Highly-Tunable Nickel Cobalt Oxide as a Low-Temperature P-Type Contact in Organic Photovoltaic Devices

2012 ◽  
Vol 3 (4) ◽  
pp. 524-531 ◽  
Author(s):  
Paul F. Ndione ◽  
Andres Garcia ◽  
N. Edwin Widjonarko ◽  
Ajaya K. Sigdel ◽  
K. Xerxes Steirer ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cobalt Oxide ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Type Contact ◽  
P Type

Inverted structure organic photovoltaic devices employing a low temperature solution processed WO3 anode buffer layer

2012 ◽  
Vol 13 (11) ◽  
pp. 2479-2484 ◽  
Author(s):  
Ning Li ◽  
Tobias Stubhan ◽  
Norman A. Luechinger ◽  
Samuel C. Halim ◽  
Gebhard J. Matt ◽  
...  
Keyword(s):  
Low Temperature ◽  
Buffer Layer ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Inverted Structure ◽  
Solution Processed ◽  
Anode Buffer Layer ◽  
Temperature Solution

scholarly journals Enhancement of efficiency in organic photovoltaic devices containing self-complementary hydrogen-bonding domains

2013 ◽  
Vol 9 ◽  
pp. 1102-1110 ◽  
Author(s):  
Rohan J Kumar ◽  
Jegadesan Subbiah ◽  
Andrew B Holmes
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Fill Factor ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
One Dimensional ◽  
Self Organized ◽  
Active Layers ◽  
P Type

Self-complementary hydrogen-bonding domains were incorporated as the electron deficient unit in “push–pull”, p-type small molecules for organic photovoltaic active layers. Such compounds were found to enhance the fill factor, compared with similar non-self-organized compounds reported in the literature, leading to higher device efficiencies. Evidence is presented that the ability of these molecules to form one-dimensional hydrogen-bonded chains and subsequently exhibit hierarchical self-assembly into nanostructured domains can be correlated with improved device efficiency.

Sub-10 nm copper chromium oxide nanocrystals as a solution processed p-type hole transport layer for organic photovoltaics

2016 ◽  
Vol 4 (16) ◽  
pp. 3607-3613 ◽  
Author(s):  
Jian Wang ◽  
Yun-Ju Lee ◽  
Julia W. P. Hsu
Keyword(s):  
Chromium Oxide ◽  
Organic Photovoltaics ◽  
Hole Transport ◽  
Transport Layer ◽  
Organic Photovoltaic ◽  
Hole Transport Layer ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Solution Processed ◽  
P Type

Solution processed <10 nm CuCrO2 nanocrystals are demonstrated as an efficient p-type hole transport layer for organic photovoltaic devices.

scholarly journals Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Solvothermal Reaction ◽  
Step Method ◽  
One Pot ◽  
Widespread Application ◽  
Nickel Cobalt ◽  
Slow Kinetics ◽  
Nickel Cobalt Oxide

The renewable energy technologies require electrocatalysts for reactions, such as the oxygen and/or hydrogen evolution reaction (OER/HER). They are complex electrochemical reactions that take place through the direct transfer of electrons. However, mostly they have high over-potentials and slow kinetics, that is why they require electrocatalysts to lower the over-potential of the reactions and enhance the reaction rate. The commercially used catalysts (e.g., ruthenium nanoparticles—Ru, iridium nanoparticles—Ir, and their oxides: RuO2, IrO2, platinum—Pt) contain metals that have poor stability, and are not economically worthwhile for widespread application. Here, we propose the spinel structure of nickel-cobalt oxide (NiCo2O4) fabricated to serve as electrocatalyst for OER. These structures were obtained by a facile two-step method: (1) One-pot solvothermal reaction and subsequently (2) pyrolysis or carbonization, respectively. This material exhibits novel rod-like morphology formed by tiny spheres. The presence of transition metal particles such as Co and Ni due to their conductivity and electron configurations provides a great number of active sites, which brings superior electrochemical performance in oxygen evolution and good stability in long-term tests. Therefore, it is believed that we propose interesting low-cost material that can act as a super stable catalyst in OER.

Progress in Upscaling Organic Photovoltaic Devices

2021 ◽  
pp. 2100342
Author(s):  
Gabriel Bernardo ◽  
Tânia Lopes ◽  
David G. Lidzey ◽  
Adélio Mendes
Keyword(s):  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices
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