Synthesis and characterization of fluorene-based low-band gap copolymers containing propylenedioxythiophene and benzothiadiazole derivatives for bulk heterojunction photovoltaic cell applications

The following noble series of soluble π-conjugated statistical copolymers was synthesized by palladium catalyzed Suzuki polymerization: poly[(9,9-dioctylfluorene)-alt-(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] (PFO-PTBT) derived from poly(9,9-dioctylfluorene...

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Veröffentlicht in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2008-09, Vol.46 (18), p.6175-6184
Hauptverfasser: Park, Jin Su, Ryu, Tae In, Song, Myungkwan, Yoon, Kyung-Jin, Lee, Myung Jin, Shin, In Ae, Lee, Gi-Dong, Lee, Jae Wook, Gal, Yeong-Soon, Jin, Sung-Ho
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container_issue 18
container_start_page 6175
container_title Journal of polymer science. Part A, Polymer chemistry
container_volume 46
creator Park, Jin Su
Ryu, Tae In
Song, Myungkwan
Yoon, Kyung-Jin
Lee, Myung Jin
Shin, In Ae
Lee, Gi-Dong
Lee, Jae Wook
Gal, Yeong-Soon
Jin, Sung-Ho
description The following noble series of soluble π-conjugated statistical copolymers was synthesized by palladium catalyzed Suzuki polymerization: poly[(9,9-dioctylfluorene)-alt-(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] (PFO-PTBT) derived from poly(9,9-dioctylfluorene) (PFO) and poly[(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] poly(heptyl₄-PTBT). The structure and properties of these polymers were characterized using ¹H-, ¹³C-NMR, UV-visible spectroscopy, elemental analysis, GPC, DSC, TGA, photoluminescence (PL), and cyclic voltammetry (CV). The statistical copolymers, PFO-PTBT (9:1, 8.4:1.6, 6.5:3.5), were soluble in common organic solvents and easily spin coated onto indium-tin oxide (ITO) coated glass substrates. The weight-average molecular weight (Mw) and polydispersity of the PFO-PTBT ranged from (1.0-4.2) x 10⁴ and 1.5-2.3, respectively. Bulk heterojunction photovoltaic cells with an ITO/PEDOT/PFO-PTBT:PCBM/LiF/Al configuration were fabricated, and the devices using PFOPTBT (6.5:3.5) showed the best performance compared with those using PFO-PTBT (9:1, 8.4:1.6). A maximum power conversion efficiency (PCE) of 0.50% (Voc = 0.66 V, FF = 0.29) was achieved with PFO-PTBT (6.5:3.5).
doi_str_mv 10.1002/pola.22928
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The structure and properties of these polymers were characterized using ¹H-, ¹³C-NMR, UV-visible spectroscopy, elemental analysis, GPC, DSC, TGA, photoluminescence (PL), and cyclic voltammetry (CV). The statistical copolymers, PFO-PTBT (9:1, 8.4:1.6, 6.5:3.5), were soluble in common organic solvents and easily spin coated onto indium-tin oxide (ITO) coated glass substrates. The weight-average molecular weight (Mw) and polydispersity of the PFO-PTBT ranged from (1.0-4.2) x 10⁴ and 1.5-2.3, respectively. Bulk heterojunction photovoltaic cells with an ITO/PEDOT/PFO-PTBT:PCBM/LiF/Al configuration were fabricated, and the devices using PFOPTBT (6.5:3.5) showed the best performance compared with those using PFO-PTBT (9:1, 8.4:1.6). A maximum power conversion efficiency (PCE) of 0.50% (Voc = 0.66 V, FF = 0.29) was achieved with PFO-PTBT (6.5:3.5).</description><identifier>ISSN: 0887-624X</identifier><identifier>EISSN: 1099-0518</identifier><identifier>DOI: 10.1002/pola.22928</identifier><identifier>CODEN: JPLCAT</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Applied sciences ; conjugated polymers ; copolymerization ; Energy ; Exact sciences and technology ; fullerenes ; Natural energy ; Organic polymers ; Photovoltaic conversion ; Physicochemistry of polymers ; Polymers with particular properties ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; Solar cells. Photoelectrochemical cells ; Solar energy</subject><ispartof>Journal of polymer science. 