Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Greg Pawin"'
Autor:
and Anwei Liu, Ludwig Bartels, Greg Pawin, Kin L. Wong, Bommisetty V. Rao, Xing Lin, Sergey Stolbov, Ki-Young Kwon, Talat S. Rahman
Publikováno v:
Langmuir. 20:10928-10934
Para-halosubstituted thiophenols (X-TPs, where X is Br, Cl, or F) form ordered islands and monolayers on Cu(111) at temperatures as low as 81 K. At incomplete coverages, all X-TPs adsorb with the dehydrogenated thiol group attached to the substrate a
Autor:
Miguel Isarraraz, Koichi Yamaguchi, Edwin Preciado, Duy Le, Quan Ma, Emily Li, Gretel von Son Palacio, Greg Pawin, Dezheng Sun, Ariana E. Nguyen, Talat S. Rahman, Tony F. Heinz, Andrew Nguyen, Velveth Klee, Ludwig Bartels, Sarah Bobek, David Barroso, Chen Wang, John Mann, Patrick Odenthal, Michael J. Gomez
Publikováno v:
ACS nano. 8(5)
We demonstrate bandgap tuning of a single-layer MoS2 film on SiO2/Si via substitution of its sulfur atoms by selenium through a process of gentle sputtering, exposure to a selenium precursor, and annealing. We characterize the substitution process bo
Autor:
Talat S. Rahman, Greg Pawin, Ki-Young Kwon, Kin L. Wong, U. Solanki, R. H. J. Fawcett, Ludwig Bartels, Sergey Stolbov, Xing Lin, T. Jiao
Publikováno v:
Science. 315:1391-1393
We found that anthraquinone diffuses along a straight line across a flat, highly symmetric Cu(111) surface. It can also reversibly attach one or two CO 2 molecules as “cargo” and act as a “molecule carrier,” thereby transforming the diffusive
Autor:
James K. Gimzewski, Catherine Skibo, Véronique Langlais, Adam Z. Stieg, Maricarmen Grisolia, Yoshitaka Tateyama, Reto R Schilittler, Greg Pawin, Christian Joachim
Publikováno v:
Langmuir
Langmuir, American Chemical Society, 2013, 29 (24), pp.7309-7317. ⟨10.1021/la304634n⟩
Langmuir, 2013, 29 (24), pp.7309-7317. ⟨10.1021/la304634n⟩
Langmuir, American Chemical Society, 2013, 29 (24), pp.7309-7317. ⟨10.1021/la304634n⟩
Langmuir, 2013, 29 (24), pp.7309-7317. ⟨10.1021/la304634n⟩
The design of molecular systems as functional elements for use in next-generation electronic sensors and devices often relies on the addition of functional groups acting as spacers to modify adsorbate-substrate interactions. Although advantageous in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ec17d321e5f52de7ccfdd7f9a938141
https://hal.archives-ouvertes.fr/hal-01799183
https://hal.archives-ouvertes.fr/hal-01799183
Autor:
Greg Pawin, Robert Carp, Dezheng Sun, Daeho Kim, Ludwig Bartels, Kin L. Wong, Zhihai Cheng, Ki-Young Kwon, Michael J. Marsella
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 27(14)
The application of steric blocking in surface science is exemplified by the control of surface patterns through the selective methylation of pentacenetetrone. Pentacenetetrones interact (with one another) on Cu(111) via intermolecular hydrogen bondin
Autor:
Kin L. Wong, Ki-Young Kwon, Daeho Kim, Greg Pawin, Michael J. Marsella, Robert Carp, Ludwig Bartels, Miaomiao Luo, Dezheng Sun, Eric Chu, Yeming Zhu, Zhihai Cheng
Publikováno v:
Journal of the American Chemical Society. 132(39)
The diffusion temperature of molecular 'walkers', molecules that are capable of moving unidirectionally across a substrate violating its symmetry, can be tuned over a wide range utilizing extension of their aromatic backbone, insertion of a second se
Publikováno v:
Journal of the American Chemical Society. 130(46)
9,10-Dithioanthracene adsorbed on Cu(111) diffuses exclusively along the high-symmetry axis of the molecule−substrate system. Further reduction of the symmetry of the system by asymmetric methylation does not reduce the symmetry of the motion altho
Autor:
Michael J. Marsella, Talat S. Rahman, Sampyo Hong, Kin L. Wong, Robert Carp, Dezheng Sun, Ludwig Bartels, Daeho Kim, Greg Pawin
Publikováno v:
Angewandte Chemie (International ed. in English). 47(44)
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 22(3)
Derivatives of 2,5-diaryl-1,3,4-oxadiazole are used widely for electron transport in organic light emitting diodes (OLED). This study addresses the structure of 2,5-diphenyl-1,3,4-oxadiazole (PPD) molecules on Cu(111) using scanning tunneling microsc
Publikováno v:
The Journal of chemical physics. 123(20)
We present data on the coverage and nearest-neighbor dependences of the diffusion of CO on Cu(111) by time-lapsed scanning tunneling microscope (STM) imaging. Most notable is a maximum in diffusivity of CO at a local coverage of one molecule per 20 s