Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
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
Non-fullerene organic solar cells based on thienopyrroledione comprising random copolymers; effect of alkyl chains
Download
renewable.pdf
Date
2020-12-09
Author
Yaşa, Mustafa
Depci, Tolga
Alemdar, Eda
Özdemir Hacioğlu, Şerife
Çırpan, Ali
Toppare, Levent Kamil
Metadata
Show full item record
Item Usage Stats
417
views
99
downloads
Cite This
Two new random copolymers, signed as P1 and P2, were designed and synthesized. 5-(2-ethylhexyl)-4Hthieno[3,4-c]pyrrole-4,6(5H)-dione (TPD) was utilized as electron-accepting moiety whereas selenophenewas utilized as spacer, 4,8-bis[5-(2-ethylhexyl) thiophen-2-yl]-2,6-bis(trimethylstannyl)benzo[1,2-b:4,5-b’](BDT(TiC8)), thiophene and alkylthiophene were utilized as donor moieties. Structural analyses of thepolymers were carried out by attenuated total Reflectance-Fourier-transform infrared spectroscopy(ATR−FTIR). Weight-average and number-average molecular weights (Mw, Mn) of the polymers weredetermined via size exclusion chromatography (SEC). Electrochemical and spectroelectrochemicalmeasurements were performed to investigate optoelectronic properties. The polymers were used asdonor polymers in active layer to fabricate non-fullerene, bulk heterojunction (BHJ) organic solar cells(OSCs). BHJ solar cells' device structure is ITO/PEDOT: PSS/Active Layer/LiF/Al, where active layer consistsof ITIC as acceptor and thienopyrroledione containing donors. Various optimization studies (solventselection, donor: determination of acceptor ratio, active layer’s mass ratio optimizations, determinationof the active layer's thickness, additive selection and thermal annealing) were carried out to obtain thebest performance from the devices. The device based on P1: ITIC (1:1) blend with a thickness of 161 nmgave the best performance with a power conversion efficiency (PCE) of 7.94 %. The highest PCE obtainedfrom P2 based organic solar cell is 1.96 %. P2 exhibited low solubility attributed to the lack of alkyl groupsenhancing polymer solubility, electronic properties, and photovoltaic performances. Our study representsa synthetic approach to exhibit alkyl chains' effect on OSCs' performance based on TPD containing randompolymers and non-fullerene acceptors.
URI
http://pvcon.org/pvcon2020-abstractbook/
https://hdl.handle.net/11511/80527
Collections
Department of Chemistry, Conference / Seminar
Suggestions
OpenMETU
Core
Non-fullerene organic photovoltaics based on thienopyrroledione comprising random copolymers; effect of alkyl chains
Yasa, Mustafa; Yılmaz, Ayşen; Alemdar, Eda; Hacioglu, Serife O.; Çırpan, Ali; Toppare, Levent Kamil (2021-11-01)
Two new random donor-acceptor (D-A) copolymers, signed as P1 and P2, were designed and synthesized. Electrochemical and spectroelectrochemical measurements were performed to investigate absorption, energy levels, electronic and optical band gaps for comparison. The polymers were used as donor polymers in the active layer to fabricate non-fullerene, bulk heterojunction (BHJ) organic photovoltaics (OPVs). Investigations were carried out through the conventional BHJ structure; ITO/PEDOT: PSS/Active Layer/LiF/A...
Solution processable benzotriazole and fluorene containing copolymers for photovoltaic applications
KAYA, Emine; APAYDIN, Dogukan Hazar; Yildiz, Dilber Esra; Toppare, Levent Kamil; Çırpan, Ali (2012-04-01)
2-Dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating copolymers poly((9,9-dioctylfluorene)-2,7-diyl-(2-dodecyl-benzo[1,2,3]triazole)) (P1), poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl-benzo[1,2,3]triazole)) (P2), poly((9,9-dioctylfluorene)-2,7-diyl-(4,7-bis(3-hexylthien-5-yl) 2-dodecyl benzo[1,2,3]triazole)) (P3) were synthesized via a typical Suzuki coupling polymerization. UV-vis and electrochemical studies indicated that polymers have desirable HOMO-LUMO and band ...
Solution processable benzotriazole and fluorene containing copolymers for photovoltaic applications
Kaya, Emine; Çırpan, Ali; Toppare, Levent Kamil; Department of Chemistry (2011)
2-Dodecyl benzotriazole and 9,9-dioctylfluorene containing alternating copolymers poly((9,9-dioctylfluorene)-2,7-diyl-(2-dodecyl-benzo[1,2,3]triazole)) (P1), poly((9,9-dioc-tylfluorene)-2,7-diyl-(4,7-bis(thien-2-yl) 2-dodecyl benzo[1,2,3]triazole)) (P2), poly((9,9 dioctylfluorene)-2,7-diyl-(4,7-bis(3-hexylthien-5-yl) 2-dodecyl-benzo[1,2,3]triazole)) (P3) were synthesized via Suzuki polycondensation. Synthesized monomers and copolymers were characterized by Nuclear Magnetic Resonance (1H-NMR, 13C-NMR). Optic...
Seismic upgrade of reinforced concrete slab-column connections using carbon fiber-reinforced polymers
Stark, A; Binici, Barış; Bayrak, O (2005-03-01)
The results of an experimental program on seismic upgrade of slab-column connections are presented in this paper Two of the four slab-column specimens designed according to ACI 318-63 code provisions were upgraded by externally installed carbon fiber-reinforced polymer (CFRP) stirrups and the other two, designed and detailed according to the ACI 318-63 and ACI 318-02 codes, respectively, served as control specimens. Specimens were tested under constant gravity shear and lateral displacements were applied in...
Numerical Modelling and Experimental Analysis of Vibratory and Acoustics Behaviours of a Special Design Squirrel-Cage Three-Phase Asynchronous Machine
Ionescu, R. M.; Negoita, A.; N'Diaye, A.; Torregrossa, D.; Djerdir, A.; Miraoui, A.; Scutaru, Gh. (2011-09-10)
The paper presents a comparison between the obtained results from testing a special design 5 kW squirrel-cage three-phase asynchronous machine and the numerical model of the same machine, simulated under the FLUX2D Finite Element Software. The aim is to validate the numerical model in the loaded and unloaded cases. The resulting model will be used for further research into the vibratory behaviour and noise of the motor. In this paper, an experimental approach is used to show the influence of load on motor v...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Yaşa, T. Depci, E. Alemdar, Ş. Özdemir Hacioğlu, A. Çırpan, and L. K. Toppare, “Non-fullerene organic solar cells based on thienopyrroledione comprising random copolymers; effect of alkyl chains,” 2020, Accessed: 00, 2021. [Online]. Available: http://pvcon.org/pvcon2020-abstractbook/.