Mechanical degradation and stability of organic solar cells: molecular and microstructural determinants

2015 ◽  
Vol 8 (1) ◽  
pp. 55-80 ◽  
Author(s):  
Suchol Savagatrup ◽  
Adam D. Printz ◽  
Timothy F. O'Connor ◽  
Aliaksandr V. Zaretski ◽  
Daniel Rodriquez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Solar Cells ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Failure Mechanisms ◽  
Mechanical Failure ◽  
Operational Stability ◽  
Mechanical Degradation ◽  
Roll To Roll

The mechanical properties of organic semiconductors and the mechanical failure mechanisms of devices play critical roles in the yield of modules in roll-to-roll manufacturing and the operational stability of organic solar cells.

scholarly journals Synthesis and Theoretical Investigation Using DFT of 2,3-Diphenylquinoxaline Derivatives for Electronic and Photovoltaic Effects

2021 ◽  
Author(s):  
Dorota Zając ◽  
Dariusz Przybylski ◽  
Jadwiga Sołoducho
Keyword(s):  
Solar Cells ◽  
Acrylic Acid ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Low Cost ◽  
Design Synthesis ◽  
Semiconducting Properties ◽  
Homo Lumo

AbstractDeveloping effective and low‐cost organic semiconductors is an opportunity for the development of organic solar cells (OPV). Herein, we report the molecular design, synthesis and characterization of two molecules with D–A–D–A configuration: 2-cyano-3-(5-(8-(3,4-ethylenodioxythiophen-5-yl)-2,3-diphenylquinoxalin-5-yl)thiophen-2-yl)acrylic acid (6) and 2-cyano-3-(5-(2,3-diphenyl-8-(thiophen-2-yl)quinoxalin-5-yl)thiophen-2-yl)acrylic acid (7). Moreover, we investigated the structural, theoretical and optical properties. The distribution of HOMO/LUMO orbitals and the values of the ionization potential indicate good semiconducting properties of the compounds and that they can be a bipolar material. Also, the optical study show good absorption in visible light (λabs 380–550 nm). We investigate the theoretical optoelectronic properties of obtained compounds as potential materials for solar cells.

Star-shaped organic semiconductors with planar triazine core and diketopyrrolopyrrole branches for solution-processed small-molecule organic solar cells

2015 ◽  
Vol 115 ◽  
pp. 35-49 ◽  
Author(s):  
Sheng-Yi Shiau ◽  
Chun-Ho Chang ◽  
Wei-Jen Chen ◽  
Hsing-Ju Wang ◽  
Ru-Jong Jeng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Semiconductors ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Solution Processed

Solar Cell Manufacturing Method with the Structure of the Bulk Heterojunction Based on Organic Semiconductors with a Direct Architecture

2016 ◽  
Vol 845 ◽  
pp. 224-227 ◽  
Author(s):  
Danila Saranin ◽  
Marina Orlova ◽  
Sergey Didenko ◽  
Oleg Rabinovich ◽  
Andrey Kryukov
Keyword(s):  
Solar Cells ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Research Output ◽  
Bulk Heterojunction ◽  
Organic Basis ◽  
Manufacturing Method ◽  
Current Voltage ◽  
Current Voltage Characteristics

This article presents the results of research output voltage characteristics of solar cells on an organic basis with the use of P3HT: PCBM system. There were produced organic solar cells in a coating in air, current-voltage characteristics were measured. It was determined the characteristic influence of a substrate cleaning and annealing temperature of layers applied on fill factor and conversion efficiency.

Organic and nano-structured composite photovoltaics: An overview

2005 ◽  
Vol 20 (12) ◽  
pp. 3167-3179 ◽  
Author(s):  
Sophie E. Gledhill ◽  
Brian Scott ◽  
Brian A. Gregg
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Organic Materials ◽  
Low Cost ◽  
Open Circuit ◽  
Charge Generation ◽  
Dye Sensitized ◽  
Excitonic Solar Cells

Organic photovoltaic devices are poised to fill the low-cost, low power niche in the solar cell market. Recently measured efficiencies of solid-state organic cells are nudging 5% while Grätzel’s more established dye-sensitized solar cell technology is more than double this. A fundamental understanding of the excitonic nature of organic materials is an essential backbone for device engineering. Bound electron-hole pairs, “excitons,” are formed in organic semiconductors on photo-absorption. In the organic solar cell, the exciton must diffuse to the donor–accepter interface for simultaneous charge generation and separation. This interface is critical as the concentration of charge carriers is high and recombination here is higher than in the bulk. Nanostructured engineering of the interface has been utilized to maximize organic materials properties, namely to compensate the poor exciton diffusion lengths and lower mobilities. Excitonic solar cells have different limitations on their open-circuit photo-voltages due to these high interfacial charge carrier concentrations, and their behavior cannot be interpreted as if they were conventional solar cells. This article briefly reviews some of the differences between excitonic organic solar cells and conventional inorganic solar cells and highlights some of the technical strategies used in this rapidly progressing field, whose ultimate aim is for organic solar cells to be a commercial reality.

scholarly journals Self-Assembled Monolayer Enables Hole Transport Layer-Free Organic Solar Cells with 18% Efficiency and Improved Operational Stability

2020 ◽  
Vol 5 (9) ◽  
pp. 2935-2944 ◽  
Author(s):  
Yuanbao Lin ◽  
Yuliar Firdaus ◽  
Furkan H. Isikgor ◽  
Mohamad Insan Nugraha ◽  
Emre Yengel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Hole Transport ◽  
Operational Stability ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Self Assembled Monolayer ◽  
Self Assembled

Roll-to-Roll Fabrication of Bulk Heterojunction Plastic Solar Cells using the Reverse Gravure Coating Technique

2008 ◽  
Vol 1091 ◽  
Author(s):  
Daniel Tobjork ◽  
Harri Aarnio ◽  
Tapio Mäkelä ◽  
Ronald Österbacka
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Acid Methyl Ester ◽  
Ambient Air ◽  
Plastic Substrate ◽  
Heterojunction Solar Cells ◽  
Coating Technique ◽  
Roll To Roll ◽  
Poly Styrene Sulfonate

AbstractThe roll-to-roll reverse gravure (RG) coating technique was used to produce thin homogeneous films (∼100 nm) for organic bulk heterojunction solar cells. The conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and the active layer regioregular poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) were successfully subsequently RG coated on an ITO covered plastic substrate in ambient air. Working solar cells were achieved after annealing and thermal evaporation of the top contact. The AM1.5 power conversion efficiency (PCE) of the RG coated organic solar cells was determined to 0.74% (at 100 mW/cm2). This was very similar to the results of a reference device that was spin coated on a glass substrate in a nitrogen glove box.

Comparison of inorganic electron transport layers in fully roll-to-roll coated/printed organic photovoltaics in normal geometry

2016 ◽  
Vol 4 (41) ◽  
pp. 15986-15996 ◽  
Author(s):  
Thomas R. Andersen ◽  
Furqan Almyahi ◽  
Nathan A. Cooling ◽  
Daniel Elkington ◽  
Lauren Wiggins ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Inorganic Materials ◽  
Roll To Roll

Four different inorganic materials as electrode transport layers in fully roll-to-roll P3HT:ICxA organic solar cells were investigated.

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