Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Silver nanowire networks on polydimethylsiloxane for organic and perovskite solar cell electrodes
Download
index.pdf
Date
2019
Author
Güner, Elif Özlem
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
322
views
197
downloads
Cite This
Transparent and conductive electrodes are widely used in optoelectronic devices. The most prominent and commercial transparent conductive electrode is indium tin oxide (ITO). However, there is an increasing demand to replace ITO with alternative materials due to inherent drawbacks of ITO such as its cost, brittleness and scarcity of indium. Silver nanowire (Ag NW) networks are among the best candidates to replace ITO with their excellent optoelectronic and mechanical properties. Ag NW networks have already been demonstrated as electrodes in a wide range of applications such as transparent heaters, flexible displays, stretchable electronics and photovoltaic devices. However, there are still some challenges in obtaining a uniform Ag NW network on different substrates. In this thesis, a polydimethylsiloxane (PDMS) assisted transfer method was developed to overcome this problem. Ag NWs synthesized via polyol process were spray coated onto glass substrates in network form. PDMS was then casted onto Ag NW networks and peeled off following curing to transfer Ag NWs onto PDMS surface. This transparent Ag NW embedded PDMS substrates were then used as electrodes in both organic and perovskite based solar cells. First, a semi-transparent organic solar cell (OSC) with Ag NW/PDMS electrodes was demonstrated using a commercially available and a novel polymer as the photoactive layers. Power conversion efficiencies of above 2% and 3% was obtained from these cells with architectures of glass/ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag NW/PDMS and glass/ITO/ZnO/PBDB-T:ITIC/PEDOT:PSS/Ag NW-PDMS, respectively, under AM 1.5G illumination conditions. Secondly, a mesoporous perovskite solar cell was demonstrated using Ag NW/PDMS electrodes and commercially available photoactive layers. The cells based on glass/FTO/k-TiO2/m-TiO2/Perovskite/Spiro-OMeTAD/Ag NW/PDMS architecture showed a power conversion efficiency of 6.5% under AM 1.5G illumination conditions. PDMS assisted transfer method utilized herein offers a simple, solution-based and transparent alternative to evaporation method for the formation of solar cell electrodes.
Subject Keywords
Silver.
,
Silver nanowire networks
,
transparent conducting electrodes
,
organic solar cells
,
perovskite solar cells.
URI
http://etd.lib.metu.edu.tr/upload/12623880/index.pdf
https://hdl.handle.net/11511/44098
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Silver nanowire inks for fabrics
Güven, Merve Nur; Toppare, Levent Kamil; Department of Chemistry (2019)
Conductive inks are used extensively in electronic devices like sensors, batteries, photovoltaic devices, antenna and organic light emitting diodes. These inks typically made from silver. Wearable technology is another industry which requires inks to be flexible. These devices need low temperature cured silver pastes. Low temperature pastes typically make use of silver nanoparticles. These pastes have some problems with sintering and substrate adhesion. In this thesis, to overcome these problems, silver nan...
Characterization and contact resistivity studies of ito thin films for use in silicon heterojunction solar cells
Güler, Seçil; Erçelebi, A. Çiğdem.; Department of Physics (2020)
Transparent conductive oxides (TCO) are widely used in optoelectronic devices such as flat panel displays and solar cells. Indium tin oxide, due to its wide optical bandgap and high transmittance in the visible spectrum, is commonly used for device applications such as anti-reflective coating, front TCO layer in silicon heterojunction solar cells. When ITO is used as TCO layer, the carrier transport mechanism through the junction is improved due to the decrease in the free carrier absorption. In this study,...
Dual-band high-frequency metamaterial absorber based on patch resonator for solar cell applications and its enhancement with graphene layers
Ustunsoy, Mehmet Pasa; Sabah, Cumali (2016-12-05)
In this paper, a dual-band high-frequency metamaterial absorber based on patch resonator is designed and analyzed for solar cells. In order to obtain a metamaterial absorber, metal-semiconductor-metal layers are combined. The results of the designed structure are shown in the infrared and visible ranges of solar spectrum. Structural parameters and dimensions of the device have a significant importance on the performance of the designed absorber. The simulations are carried out with full-wave electromagnetic...
Flexible supercapacitor electrodes with vertically aligned carbon nanotubes grown on aluminum foils
Dogru, Itir Bakis; Durukan, Mete Batuhan; Turel, Onur; Ünalan, Hüsnü Emrah (2016-06-01)
In this work, vertically aligned carbon nanotubes (VACNTs) grown on aluminum foils were used as flexible supercapacitor electrodes. Aluminum foils were used as readily available, cheap and conductive substrates, and VACNTs were grown directly on these foils through chemical vapor deposition (CVD) method. Solution based ultrasonic spray pyrolysis (USP) method was used for the deposition of the CNT catalyst. Direct growth of VACNTs on aluminum foils ruled out both the internal resistance of the supercapacitor...
Polymer light emitting diodes and organic solar cells towards ito free devices and high efficiency devices using electrochemically synthesized polymers /
Hızalan Özsoy, Gönül; Toppare, Levent Kamil; Department of Chemistry (2017)
In this study, polymer based solar cells and polymer based light emitting diodes were constructed. In the third and fourth chapters of this study, effect of terminal units and effect of molecular weight on electroluminescence and photovoltaic properties were investigated. Triphenyl end capped polymer P1 based PLED shows luminance value of 10411cd/m2 at 8.5V whereas benzene end capped polymer P2 based PLED has the peak luminance value of 14583cd/m2 at 8V. P2 based photovoltaic devices exhibited superior perf...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
E. Ö. Güner, “Silver nanowire networks on polydimethylsiloxane for organic and perovskite solar cell electrodes,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Metallurgical and Materials Engineering., Middle East Technical University, 2019.