| pubmed-article:18358044 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:18358044 | lifeskim:mentions | umls-concept:C0301869 | lld:lifeskim |
| pubmed-article:18358044 | pubmed:issue | 8 | lld:pubmed |
| pubmed-article:18358044 | pubmed:dateCreated | 2008-4-14 | lld:pubmed |
| pubmed-article:18358044 | pubmed:abstractText | The synthesis of two new tetrafullerene nanoconjugates in which four C60 units are covalently connected through different pi-conjugated oligomers (oligo(p-phenylene ethynylene) and oligo(p-phenylene vinylene)) is described. The photovoltaic (PV) response of these C60-based conjugates was evaluated by using them as the only active material in organic solar cells, showing a low PV performance. Photophysical studies in solution demonstrated a very fast ( approximately 10 ps) deactivation of the singlet excited state of the central core unit to produce both charge-separated species (i.e., C60*--oligomer+*-(C60)3 and C60 centered singlet excited states). The charge-separated state recombines partly to the C60 centered singlet state that undergoes subsequent intersystem crossing. Photophysical studies carried out in films support these data, exhibiting long-lived triplet excited states. For both tetrafullerene arrays, the low yield of long-lived charge carriers in thin films accounts for the limited PV response. On the contrary, utilizing the oligo(p-phenylene vinylene) centered precursor aldehyde as an electron donor and antennae unit and mixing with the well-known C60 derivative PCBM, the photophysical studies in films show the formation of long-lived charges. The PV devices constructed from these mixtures showed a relatively high photocurrent of 2 mA cm(-2). The sharp contrast between the nanoconjugates and the physical blends tentatively was attributed to improved charge dissociation and the collection of more favorable energy levels in the blends as a result of partial aggregation of both of the components. | lld:pubmed |
| pubmed-article:18358044 | pubmed:language | eng | lld:pubmed |
| pubmed-article:18358044 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:18358044 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:18358044 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:18358044 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:18358044 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:18358044 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:18358044 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:18358044 | pubmed:issn | 0022-3263 | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:FernandezGust... | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:GuldiDirk MDM | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:MartínNazario... | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:JanssenRené... | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:WienkMartijn... | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:AtienzaCarmen... | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:SanchezLuisL | lld:pubmed |
| pubmed-article:18358044 | pubmed:author | pubmed-author:VeldmanDirkD | lld:pubmed |
| pubmed-article:18358044 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:18358044 | pubmed:day | 18 | lld:pubmed |
| pubmed-article:18358044 | pubmed:volume | 73 | lld:pubmed |
| pubmed-article:18358044 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:18358044 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:18358044 | pubmed:pagination | 3189-96 | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:meshHeading | pubmed-meshheading:18358044... | lld:pubmed |
| pubmed-article:18358044 | pubmed:year | 2008 | lld:pubmed |
| pubmed-article:18358044 | pubmed:articleTitle | Tetrafullerene conjugates for all-organic photovoltaics. | lld:pubmed |
| pubmed-article:18358044 | pubmed:affiliation | Departamento de Química OrgAnica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain. | lld:pubmed |
| pubmed-article:18358044 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:18358044 | pubmed:publicationType | Research Support, U.S. Gov't, Non-P.H.S. | lld:pubmed |
| pubmed-article:18358044 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:18358044 | lld:pubmed |
