Organic solar cells fabricated on inkjet-printed indium tin oxide electrodes

The electrical performance of indium tin oxide (ITO) coated glass was improved by including a controlled layer of carbon nanotubes directly on top of the ITO film. Multiwall carbon nanotubes (MWCNTs) were synthesized by chemical vapor deposition, using ultrathin Fe layers as catalyst. The process parameters (temperature, gas flow and duration) were carefully refined to obtain the appropriate size and density of MWCNTs with a minimum decrease of the light harvesting in the cell. When used as anodes for organic solar cells based on poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM), the MWCNT-enhanced electrodes are found to improve the charge-carrier extraction from the photoactive blend, thanks to the additional percolation paths provided by the CNTs. The work function of as-modified ITO surfaces was measured by the Kelvin probe method to be 4.95 eV, resulting in an improved matching to the highest occupied molecular orbital level of the P3HT. This is in turn expected to increase the hole transport and collection at the anode, contributing to the significant increase of current density and open-circuit voltage observed in test cells created with such MWCNT-enhanced electrodes.

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Chemically Modified Indium‐Tin‐Oxide Electrodes for Heterojunction Organic Solar Cells Based on Different Organic Donors

ChemistrySelect ◽

10.1002/slct.201700482 ◽

2017 ◽

Vol 2 (15) ◽

pp. 4230-4233

Author(s):

Ganbaatar Tumen‐Ulzii ◽

Delgerjargal Altantsetseg ◽

Nyamjargal Ochirkhuyag ◽

Delgertsetseg Byambasuren ◽

Masaru Sakomura ◽

...

Keyword(s):

Solar Cells ◽

Tin Oxide ◽

Organic Solar Cells ◽

Indium Tin Oxide ◽

Chemically Modified ◽

Oxide Electrodes

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Ag-Pd-Cu alloy inserted transparent indium tin oxide electrodes for organic solar cells

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films ◽

10.1116/1.4891560 ◽

2014 ◽

Vol 32 (5) ◽

pp. 051507 ◽

Cited By ~ 11

Author(s):

Hyo-Joong Kim ◽

Ki-Won Seo ◽

Han-Ki Kim ◽

Yong-Jin Noh ◽

Seok-In Na

Keyword(s):

Solar Cells ◽

Tin Oxide ◽

Organic Solar Cells ◽

Indium Tin Oxide ◽

Cu Alloy ◽

Oxide Electrodes

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Organic Solar Cells: Three-Dimensional Nanostructured Indium-Tin-Oxide Electrodes for Enhanced Performance of Bulk Heterojunction Organic Solar Cells (Adv. Energy Mater. 7/2014)

Advanced Energy Materials ◽

10.1002/aenm.201470031 ◽

2014 ◽

Vol 4 (7) ◽

pp. n/a-n/a

Author(s):

Hyunah Kwon ◽

Juyoung Ham ◽

Dong Yeong Kim ◽

Seung Jae Oh ◽

Subin Lee ◽

...

Keyword(s):

Solar Cells ◽

Tin Oxide ◽

Organic Solar Cells ◽

Indium Tin Oxide ◽

Bulk Heterojunction ◽

Three Dimensional ◽

Oxide Electrodes ◽

Energy Mater

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Ag Doped Zinc Tin Oxide as Cathode for Organic Photovoltaic Cells

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.209-211.1719 ◽

2012 ◽

Vol 209-211 ◽

pp. 1719-1722

Author(s):

Ming Guo Zhang ◽

Nan Hai Sun

Keyword(s):

Solar Cells ◽

Tin Oxide ◽

Organic Solar Cells ◽

Indium Tin Oxide ◽

Bulk Heterojunction ◽

Indium Tin Oxide Electrode ◽

Heterojunction Solar Cells ◽

Visible Part ◽

Cell Architecture ◽

Zinc Tin Oxide

A thin Ag layer embedded between layers of zinc tin oxide (ZTO) are compared to cells using an indium tin oxide electrode was investigated for inverted organic bulk heterojunction solar cells employing a multilayer electrode. ZTO/Ag/ ZTO (ZAZ) electrode is the preparation at room temperature, a high transparency in the visible part of the spectrum, and a very low sheet resistance comparable to treated ITO without the need for any thermal post deposition treatment as it is necessary for ITO. The In-free ZAZ electrodes exhibit a favorable work function of 4.3 eV and are shown to allow for excellent electron extraction even without a further interlayer. This renders ZAZ a perfectly suited bottom electrode for inverted organic solar cells with simplified cell architecture.

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