Photodiodes made from poly(pyridopyrazine vinylene):polythiophene blends

Jonforsen, Maria; Ahmad, Iqbal; Johansson, Björn; Larsson, Jim; Roman, Lucimara S.; Svensson, Mattias; Inganäs, Olle; Andersson, Mats R.

doi:10.1016/s0379-6779(00)00644-5

Cited by 17 publications

(11 citation statements)

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“…[27][28][29] The poly(pyridopyrazinephenylene) polymer has been used in NIR light-emitting diodes; 30 another polymer, in which the PP moieties were conjugated with thiophene/fluorene units, has been used in field-effect transistors, with hole mobilities of up to 4.4 Â 10 -3 cm 2 V -1 s -1 . 31 To date, only a few PSCs prepared from PP-containing polymers have been investigated; [32][33][34][35] they have exhibited moderate PCEs (up to 1.1%) 34 because of their low molecular weights and/or poor solubility.…”

Section: Introductionmentioning

confidence: 99%

“…These PP -containing polymers have displayed higher electron-accepting abilities relative to that of quinoxaline-containing polymers because the former feature more electron-withdrawing nitrogen atoms in the fused ring. − The poly(pyridopyrazine-phenylene) polymer has been used in NIR light-emitting diodes; another polymer, in which the PP moieties were conjugated with thiophene/fluorene units, has been used in field-effect transistors, with hole mobilities of up to 4.4 × 10 −3 cm 2 V −1 s −1 . To date, only a few PSCs prepared from PP -containing polymers have been investigated; − they have exhibited moderate PCEs (up to 1.1%) because of their low molecular weights and/or poor solubility.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Pyrido[3,4-b]pyrazine-Based Low-Bandgap Copolymers for Bulk Heterojunction Solar Cells

et al. 2010

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We have used Stille polycondensation to prepare a series of low-bandgap copolymers, P1−P4, by conjugating the electron-accepting pyrido[3,4-b]pyrazine (PP) moieties with the electron-rich benzo[1,2-b:3,4-b′]dithiophene (BDT) or cyclopentadithiophene (CPDT) units. P1 and P3 are based on PP and BDT units while P2 and P4 are based on PP and CPDT units. All of these polymers exhibited excellent thermal stability and sufficient energy offsets for efficient charge transfer and dissociation, as determined through thermogravimetric analyses and cyclic voltammetry, respectively. The bandgaps of the polymers could be tuned in the range 1.46−1.60 eV by using the two different donors, which have different electron-donating abilities. The three-component copolymers, P3 and P4, incorporating the thiophene and bithiophene segments, respectively, absorbed broadly, covering the solar spectrum from 350 to 800 nm. The morphologies of the blends of P3 and P4 with [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM) were more homogeneous than those of P1 and P2; in addition, devices incorporating the P3 and P4 blends exhibited superior performance. The best device performance resulted from an active layer containing the P4:PC70BM blend; the short-circuit current was 10.85 mA cm−2 and the power conversion efficiency was 3.15%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Pyrido[3,4-b]pyrazine-Based Low-Bandgap Copolymers for Bulk Heterojunction Solar Cells

et al. 2010

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“…As with small molecule organic light emitting diodes ͑OLEDs͒, luminescent dyes may be blended into the ͑conjugated͒ polymer to improve luminescence efficiency 9,10 or to tune the color properties of OLEDs. [12][13][14][15][16] Polymer blends have also been investigated for application to photovoltaics, [17][18][19][20][21] lasers, 22 sensors, [23][24][25][26] and batteries. Processing and synthetic steps are both minimized in an actively pursued approach which aims to achieve electron-hole balance by blending two or more polymers, with different electron and hole transporting and luminescent characteristics.…”

Section: Introductionmentioning

confidence: 99%

Electroluminescent devices based on cross-linked polymer blends

Bozano¹,

Carter²,

Lee³

et al. 2003

Journal of Applied Physics

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“…Examples have been provided by Chiavarone et al [228], who incorporated a 2,5-O(CH 2 ) 12 O bridge, by Naso et al [229] who used various substituents starting from 2,3,5,6-tetrafluoro-1,4-diiodobenzene [230]. A pyridopyrazine substituent was introduced by Jonforsen et al [231], while 6.6 Inorganic Synthesis 461 the same group synthesized poly(quinoxaline vinylene)s and poly(pyridopyrazine vinylene)s [232].…”

Section: Polyphenylenevinylene and Related Materialsmentioning

confidence: 99%