Energy Level Alignment of Molybdenum Oxide on Colloidal Lead Sulfide (PbS) Thin Films for Optoelectronic Devices

2018 ◽  
Vol 10 (30) ◽  
pp. 24981-24986 ◽  
Author(s):  
Diogenes Placencia ◽  
Paul Lee ◽  
Joseph G. Tischler ◽  
Erin L. Ratcliff
Keyword(s):  
Thin Films ◽  
Energy Level ◽  
Molybdenum Oxide ◽  
Lead Sulfide ◽  
Optoelectronic Devices ◽  
Energy Level Alignment ◽  
Colloidal Lead

Effects of Processing Conditions on the Work Function and Energy-Level Alignment of NiO Thin Films

2010 ◽  
Vol 114 (46) ◽  
pp. 19777-19781 ◽  
Author(s):  
Mark T. Greiner ◽  
Michael G. Helander ◽  
Zhi-Bin Wang ◽  
Wing-Man Tang ◽  
Zheng-Hong Lu
Keyword(s):  
Thin Films ◽  
Energy Level ◽  
Work Function ◽  
Processing Conditions ◽  
Energy Level Alignment

scholarly journals Crystalline Molybdenum Oxide Thin-Films for Application as Interfacial Layers in Optoelectronic Devices

2017 ◽  
Vol 9 (8) ◽  
pp. 7717-7724 ◽  
Author(s):  
André L. F. Cauduro ◽  
Roberto dos Reis ◽  
Gong Chen ◽  
Andreas K. Schmid ◽  
Christophe Méthivier ◽  
...  
Keyword(s):  
Thin Films ◽  
Molybdenum Oxide ◽  
Optoelectronic Devices ◽  
Oxide Thin Films ◽  
Interfacial Layers

Energy Level Modification in Lead Sulfide Quantum Dot Thin Films through Ligand Exchange

ACS Nano ◽  
2014 ◽  
Vol 8 (6) ◽  
pp. 5863-5872 ◽  
Author(s):  
Patrick R. Brown ◽  
Donghun Kim ◽  
Richard R. Lunt ◽  
Ni Zhao ◽  
Moungi G. Bawendi ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Level ◽  
Quantum Dot ◽  
Lead Sulfide ◽  
Ligand Exchange

Molybdenum oxide thin films in CdTe-based electronic and optoelectronic devices

2016 ◽  
Vol 10 (4) ◽  
pp. 346-349 ◽  
Author(s):  
M. M. Solovan ◽  
V. V. Brus ◽  
A. I. Mostovyi ◽  
P. D. Maryanchuk ◽  
E. Tresso ◽  
...  
Keyword(s):  
Thin Films ◽  
Molybdenum Oxide ◽  
Optoelectronic Devices ◽  
Oxide Thin Films

scholarly journals Design of Promising Heptacoordinated Organotin (IV) Complexes-PEDOT: PSS-Based Composite for New-Generation Optoelectronic Devices Applications

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1023
Author(s):  
María Elena Sánchez-Vergara ◽  
Leon Hamui ◽  
Elizabeth Gómez ◽  
Guillermo M. Chans ◽  
José Miguel Galván-Hidalgo
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Optoelectronic Devices ◽  
Density Variation ◽  
Structural Modifications ◽  
Mixed Ligands ◽  
Vis Spectroscopy ◽  
Group A ◽  
Poly Styrene Sulfonate ◽  
New Generation

The synthesis of four mononuclear heptacoordinated organotin (IV) complexes of mixed ligands derived from tridentated Schiff bases and pyrazinecarboxylic acid is reported. This organotin (IV) complexes were prepared by using a multicomponent reaction, the reaction proceeds in moderate to good yields (64% to 82%). The complexes were characterized by UV-vis spectroscopy, IR spectroscopy, mass spectrometry, 1H, 13C, and 119Sn nuclear magnetic resonance (NMR) and elemental analysis. The spectroscopic analysis revealed that the tin atom is seven-coordinate in solution and that the carboxyl group acts as monodentate ligand. To determine the effect of the substituent on the optoelectronic properties of the organotin (IV) complexes, thin films were deposited, and the optical bandgap was obtained. A bandgap between 1.88 and 1.98 eV for the pellets and between 1.23 and 1.40 eV for the thin films was obtained. Later, different types of optoelectronic devices with architecture “contacts up/base down” were manufactured and analyzed to compare their electrical behavior. The design was intended to generate a composite based on the synthetized heptacoordinated organotin (IV) complexes embedded on the poly(3,4-ethylenedyoxithiophene)-poly(styrene sulfonate) (PEDOT:PSS). A Schottky curve at low voltages (<1.5 mV) and a current density variation of as much as ~3 × 10−5 A/cm2 at ~1.1 mV was observed. A generated photocurrent was of approximately 10−7 A and a photoconductivity between 4 × 10−9 and 7 × 10−9 S/cm for all the manufactured structures. The structural modifications on organotin (IV) complexes were focused on the electronic nature of the substituents and their ability to contribute to the electronic delocalization via the π system. The presence of the methyl group, a modest electron donor, or the non-substitution on the aromatic ring, has a reduced effect on the electronic properties of the molecule. However, a strong effect in the electronic properties of the material can be inferred from the presence of electron-withdrawing substituents like chlorine, able to reduce the gap energies.

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