Výsledky vyhledávání - "P. Alex Veneman"

Electrical Property Heterogeneity at Transparent Conductive Oxide/Organic Semiconductor Interfaces: Mapping Contact Ohmicity Using Conducting-Tip Atomic Force Microscopy

Autor: P. Alex Veneman, Diogenes Placencia, Gordon A. MacDonald, Neal R. Armstrong

Publikováno v: ACS Nano. 6:9623-9636

We demonstrate mapping of electrical properties of heterojunctions of a molecular semiconductor (copper phthalocyanine, CuPc) and a transparent conducting oxide (indium-tin oxide, ITO), on 20-500 nm length scales, using a conductive-probe atomic forc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c733663ecb06cfd8192c67704c52737
https://doi.org/10.1021/nn303043y

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Self-Organized Thin Films of Hydrogen-Bonded Phthalocyanines: Characterization of Structure and Electrical Properties on Nanometer Length Scales

Autor: David F. O'Brien, Jeanne E. Pemberton, Niranjani Kumaran, Neal R. Armstrong, P. Alex Veneman, Britt A. Minch, Anoma Mudalige

Publikováno v: Chemistry of Materials. 22:2491-2501

We present the structural and electrical property characterization of solution-deposited thin films of a self-organizing phthalocyanine 2,3,9,10,16,17,23,24-octa(2-(4-octylbenzamide ethyl-sulfanyl)...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9003dc493fce5c9385d1897fc4d5a65d
https://doi.org/10.1021/cm903127w

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Surface Composition and Electrical and Electrochemical Properties of Freshly Deposited and Acid-Etched Indium Tin Oxide Electrodes

Autor: Paul A. Lee, F. Saneeha Marrikar, Wei Xia, P. Alex Veneman, Adam G. Simmonds, Michael T. Brumbach, Neal R. Armstrong, Thomas Schulmeyer

Publikováno v: Langmuir. 23:11089-11099

We compare the near-surface composition and electroactivity of commercial indium tin oxide (ITO) thin films, activated by plasma cleaning or etching with strong haloacids, with ITO films that have been freshly deposited in high vacuum, before and aft

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::561f99798a889b5b2002864d34a3d876
https://doi.org/10.1021/la701754u

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Room-temperature epitaxial electrodeposition of single-crystalline germanium nanowires at the wafer scale from an aqueous solution

Autor: Rachel Goldman, S. Jeon, P. Alex Veneman, Junsi Gu, Eli Fahrenkrug, Stephen Maldonado

Publikováno v: Nano letters. 14(2)

Direct epitaxial growth of single-crystalline germanium (Ge) nanowires at room temperature has been performed through an electrodeposition process on conductive wafers immersed in an aqueous bath. The crystal growth is based on an electrochemical liq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e97391380c5550ec8a2b6f3d73fde51
https://pubmed.ncbi.nlm.nih.gov/24417670

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A planar, chip-based, dual-beam refractometer using an integrated organic light-emitting diode (OLED) light source and organic photovoltaic (OPV) detectors

Autor: Brian Zacher, Erin L. Ratcliff, Daniel Huebner, S. Scott Saavedra, Neal R. Armstrong, Adam G. Simmonds, P. Alex Veneman

Publikováno v: Analytical chemistry. 82(7)

We present a simple chip-based refractometer with a central organic light-emitting diode (OLED) light source and two opposed organic photovoltaic (OPV) detectors on an internal reflection element (IRE) substrate, creating a true dual-beam sensor plat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::564df5cd0e4e94671708c0bc05cd94b4
https://pubmed.ncbi.nlm.nih.gov/20218580

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Oxide contacts in organic photovoltaics: characterization and control of near-surface composition in indium-tin oxide (ITO) electrodes

Autor: Neal R. Armstrong, Michael T. Brumbach, Erin L. Ratcliff, Diogenes Placencia, P. Alex Veneman

Publikováno v: Accounts of chemical research. 42(11)

The recent improvements in the power conversion efficiencies of organic photovoltaic devices (OPVs) promise to make these technologies increasingly attractive alternatives to more established photovoltaic technologies. OPVs typically consist of photo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::878dd3a41ee2e72613279f3320191135
https://pubmed.ncbi.nlm.nih.gov/19728725

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Critical interfaces in new solar cell materials: organic heterojunctions and heterojunctions involving semiconductor nanoparticles

Autor: Dana M. Alloway, R. Clayton Shallcross, Neal R. Armstrong, Amy L. Graham, P. Alex Veneman, Weining Wang, Diogenes Placencia, Michael T. Brumbach

Publikováno v: SPIE Proceedings.

The heterojunctions formed between different organic dyes (O/O' heterojunctions), organic dyes with contacting oxide or metal electrodes (O/I heterojunctions), and semiconductor nanoparticles with organic host polymers and ligands (SC-NP/ O heterojun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04b62456bc8dc521e960f6b9ab59c10d
https://doi.org/10.1117/12.795451

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Akademický článek

Oxide Contacts in Organic Photovoltaics: Characterization and Control of Near-Surface Composition in Indium−Tin Oxide (ITO) Electrodes.

Autor: Neal R. Armstrong¹, P. Alex Veneman¹, Erin Ratcliff¹, Diogenes Placencia¹, Michael Brumbach¹

Publikováno v: Accounts of Chemical Research. Nov2009, Vol. 42 Issue 11, p1748-1757. 10p.

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Akademický článek

Surface Composition and Electrical and Electrochemical Properties of Freshly Deposited and Acid-Etched Indium Tin Oxide Electrodes.

Autor: Michael Brumbach, P. Alex Veneman, F. Saneeha Marrikar, Thomas Schulmeyer, Adam Simmonds, Wei Xia, Paul Lee, Neal R. Armstrong

Publikováno v: Langmuir; Oct2007, Vol. 23 Issue 22, p11089-11099, 11p

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