Voltammetry of Lithium Polysulfides at Metal Electrodes

1986 ◽  
Vol 133 (8) ◽  
pp. 1549-1554 ◽  
Author(s):  
J. C. Dobson ◽  
F. R. McLarnon ◽  
E. J. Cairns
Keyword(s):  
Metal Electrodes

Improving the Organic Semiconductor- Metal Contact Interface in Printed High Performance Organic TFTs

2012 ◽  
Vol 1402 ◽  
Author(s):  
Kanan Puntambekar ◽  
Lisa Stecker ◽  
Kurt Ulmer ◽  
Themistokles Afentakis ◽  
Steven Droes
Keyword(s):  
Organic Semiconductor ◽  
High Performance ◽  
Thin Film Transistor ◽  
Device Performance ◽  
Organic Thin Film ◽  
Contact Interface ◽  
Organic Thin Film Transistor ◽  
Metal Electrodes ◽  
Free Surfaces ◽  
Gas Plasma

ABSTRACTOptimization of the interface between the organic semiconductor (OSC) & the source-drain (S/D) electrode is critical in order to improve organic thin film transistor (OTFT) device performance. This process typically involves coating the metal S/D electrodes with an optimal self-assembled thiol layer; a process that requires pristine metal surfaces for successful treatment. Obtaining contamination free surfaces can be challenging in the case of printed metal electrodes. Here we demonstrate an effective strategy to address this issue by introducing a brief low power forming gas plasma treatment prior to the surface coating step. We show a two orders of magnitude decrease in the contact resistance as a result of this treatment.

scholarly journals Chemical anti-corrosion strategy for stable inverted perovskite solar cells

2020 ◽  
Vol 6 (51) ◽  
pp. eabd1580
Author(s):  
Xiaodong Li ◽  
Sheng Fu ◽  
Wenxiao Zhang ◽  
Shanzhe Ke ◽  
Weijie Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Electrochemical Corrosion ◽  
Metal Electrodes ◽  
Maximum Power Point ◽  
Perovskite Layer ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Organic Corrosion Inhibitor ◽  
Power Point

One big challenge for long-lived inverted perovskite solar cells (PSCs) is that commonly used metal electrodes react with perovskite layer, inducing electrode corrosion and device degradation. Motivated by the idea of metal anticorrosion, here, we propose a chemical anticorrosion strategy to fabricate stable inverted PSCs through introducing a typical organic corrosion inhibitor of benzotriazole (BTA) before Cu electrode deposition. BTA molecules chemically coordinate to the Cu electrode and form an insoluble and polymeric film of [BTA-Cu], suppressing the electrochemical corrosion and reaction between perovskite and the Cu electrode. PSCs with BTA/Cu show excellent air stability, retaining 92.8 ± 1.9% of initial efficiency after aging for 2500 hours. In addition, >90% of initial efficiency is retained after 85°C aging for over 1000 hours. PSCs with BTA/Cu also exhibit good operational stability, and 88.6 ± 2.6% of initial efficiency is retained after continuous maximum power point tracking for 1000 hours.

New Nonvolatile Memory Effect Showing Reproducible Large Resistance Ratio Employing Nano-gap Gold Junction

2007 ◽  
Vol 997 ◽  
Author(s):  
Yasuhisa Naitoh ◽  
Masayo Horikawa ◽  
Tetsuo Shimizu
Keyword(s):  
Bias Voltage ◽  
Nonvolatile Memory ◽  
Negative Resistance ◽  
Applied Bias Voltage ◽  
Metal Electrodes ◽  
Resistance Change ◽  
Characteristic Behaviour ◽  
High Bias ◽  
High Level ◽  
Gap Width

AbstractA large negative resistance is observed in the I-V characteristics of gold nanogap junction when high-bias voltages are applied. This phenomenon is characteristic behaviour on the nanometre scale; it only occurs for gap widths slightly under 13 nm. Furthermore, this junction exhibits a non-volatile resistance hysteresis when the bias voltage is reduced very rapidly from a high level to around 0 V, and when the bias voltage is reduced slowly. This non-volatile resistance change occurs as a result of changes in the gap width between the metal electrodes, brought about by the applied bias voltage.

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