Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Timothy J. Coutts"'
Autor:
Timothy J. Coutts, Timothy A. Gessert, Mark van Schilfgaarde, Lei Zhang, Rakesh Singh, Timothy J. Peshek, Bobby To, Nathan Newman, Z. Z. Tang, M. Vahidi
Publikováno v:
Progress in Photovoltaics: Research and Applications. 21:906-917
We explore the potential utility of the II-IV-V semiconductor ZnGeAs2 as the absorber material in solar cells. As-deposited ZnGeAs2 films prepared by pulsed laser deposition are amorphous because of the limited substrate temperature that can be used
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 26:692-696
Undoped ZnO and ZnO:Al (0.1, 0.2, 0.5, 1.0, and 2.0wt.% Al2O3) films were deposited by rf magnetron sputtering. Controlled incorporation of H2 in the Ar sputtering ambient for films grown at substrate temperatures up to 200°C results in mobilities e
Autor:
Robert C. Tenent, Yong-Hyun Kim, Michael J. Heben, Matthew C. Beard, Bobby To, Jeffrey L. Blackburn, Teresa M. Barnes, Timothy J. Coutts, Timothy J. McDonald
Publikováno v:
ACS Nano. 2:1266-1274
We present a comprehensive study of the optical and electrical properties of transparent conductive films made from precisely tuned ratios of metallic and semiconducting single-wall carbon nanotubes. The conductivity and transparency of the SWNT film
Publikováno v:
Journal of Non-Crystalline Solids. 354:2787-2790
ZnO-based transparent conducting oxide (TCO) thin films have received increased attention recently because of their potential to reduce production costs compared to those of the prevalent TCO indium tin oxide (ITO). Undoped ZnO and ZnO:Al (0.1, 0.2,
Autor:
Jorma Peltola, Jao van de Lagemaat, Paul J. Glatkowski, Garry Rumbles, Chris Weeks, Miguel A. Contreras, David A. Britz, Timothy J. Coutts, Igor A. Levitsky, Teresa M. Barnes
Publikováno v:
The Journal of Physical Chemistry C. 111:14045-14048
Thin films of single-wall carbon nanotubes were used as the transparent top electrical contact in Cu(In,Ga)Se2- based solar cells. Specifically, we demonstrate that thin layers of carbon nanotubes in combination with insulating polymer layers can eff
Autor:
David M. Wood, Timothy J. Coutts, Teresa M. Barnes, Joel N. Duenow, Timothy A. Gessert, Bobby To, Matthew Young
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 25:955-960
Undoped ZnO, ZnO:Al (0.5, 1, and 2wt% Al2O3), and ZnO:Mo (2wt% Mo) films were deposited by radio-frequency magnetron sputtering. Optimal deposition temperature was found to be ∼200°C for all films. Electron mobilities of 48cm2V−1s−1 were achie
Autor:
Shengbai Zhang, Su-Huai Wei, Rommel Noufi, Sukit Limpijumnong, Xiaonan Li, Teresa M. Barnes, Timothy J. Coutts, Sally Asher
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 24:1213-1217
Carbon is a typical impurity in thin films fabricated by metal-organic chemical-vapor deposition (MOCVD). The role of carbon in undoped and nitrogen-doped ZnO thin films was studied experimentally and theoretically to understand the possible compensa
Autor:
Timothy J. Coutts, Sukit Limpijumnong, Craig L. Perkins, Joseph M. Luther, Su-Huai Wei, Sally Asher, Teresa M. Barnes, Helio R. Moutinho, Brian Keyes, Xiaonan Li, Shengbai Zhang
Publikováno v:
Journal of Crystal Growth. 287:94-100
We studied the role of impurities in nitrogen-doped ZnO thin film to understand the difficulty of producing p-type ZnO via nitrogen doping. The ZnO:N films were fabricated by low-pressure metal-organic chemical vapor deposition (MOCVD) using diethylz
Publikováno v:
Applied Surface Science. 223:138-143
SnO 2 and CdO films with high electrical and optical quality have been produced by using low-pressure metal-organic chemical vapor deposition. Based on the knowledge gained from binary oxide formation, linear combinatorial synthesis is used to study
Autor:
Y. Yan, Craig L. Perkins, Clay DeHart, Matthew Young, Timothy A. Gessert, Xiaonan Li, Timothy J. Coutts, David L. Young
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 21:1342-1346
We have fabricated nitrogen-doped zinc oxide (ZnO) films that demonstrate p-type behavior by using metalorganic chemical vapor deposition. In our experiment, diethylzinc is used as a Zn precursor, and NO gas is used to supply both O and N to form a N