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Part A, Polymer chemistry</title><addtitle>J. Polym. Sci. A Polym. Chem</addtitle><description>The following noble series of soluble π-conjugated statistical copolymers was synthesized by palladium catalyzed Suzuki polymerization: poly[(9,9-dioctylfluorene)-alt-(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] (PFO-PTBT) derived from poly(9,9-dioctylfluorene) (PFO) and poly[(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] poly(heptyl₄-PTBT). The structure and properties of these polymers were characterized using ¹H-, ¹³C-NMR, UV-visible spectroscopy, elemental analysis, GPC, DSC, TGA, photoluminescence (PL), and cyclic voltammetry (CV). The statistical copolymers, PFO-PTBT (9:1, 8.4:1.6, 6.5:3.5), were soluble in common organic solvents and easily spin coated onto indium-tin oxide (ITO) coated glass substrates. The weight-average molecular weight (Mw) and polydispersity of the PFO-PTBT ranged from (1.0-4.2) x 10⁴ and 1.5-2.3, respectively. Bulk heterojunction photovoltaic cells with an ITO/PEDOT/PFO-PTBT:PCBM/LiF/Al configuration were fabricated, and the devices using PFOPTBT (6.5:3.5) showed the best performance compared with those using PFO-PTBT (9:1, 8.4:1.6). A maximum power conversion efficiency (PCE) of 0.50% (Voc = 0.66 V, FF = 0.29) was achieved with PFO-PTBT (6.5:3.5).</description><subject>Applied sciences</subject><subject>conjugated polymers</subject><subject>copolymerization</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>fullerenes</subject><subject>Natural energy</subject><subject>Organic polymers</subject><subject>Photovoltaic conversion</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>Solar cells. 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Chem</addtitle><date>2008-09-15</date><risdate>2008</risdate><volume>46</volume><issue>18</issue><spage>6175</spage><epage>6184</epage><pages>6175-6184</pages><issn>0887-624X</issn><eissn>1099-0518</eissn><coden>JPLCAT</coden><abstract>The following noble series of soluble π-conjugated statistical copolymers was synthesized by palladium catalyzed Suzuki polymerization: poly[(9,9-dioctylfluorene)-alt-(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] (PFO-PTBT) derived from poly(9,9-dioctylfluorene) (PFO) and poly[(4,7-bis(3',3'-dihepyl-3,4-propylenedioxythienyl)-2,1,3-benzothiadiazole)] poly(heptyl₄-PTBT). The structure and properties of these polymers were characterized using ¹H-, ¹³C-NMR, UV-visible spectroscopy, elemental analysis, GPC, DSC, TGA, photoluminescence (PL), and cyclic voltammetry (CV). The statistical copolymers, PFO-PTBT (9:1, 8.4:1.6, 6.5:3.5), were soluble in common organic solvents and easily spin coated onto indium-tin oxide (ITO) coated glass substrates. The weight-average molecular weight (Mw) and polydispersity of the PFO-PTBT ranged from (1.0-4.2) x 10⁴ and 1.5-2.3, respectively. Bulk heterojunction photovoltaic cells with an ITO/PEDOT/PFO-PTBT:PCBM/LiF/Al configuration were fabricated, and the devices using PFOPTBT (6.5:3.5) showed the best performance compared with those using PFO-PTBT (9:1, 8.4:1.6). A maximum power conversion efficiency (PCE) of 0.50% (Voc = 0.66 V, FF = 0.29) was achieved with PFO-PTBT (6.5:3.5).</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/pola.22928</doi><tpages>10</tpages></addata></record>
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subjects Applied sciences
conjugated polymers
copolymerization
Energy
Exact sciences and technology
fullerenes
Natural energy
Organic polymers
Photovoltaic conversion
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Solar cells. Photoelectrochemical cells
Solar energy
title Synthesis and characterization of fluorene-based low-band gap copolymers containing propylenedioxythiophene and benzothiadiazole derivatives for bulk heterojunction photovoltaic cell applications
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