Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers
In this paper we present the synthesis and characterization of two novel copolymers obtained from a bithiophene unit carrying octylsulfanyl side chains and thienothiophene units substituted with keto (PK) or ester (PE) groups. Their structural, electrochemical and photophysical properties were inves...
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| Veröffentlicht in: | Polymer chemistry 2014-01, Vol.5 (7), p.2391-2400 |
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| creator | Morvillo, P. Diana, R. Fontanesi, C. Ricciardi, R. Lanzi, M. Mucci, A. Tassinari, F. Schenetti, L. Minarini, C. Parenti, F. |
| description | In this paper we present the synthesis and characterization of two novel copolymers obtained from a bithiophene unit carrying octylsulfanyl side chains and thienothiophene units substituted with keto (PK) or ester (PE) groups. Their structural, electrochemical and photophysical properties were investigated by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), NMR, UV-visible-NIR spectroscopy, cyclic voltammetry (CV) and atomic force microscopy (AFM). They possess good solubility in common organic solvents, filmability, proneness to form pi -stacks, moderate solvatochromism, good thermal stability and low band gap energy. They were tested as donor materials in combination with [70]PCBM (electron acceptor) in bulk-heterojunction polymer solar cells. The geometry of the devices is: glass/ITO/PEDOT:PSS/copolymer:[70]PCBM/Ca/Al. The external quantum efficiency curve of the best device, realized using a blend of PK : [70]PCBM, 1 : 2 weight ratio, shows a broad response from 350 to 1000 nm. The power conversion efficiency under 100 mW cm super(-2) AM 1.5G illumination is greater than 1%. |
| doi_str_mv | 10.1039/c3py01618h |
| format | Article |
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Their structural, electrochemical and photophysical properties were investigated by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), NMR, UV-visible-NIR spectroscopy, cyclic voltammetry (CV) and atomic force microscopy (AFM). They possess good solubility in common organic solvents, filmability, proneness to form pi -stacks, moderate solvatochromism, good thermal stability and low band gap energy. They were tested as donor materials in combination with [70]PCBM (electron acceptor) in bulk-heterojunction polymer solar cells. The geometry of the devices is: glass/ITO/PEDOT:PSS/copolymer:[70]PCBM/Ca/Al. The external quantum efficiency curve of the best device, realized using a blend of PK : [70]PCBM, 1 : 2 weight ratio, shows a broad response from 350 to 1000 nm. The power conversion efficiency under 100 mW cm super(-2) AM 1.5G illumination is greater than 1%.</description><subject>Aluminum</subject><subject>Atomic force microscopy</subject><subject>Copolymers</subject><subject>Devices</subject><subject>Illumination</subject><subject>Photovoltaic cells</subject><subject>Solar cells</subject><subject>Synthesis</subject><issn>1759-9954</issn><issn>1759-9962</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpFkMtKxEAQRRtRcBhn4xf0UoRoP_JqdzL4ggE3ug6VTrVpyaTb7gwSF-I_-Id-iYbRsRZVd3GqLnUJOebsjDOpzrX0I-M5L9s9MuNFphKlcrG_01l6SBYxPrOfkjwVMp-R95V7pTX0DX0CT73rxjWGSI0LFLzvrIbBup7ankbXQaAauy5e0Dj2Q4vRRjqt6hYC6AGDfdviztChtdi7n-58iz1-fXzuNNXuz-iIHBjoIi5-55w8Xl89LG-T1f3N3fJylWgp2ZBkRhheGGMkIgjIEZsGWV0wKCQroKlLkckmr2uj8kwJ4CBLhaaRumxSg1zOycn2rg_uZYNxqNY2Tr9Aj24TK54JptJM8gk93aI6uBgDmsoHu4YwVpxVU87Vf87yGy3sdlo</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Morvillo, P.</creator><creator>Diana, R.</creator><creator>Fontanesi, C.</creator><creator>Ricciardi, R.</creator><creator>Lanzi, M.</creator><creator>Mucci, A.</creator><creator>Tassinari, F.</creator><creator>Schenetti, L.</creator><creator>Minarini, C.</creator><creator>Parenti, F.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140101</creationdate><title>Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers</title><author>Morvillo, P. ; Diana, R. ; Fontanesi, C. ; Ricciardi, R. ; Lanzi, M. ; Mucci, A. ; Tassinari, F. ; Schenetti, L. ; Minarini, C. ; Parenti, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c330t-5f2f17fff3eea2a6eedde0b70a7307adb8253d6bbf96592a1a389efd3c8d4fe13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Aluminum</topic><topic>Atomic force microscopy</topic><topic>Copolymers</topic><topic>Devices</topic><topic>Illumination</topic><topic>Photovoltaic cells</topic><topic>Solar cells</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Morvillo, P.</creatorcontrib><creatorcontrib>Diana, R.</creatorcontrib><creatorcontrib>Fontanesi, C.</creatorcontrib><creatorcontrib>Ricciardi, R.</creatorcontrib><creatorcontrib>Lanzi, M.</creatorcontrib><creatorcontrib>Mucci, A.</creatorcontrib><creatorcontrib>Tassinari, F.</creatorcontrib><creatorcontrib>Schenetti, L.</creatorcontrib><creatorcontrib>Minarini, C.</creatorcontrib><creatorcontrib>Parenti, F.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Polymer chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Morvillo, P.</au><au>Diana, R.</au><au>Fontanesi, C.</au><au>Ricciardi, R.</au><au>Lanzi, M.</au><au>Mucci, A.</au><au>Tassinari, F.</au><au>Schenetti, L.</au><au>Minarini, C.</au><au>Parenti, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers</atitle><jtitle>Polymer chemistry</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>5</volume><issue>7</issue><spage>2391</spage><epage>2400</epage><pages>2391-2400</pages><issn>1759-9954</issn><eissn>1759-9962</eissn><abstract>In this paper we present the synthesis and characterization of two novel copolymers obtained from a bithiophene unit carrying octylsulfanyl side chains and thienothiophene units substituted with keto (PK) or ester (PE) groups. Their structural, electrochemical and photophysical properties were investigated by gel permeation chromatography (GPC), thermogravimetric analysis (TGA), NMR, UV-visible-NIR spectroscopy, cyclic voltammetry (CV) and atomic force microscopy (AFM). They possess good solubility in common organic solvents, filmability, proneness to form pi -stacks, moderate solvatochromism, good thermal stability and low band gap energy. They were tested as donor materials in combination with [70]PCBM (electron acceptor) in bulk-heterojunction polymer solar cells. The geometry of the devices is: glass/ITO/PEDOT:PSS/copolymer:[70]PCBM/Ca/Al. The external quantum efficiency curve of the best device, realized using a blend of PK : [70]PCBM, 1 : 2 weight ratio, shows a broad response from 350 to 1000 nm. The power conversion efficiency under 100 mW cm super(-2) AM 1.5G illumination is greater than 1%.</abstract><doi>10.1039/c3py01618h</doi><tpages>10</tpages></addata></record> |
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| ispartof | Polymer chemistry, 2014-01, Vol.5 (7), p.2391-2400 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Aluminum Atomic force microscopy Copolymers Devices Illumination Photovoltaic cells Solar cells Synthesis |
| title | Low band gap polymers for application in solar cells: synthesis and characterization of thienothiophene–thiophene copolymers |
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