Açık Akademik Arşiv Sistemi

Novel D-pi-A organic dyes for DSSCs based on dibenzo[b,h] [1,6] naphthyridine as a pi-bridge

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dc.contributor.authors Arslan, BS; Guzel, E; Kaya, T; Durmaz, V; Keskin, M; Avci, D; Nebioglu, M; Sisman, I;
dc.date.accessioned 2020-01-20T08:02:40Z
dc.date.available 2020-01-20T08:02:40Z
dc.date.issued 2019
dc.identifier.citation Arslan, BS; Guzel, E; Kaya, T; Durmaz, V; Keskin, M; Avci, D; Nebioglu, M; Sisman, I; (2019). Novel D-pi-A organic dyes for DSSCs based on dibenzo[b,h] [1,6] naphthyridine as a pi-bridge. DYES AND PIGMENTS, 164, 197-188
dc.identifier.issn 0143-7208
dc.identifier.uri https://hdl.handle.net/20.500.12619/32297
dc.identifier.uri https://doi.org/10.1016/j.dyepig.2019.01.027
dc.description.abstract A new series of D-pi-A organic dyes bearing fused dibenzo[b,h] [1,6]naphthyridine as the conjugated pi-bridge, a cyanoacrylic acid moiety as the electron acceptor/anchoring group and different electron donor groups such as trimethoxy (5a), methoxy (5b) and dimethylamino (5c), were designed and synthesized for dye-sensitized solar cells (DSSCs), for the first time. The effect of donor groups on the performance of the DSSCs was systematically investigated using optical, electrochemical, theoretical and photovoltaic methods. Compared to dyes 5a and 5b, 5c showed a broader and more red-shifted absorption spectrum due to stronger electron donating ability of dimethylamino moiety, which is beneficial for absorbing more photons and thus generating high photocurrent, As a result, the DSSC fabricated with dye 5c has the highest power conversion efficiency of 5.02% (similar to 60% relative to N719-based standard cell), which is greater than those obtained by 5a and 5b-sensitized solar cells (3.22% and 2.13%, respectively) under standard air mass 1.5 global (AM 1.5 G) conditions. The improved photovoltaic performance mainly came from better photocurrent, as also confirmed by IPCE measurements. These results suggest that dibenzo[b,h] [1,6]naphthyridine pi-bridge bearing a strong electron donor group is a promising candidate to construct effective D-pi-A organic dyes for DSSCs.
dc.language English
dc.publisher ELSEVIER SCI LTD
dc.subject Materials Science
dc.title Novel D-pi-A organic dyes for DSSCs based on dibenzo[b,h] [1,6] naphthyridine as a pi-bridge
dc.type Article
dc.identifier.volume 164
dc.identifier.startpage 188
dc.identifier.endpage 197
dc.contributor.department Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü
dc.contributor.saüauthor Güzel, Emre
dc.contributor.saüauthor Avcı, Davut
dc.contributor.saüauthor Nebioğlu, Mehmet
dc.contributor.saüauthor Şişman, İlkay
dc.relation.journal DYES AND PIGMENTS
dc.identifier.wos WOS:000460718200026
dc.identifier.doi 10.1016/j.dyepig.2019.01.027
dc.identifier.eissn 1873-3743
dc.contributor.author Barn Seckin Arslan
dc.contributor.author Güzel, Emre
dc.contributor.author Tugba Kaya
dc.contributor.author Veysel Durmaz
dc.contributor.author Merve Keskin
dc.contributor.author Avcı, Davut
dc.contributor.author Nebioğlu, Mehmet
dc.contributor.author Şişman, İlkay
dc.contributor.author Ilkay Sisman


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