scholarly journals Photoelectron Spectroscopy of Molecular Anion of Alq3: An Estimation of Reorganization Energy for Electron Transport in the Bulk

ACS Omega ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 15200-15204 ◽  
Author(s):  
Toshiaki Yanase ◽  
Ryuzo Nakanishi ◽  
Satoru Muramatsu ◽  
Kiichirou Koyasu ◽  
Hiroyuki Yoshida ◽  
...  
Keyword(s):  
Electron Transport ◽  
Photoelectron Spectroscopy ◽  
Reorganization Energy ◽  
Molecular Anion

Structures of C2S4- molecular anion: Photoelectron spectroscopy and theoretical calculations

2008 ◽  
Vol 457 (1-3) ◽  
pp. 31-35 ◽  
Author(s):  
Yasushi Matsuyama ◽  
Takashi Nagata
Keyword(s):  
Photoelectron Spectroscopy ◽  
Theoretical Calculations ◽  
Molecular Anion ◽  
Anion Photoelectron Spectroscopy

An X-Ray Photoelectron Study of Doped and Supported Nickel Oxide

1985 ◽  
Vol 38 (9) ◽  
pp. 1293 ◽  
Author(s):  
SJ Cochran ◽  
FP Larkins
Keyword(s):  
Activation Energy ◽  
Electron Transport ◽  
Nickel Oxide ◽  
Photoelectron Spectroscopy ◽  
Oxide Surface ◽  
X Ray ◽  
Peak Intensity ◽  
Photoelectron Study ◽  
Supported Oxides ◽  
Doped Oxide

The surfaces of lithium-and chromium-doped nickel oxide and of nickel oxide supported on alumina have been examined by X-ray photoelectron spectroscopy. The concentration of the nickel(III) species increased for the lithium-doped oxide and decreased for the chromium-doped oxide relative to the undoped oxide. The effects of doping were manifested most clearly however by the amount of oxygen-containing species adsorbed on the oxide surface rather than by variations in the nickel(III) peak intensity. Lithium-doped oxides were also shown to reduce more readily than undoped or chromium-doped oxides in the presence of carbon-containing impurities. The rate of reduction is influenced by the activation energy for electron transport which is related to the availability of the nickel(III) species. Supported oxides showed significant surface enhancement of nickel(II) as well as an absence of the nickel(III) species. The nickel(II) species in the supported oxide was not easily reduced to nickel(0).

Negative ion photoelectron spectroscopy of acridine molecular anion and its monohydrate

2004 ◽  
Vol 121 (22) ◽  
pp. 11112 ◽  
Author(s):  
Shinsuke Kokubo ◽  
Naoto Ando ◽  
Kiichirou Koyasu ◽  
Masaaki Mitsui ◽  
Atsushi Nakajima
Keyword(s):  
Photoelectron Spectroscopy ◽  
Negative Ion ◽  
Molecular Anion

Atomic Layer Deposited Electron Transport Layers in Efficient Organometallic Halide Perovskite Devices

MRS Advances ◽  
2018 ◽  
Vol 3 (51) ◽  
pp. 3075-3084 ◽  
Author(s):  
Melissa M. McCarthy ◽  
Arnaud Walter ◽  
Soo-Jin Moon ◽  
Nakita K. Noel ◽  
Shane O’Brien ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Transport ◽  
Photoelectron Spectroscopy ◽  
Growth Parameters ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Atomic Layer ◽  
X Ray ◽  
Layer Deposition ◽  
Halide Perovskite

ABSTRACTAmorphous TiO2 and SnO2 electron transport layers (ETLs) were deposited by low-temperature atomic layer deposition (ALD). Surface morphology and x-ray photoelectron spectroscopy (XPS) indicate uniform and pinhole free coverage of these ALD hole blocking layers. Both mesoporous and planar perovskite solar cells were fabricated based on these thin films with aperture areas of 1.04 cm2 for TiO2 and 0.09 cm2 and 0.70 cm2 for SnO2. The resulting cell performance of 18.3 % power conversion efficiency (PCE) using planar SnO2 on 0.09 cm2 and 15.3 % PCE using mesoporous TiO2 on 1.04 cm2 active areas are discussed in conjunction with the significance of growth parameters and ETL composition.

Charge Reorganization Energy and Small Polaron Binding Energy of Rubrene Thin Films by Ultraviolet Photoelectron Spectroscopy

2012 ◽  
Vol 24 (7) ◽  
pp. 901-905 ◽  
Author(s):  
Steffen Duhm ◽  
Qian Xin ◽  
Shunsuke Hosoumi ◽  
Hirohiko Fukagawa ◽  
Kazushi Sato ◽  
...  
Keyword(s):  
Thin Films ◽  
Binding Energy ◽  
Photoelectron Spectroscopy ◽  
Small Polaron ◽  
Reorganization Energy ◽  
Ultraviolet Photoelectron Spectroscopy

Electron transport properties in fluorinated copper–phthalocyanine films: importance of vibrational reorganization energy and molecular microstructure

2010 ◽  
Vol 12 (9) ◽  
pp. 2098 ◽  
Author(s):  
Fu-Chiao Wu ◽  
Horng-Long Cheng ◽  
Chen-Hsiang Yen ◽  
Jyu-Wun Lin ◽  
Shyh-Jiun Liu ◽  
...  
Keyword(s):  
Electron Transport ◽  
Transport Properties ◽  
Copper Phthalocyanine ◽  
Reorganization Energy ◽  
Electron Transport Properties

Inelastic Mean Free Path Data for Si Corrected for Surface Excitation

2005 ◽  
Vol 11 (6) ◽  
pp. 581-585
Author(s):  
Gábor Tamás Orosz ◽  
György Gergely ◽  
Sándor Gurbán ◽  
Miklós Menyhard ◽  
Aleksander Jablonski
Keyword(s):  
Monte Carlo ◽  
Electron Transport ◽  
Free Path ◽  
Photoelectron Spectroscopy ◽  
Electron Spectroscopy ◽  
Mean Free Path ◽  
Thin Layers ◽  
Elastic Peak ◽  
Surface Excitation ◽  
Inelastic Mean Free Path

Surface-sensitive electron spectroscopies, like Auger electron spectroscopy, X-ray photoelectron spectroscopy and elastic peak electron spectroscopy (EPES) are suitable techniques to investigate surfaces and thin layers. A theoretical model for electron transport is needed to process the observed electron spectra. Electron transport descriptions are based on the differential elastic cross sections for the sample atoms and the inelastic mean free path (IMFP) of backscattered electrons. An electron impinging on the sample can lose energy either due to surface or volume excitations. In the present work a Monte Carlo (MC) simulation of the elastic peak of Si, Ag, Ni, Cu, and Au for surface analysis is presented. The IMFP of Si was determined applying the EPES method. The integrated elastic peak ratio of Si with the standard metal reference samples corrected for surface excitation provided IMFP values of Si in the energy range E = 0.2–2.0 keV. Experiments were made with the ESA 31 HSA (ATOMKI) and with the DESA-100 (Staib) spectrometers. Surface correction was based on the application of Chen's model and material parameters. The Monte Carlo simulations of elastically backscattered electron trajectories were made using new EPESWIN software of Jablonski. An improvement of IMFP experimental results was achieved applying the presented procedure.

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