The importance of p―n junction interfaces for efficient small molecule-based organic solar cells
The efficiency of small-molecule solar cells critically depends on the match of the junction of the donor and acceptor semiconductors used in these devices to create charged carriers and on the mobility of individual components to transport holes and electrons. In the present study, a 2% efficient b...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2012-04, Vol.14 (15), p.5284-5288 |
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| creator | CHOU, Wei-Yang JAY CHANG YEN, Chia-Te LIN, Yi-Sheng TANG, Fu-Ching LIU, Shyh-Jiun CHENG, Horng-Long HSU, Steve Lien-Chung CHEN, Jen-Sue |
| description | The efficiency of small-molecule solar cells critically depends on the match of the junction of the donor and acceptor semiconductors used in these devices to create charged carriers and on the mobility of individual components to transport holes and electrons. In the present study, a 2% efficient bilayer organic solar cell consisting of a p-type semiconductor, pentacene, and an n-type semiconductor, N,N'-diheptyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(7)), is fabricated. The morphology of PTCDI-C(7) interestingly follows pentacene due to the matched surface energy of these two active layers and the easily deposited PTCDI-C(7) monomers on an inclined plane of the pentacene grains. This condition results in the low trap states in the PTCDI-C(7) film and at the pentacene/PTCDI-C(7) interface for the enhancement of exciton dissociation and carrier transport compared with the photoactive layer comprised of pentacene and N,N-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(13)). The detailed exciton and carrier transport mechanisms are investigated using time-resolved photoluminescence and X-ray diffraction spectroscopy. |
| doi_str_mv | 10.1039/c2cp24047e |
| format | Article |
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In the present study, a 2% efficient bilayer organic solar cell consisting of a p-type semiconductor, pentacene, and an n-type semiconductor, N,N'-diheptyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(7)), is fabricated. The morphology of PTCDI-C(7) interestingly follows pentacene due to the matched surface energy of these two active layers and the easily deposited PTCDI-C(7) monomers on an inclined plane of the pentacene grains. This condition results in the low trap states in the PTCDI-C(7) film and at the pentacene/PTCDI-C(7) interface for the enhancement of exciton dissociation and carrier transport compared with the photoactive layer comprised of pentacene and N,N-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(13)). The detailed exciton and carrier transport mechanisms are investigated using time-resolved photoluminescence and X-ray diffraction spectroscopy.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/c2cp24047e</identifier><identifier>PMID: 22402615</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Carrier transport ; Chemistry ; Devices ; Diimide ; Exact sciences and technology ; General and physical chemistry ; Pentacene ; Photovoltaic cells ; Semiconductors ; Solar cells ; Surface energy ; Surface physical chemistry</subject><ispartof>Physical chemistry chemical physics : PCCP, 2012-04, Vol.14 (15), p.5284-5288</ispartof><rights>2015 INIST-CNRS</rights><rights>This journal is © the Owner Societies 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c415t-a02972942c6759a6a0b8a8904837bc8f7b00398ee948e757aac8cf3976de26783</citedby><cites>FETCH-LOGICAL-c415t-a02972942c6759a6a0b8a8904837bc8f7b00398ee948e757aac8cf3976de26783</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25726410$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22402615$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>CHOU, Wei-Yang</creatorcontrib><creatorcontrib>JAY CHANG</creatorcontrib><creatorcontrib>YEN, Chia-Te</creatorcontrib><creatorcontrib>LIN, Yi-Sheng</creatorcontrib><creatorcontrib>TANG, Fu-Ching</creatorcontrib><creatorcontrib>LIU, Shyh-Jiun</creatorcontrib><creatorcontrib>CHENG, Horng-Long</creatorcontrib><creatorcontrib>HSU, Steve Lien-Chung</creatorcontrib><creatorcontrib>CHEN, Jen-Sue</creatorcontrib><title>The importance of p―n junction interfaces for efficient small molecule-based organic solar cells</title><title>Physical chemistry chemical physics : PCCP</title><addtitle>Phys Chem Chem Phys</addtitle><description>The efficiency of small-molecule solar cells critically depends on the match of the junction of the donor and acceptor semiconductors used in these devices to create charged carriers and on the mobility of individual components to transport holes and electrons. In the present study, a 2% efficient bilayer organic solar cell consisting of a p-type semiconductor, pentacene, and an n-type semiconductor, N,N'-diheptyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(7)), is fabricated. The morphology of PTCDI-C(7) interestingly follows pentacene due to the matched surface energy of these two active layers and the easily deposited PTCDI-C(7) monomers on an inclined plane of the pentacene grains. This condition results in the low trap states in the PTCDI-C(7) film and at the pentacene/PTCDI-C(7) interface for the enhancement of exciton dissociation and carrier transport compared with the photoactive layer comprised of pentacene and N,N-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(13)). 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In the present study, a 2% efficient bilayer organic solar cell consisting of a p-type semiconductor, pentacene, and an n-type semiconductor, N,N'-diheptyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(7)), is fabricated. The morphology of PTCDI-C(7) interestingly follows pentacene due to the matched surface energy of these two active layers and the easily deposited PTCDI-C(7) monomers on an inclined plane of the pentacene grains. This condition results in the low trap states in the PTCDI-C(7) film and at the pentacene/PTCDI-C(7) interface for the enhancement of exciton dissociation and carrier transport compared with the photoactive layer comprised of pentacene and N,N-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C(13)). The detailed exciton and carrier transport mechanisms are investigated using time-resolved photoluminescence and X-ray diffraction spectroscopy.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><pmid>22402615</pmid><doi>10.1039/c2cp24047e</doi><tpages>5</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Carrier transport Chemistry Devices Diimide Exact sciences and technology General and physical chemistry Pentacene Photovoltaic cells Semiconductors Solar cells Surface energy Surface physical chemistry |
| title | The importance of p―n junction interfaces for efficient small molecule-based organic solar cells |
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