality, tunable multilayer films. With bilayer deposition cycle times as low as 13 s (~50% of previously reported) and thorough characterization of film conductance in the near percolation region, we show that SSLbL permits nanolevel control over film growth and efficient formation of a conducting network not available with other methods of multilayer deposition. The multitude of variables from spray time, to spin rate, to active drying available with SSLbL makes films generated by this technique inherently more tunable and expands the opportunity for optimization and application of composite multilayers. A comparison of several polymer-CNT systems deposited by both spin-spray and dip-coating exemplifies the potential of SSLbL assembly to allow for rapid screening of multilayer films. Ultrathin polymer-CNT multilayers assembled by SSLbL were also evaluated as lithium-ion battery electrodes, emphasizing the practical application of this technique.</style></abstract><accession-num><style face="normal" font="default" size="100%">22515634</style></accession-num><notes><style face="normal" font="default" size="100%">Gittleson, Forrest S&lt;br/&gt;Kohn, David J&lt;br/&gt;Li, Xiaokai&lt;br/&gt;Taylor, Andre D&lt;br/&gt;eng&lt;br/&gt;2012/04/21 06:00&lt;br/&gt;ACS Nano. 2012 May 22;6(5):3703-11. doi: 10.1021/nn204384f. Epub 2012 May 7.</style></notes><auth-address><style face="normal" font="default" size="100%">Department of Chemical Engineering, Yale University, P.O. Box 208286, New Haven, Connecticut 06520-8286, USA.</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Li, X.</style></author><author><style face="normal" font="default" size="100%">Gittleson, F.</style></author><author><style face="normal" font="default" size="100%">Carmo, M.</style></author><author><style face="normal" font="default" size="100%">Sekol, R. C.</style></author><author><style face="normal" font="default" size="100%">Taylor, A. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Scalable fabrication of multifunctional freestanding carbon nanotube/polymer composite thin films for energy conversion</style></title><secondary-title><style face="normal" font="default" size="100%">ACS NanoACS Nano</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Feb 28</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">1347-56</style></pages><isbn><style face="normal" font="default" size="100%">1936-086X (Electronic)&lt;br/&gt;1936-0851 (Linking)</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Translating the unique properties of individual single-walled carbon nanotubes (SWNTs) to the macroscale while simultaneously incorporating additional functionalities into composites has been stymied by inadequate assembly methods. Here we describe a technique for developing multifunctional SWNT/polymer composite thin films that provides a fundamental engineering basis to bridge the gap between their nano- and macroscale properties. Selected polymers are infiltrated into a Mayer rod coated conductive SWNT network to fabricate solar cell transparent conductive electrodes (TCEs), fuel cell membrane electrode assemblies (MEAs), and lithium ion battery electrodes. Our TCEs have an outstanding optoelectronic figure of merit sigma(dc)/sigma(ac) of 19.4 and roughness of 3.8 nm yet are also mechanically robust enough to withstand delamination, a step toward scratch resistance necessary for flexible electronics. Our MEAs show platinum utilization as high as 1550 mW/mg(Pt), demonstrating our technique's ability to integrate ionic conductivity of the polymer with electrical conductivity of the SWNTs at the Pt surface. Our battery anodes, which show reversible capacity of approximately 850 mAh/g after 15 cycles, demonstrate the integration of electrode and separator to simplify device architecture and decrease overall weight. Each of these applications demonstrates our technique's ability to maintain the conductivity of SWNT networks and their dispersion within a polymer matrix while concurrently optimizing key complementary properties of the composite. Here, we lay the foundation for the assembly of nanotubes and nanostructured components (rods, wires, particles, etc.) into macroscopic multifunctional materials using a low-cost and scalable solution-based processing technique.</style></abstract><accession-num><style face="normal" font="default" size="100%">22236330</style></accession-num><notes><style face="normal" font="default" size="100%">Li, Xiaokai&lt;br/&gt;Gittleson, Forrest&lt;br/&gt;Carmo, Marcelo&lt;br/&gt;Sekol, Ryan C&lt;br/&gt;Taylor, Andre D&lt;br/&gt;eng&lt;br/&gt;Research Support, Non-U.S. Gov't&lt;br/&gt;Research Support, U.S. Gov't, Non-P.H.S.&lt;br/&gt;2012/01/13 06:00&lt;br/&gt;ACS Nano. 2012 Feb 28;6(2):1347-56. doi: 10.1021/nn2041544. Epub 2012 Jan 24.</style></notes><auth-address><style face="normal" font="default" size="100%">Chemical &amp; Environmental Engineering Department, Yale University, New Haven, Connecticut 06511, United States.</style></auth-address></record></records></xml>