Solution processable benzotriazole and fluorene containing copolymers for photovoltaic applications
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Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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. UVvis and electrochemical studies indicated that polymers have desirable HOMOLUMO and band gap energy levels, enabling efficient electron transfer when blending them with fullerene derivatives. Photovoltaic properties of the copolymers mixed with [6,6] phenyl-C61-butyric acid methyl ester (PCBM), were investigated. P2 exhibited the best device performance with an open circuit voltage of 0.6 V, short circuit current of 3.4 mA/cm 2 and power conversion efficiency of 0.56% under Air mass 1.5 Global (AM 1.5G, 100 mW/cm 2) illumination. Hole mobilities of the polymers were calculated using space charge limited current (SCLC) method and found to be in the order of 10 -5 for P1 and P2 and 10 -4 for P3. © 2011 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Benzotriazole, Donoracceptor, Fluorene, Organic Solar Cell
Kaynak
Solar Energy Materials and Solar Cells
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
99
Sayı
Künye
Kaya, E., Apaydın, D. H., Yıldız, D. E., Toppare, L. K., Çırpan, A. (2012). Solution processable benzotriazole and fluorene containing copolymers for photovoltaic applications. Solar Energy Materials and Solar Cells, 99, 321-326.
