Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Açık Bilim Politikası
Açık Bilim Politikası
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Poly((2-alkylbenzo[1,2,3]triazole-4,7-diyl)vinylene)s for Organic Solar Cells
Date
2015-11-01
Author
Akpinar, Handan
CEVHER, ŞEVKİ CAN
Wei, Lang
Çırpan, Ali
WONG, Bryan M.
Venkataraman, Dhandapani
Lahti, Paul M.
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
5
views
0
downloads
Poly((2-Alkylbenzo[1,2,3]triazole-4,7-diyl)vinylene)s (pBTzVs) synthesized by Stille coupling show different absorption spectra, solid-state morphology, and photovoltaic performance, depending on straight-chain versus branched-chain (pBTzV12 and pBTzV20) pendant substitution. Periodic boundary condition density functional computations show limited alkyl pendant effects on isolated chain electronic properties; however, pendants could influence polymer backbone conjugative planarity and polymer solid film packing. The polymers are electronically ambipolar, with best performance by pBTzV12 with hole and electron transport mobilities of 4.86 x 10(-6) and 1.96 x 10(-6) cm(2) V-1 s(-1), respectively. pBTzV12 gives a smooth film morphology, whereas pBTzV20 gives a very different fibrillar morphology. For ITO/PEDOT:PSS/(1:1 w/w polymer: PC71BM)/LiF/Al devices, pBTzV12 gives power conversion efficiency (PCE) up to 2.87%, and pBTzV20 gives up to PCE = 1.40%; both have open-circuit voltages of V-OC=0.6-0.7 V. (C) 2015 Wiley Periodicals, Inc.
Subject Keywords
Ambipolar polymers
,
Conjugated polymers
,
Electron microscopy
,
Heteroatom-containing polymers
,
Organic photovoltaics
,
Polyarylene vinylenes
,
Poly(benzotriazole vinylene)
,
Redox polymers
,
UV-vis spectroscopy
URI
https://hdl.handle.net/11511/34657
Journal
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
DOI
https://doi.org/10.1002/polb.23785
Collections
Department of Chemistry, Article