Department of Chemistry
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Enhancing electrochromic supercapacitor electrode performance through different donor compartments in D-A-D type conjugated polymers
Cevher, Duygu; Cevher, Şevki Can; Toppare, Levent Kamil; Çırpan, Ali (2023-12-25)
Conjugated polymers (CPs), particularly donor-acceptor-donor (D-A[sbnd]D) type polymers, have emerged as promising materials as supercapacitor electrode. In this study, 3-hexylthiophene and ethylenedioxythiophene (EDOT) as...
Recently developed benzodithiophene based organic solar cells: A review on materials and strategies
Cevher, Duygu; Cevher, Sevki Can; Çırpan, Ali (2023-12-01)
Organic solar cells (OSCs) a class of emerging photovoltaics for potentially disruptive technology have made progress significantly over the past two decades owing to their advantages of being cost-effective, having a low...
Copolymer versus bilayer composite: Electrochemical, electrochromic and capacitive properties of benzotriazole and edot containing conjugated polymers
Cevher, Duygu; Cevher, Şevki Can; Çırpan, Ali (2023-10-01)
In this study, benzotriazole-based homopolymer (P-TBtz), copolymer (C-TBtzEdot), and bilayer composites (B-TBtzEdot and B-EdotTBtz) were prepared by electrochemical polymerization. B-TBtzEdot and B-EdotTBtz differ only in ...
Unveiling the effect of side chains and fluorination on the photovoltaic performance of D-A copolymers: a comparative study of P-HBT-T, P-FBT-T and P-FBT-O
Yilmaz, Eda Alemdar; Cevher, Sevki Can; Cevher, Duygu; Hizalan, Gonul; Çırpan, Ali (2023-08-01)
Three random D-A copolymers containing thienopyrroledione (TPD) and benzodithiophene (BDT) named P-HBT-T, P-FBT-T, and P-FBT-O were synthesized. The effects of side chains on BDT and fluorination to benzothiadiazole on the...
Structure-Electrochemical Property Relationship of F vs 2F Substituents in Low Bandgap Conjugated Polymers
Cevher, Duygu; Toppare, Levent Kamil; Çırpan, Ali (2023-06-01)
Two alternating copolymers bearing fluorinated benzothiadiazole as a strong acceptor unit and dithienopyrrole as a strong donor unit were designed and synthesized to discuss the effect of the number of fluorine atom substi...
D-A-D type functional conducting polymer: Development of its electrochromic properties and laccase biosensor
UDUM, YASEMİN; Aktas Gemci, Melek; Cevher, Duygu; Soylemez, Saniye; Çırpan, Ali; Toppare, Levent Kamil (2023-03-15)
Herein, a novel D-A-D type monomer that contains hexylthiophene as the donor and benzo[c][1,2,5]thiadiazole as the acceptor has been electropolymerized successfully to yield P(DTFBT) and its electrochromic properties and p...
A follow-up investigation: Organic solar cells based on chalcogenophene-Thieno[3,4-c]pyrrole-4,6-dione-chalcogenophene containing random conjugated polymers
Alemdar, Eda; Yasa, Mustafa; Çırpan, Ali; Toppare, Levent (2023-03-01)
Herein, we conducted a comprehensive comparison between fullerene (FA) and non-fullerene (NFA) acceptor-based organic solar cells (OSCs). Four chalcogenophene-thieno[3,4-c]pyrrole-4,6-dione-chalcogenophene containing rando...
Gel electrolyte modification on D-A-D type conjugated polymer based supercapacitor
Çırpan, Ali; Cevher, Duygu; Cevher, Şevki Can (2023-03-01)
Dark conduction mechanisms of PTQBDT based heterojunction diode
Gullu, H. H.; Yildiz, D. E.; Hacioglu, S. O.; Çırpan, Ali; Toppare, Levent Kamil (2023-01-01)
Al:LiF/PTQBT:PCBM/PEDOT:PSS/ITO/glass organic-based diode is fabricated with different weight ratios in PTQBT:PCBM active layer. The diodes D1, D2 and D3 are prepared using the precursor solution for spin coating process a...
A flexible carbon nanofiber and conjugated polymer-based electrode for glucose sensing
BULUT, Umut; Oyku Sayin, Vuslat; Altin, Yasin; Can Cevher, Sevki; Çırpan, Ali; Celik Bedeloglu, Ayse; Soylemez, Saniye (2023-01-01)
Herein, a specific and stable biosensor for glucose using a flexible, modified electrode with a carbon nanofiber (CNF) and a novel conjugated polymer including three moieties of benzotriazole, benzodithiophene, and benzene...
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