Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells
Length of the terminal alkyl chains at dicyanovinyl (DCV) groups of two dithienosilole (DTS) containing small molecules (DTS(Oct)2‐(2T‐DCV‐Me)2 and DTS(Oct)2‐(2T‐DCV‐Hex)2 ) is investigated to evaluate how this affects the molecular solubility and blend morphology as well as their performance in bul...
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| creator | Min, Jie Luponosov, Yuriy N. Gasparini, Nicola Richter, Moses Bakirov, Artem V. Shcherbina, Maxim A. Chvalun, Sergei N. Grodd, Linda Grigorian, Souren Ameri, Tayebeh Ponomarenko, Sergei A. Brabec, Christoph J. |
| description | Length of the terminal alkyl chains at dicyanovinyl (DCV) groups of two dithienosilole (DTS) containing small molecules (DTS(Oct)2‐(2T‐DCV‐Me)2
and DTS(Oct)2‐(2T‐DCV‐Hex)2
) is investigated to evaluate how this affects the molecular solubility and blend morphology as well as their performance in bulk heterojunction organic solar cells (OSCs). While the DTS(Oct)2‐(2T‐DCV‐Me)2
(a solubility of 5 mg mL−1) system exhibits both high short circuit current density (J
sc) and high fill factor, the DTS(Oct)2‐(2T‐DCV‐Hex)2
(a solubility of 24 mg mL−1) system in contrast suffers from a poor blend morphology as examined by atomic force morphology and grazing incidence X‐ray scattering measurements, which limit the photovoltaic properties. The charge generation, transport, and recombination dynamics associated with the limited device performance are investigated for both systems. Nongeminate recombination losses in DTS(Oct)2‐(2T‐DCV‐Hex)2
system are demonstrated to be significant by combining space charge limited current analysis and light intensity dependence of current–voltage characteristics in combination with photogenerated charge carrier extraction by linearly increasing voltage and transient photovoltage measurements. DTS(Oct)2‐(2T‐DCV‐Me)2
in contrast performs nearly ideal with no evidence of nongeminate recombination, space charge effects, or mobility limitation. These results demonstrate the importance of alkyl chain engineering for solution‐processed OSCs based on small molecules as an essential design tool to overcome transport limitations.
The length of the terminal alkyl chains at dicyanovinyl groups of two dithienosilole containing small molecules is investigated to evaluate how such parameter influences the molecular solubility, blend morphology, and transport limitations as well as their photovoltaic performance in bulk heterojunction solar cells. |
| doi_str_mv | 10.1002/aenm.201500386 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1770368370</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3801082791</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5246-e04dabcefac285d084a73d7da053a825751188072a366e196cd1028b74fb6be53</originalsourceid><addsrcrecordid>eNqFkU-P0zAQxSMEEquyV86WuHBoih3HTnosVbeLtF3-bNEerYkz2aZ17GIngn4qviIORRXigg-2NfN-z9a8JHnN6IxRmr0DtN0so0xQykv5LLlikuWpLHP6_HLn2cvkOoQ9jSufM8r5VfJz1TSo-0BcQxbmcDJki75rLRiy3EFrY8OSjfPHnTPu6TQdq_4JyRoteuhbZ6dk68GGo_P9lICtyRfUrquixdglG9Q7sG3oAmkteXBmGMvpJ-80hoA1eejAmPiEQT0YJO8HcyC32KN3-8Hq3x6RAk-WaEx4lbxowAS8_nNOkq83q-3yNr37uP6wXNylWmS5TJHmNVQaG9BZKWpa5lDwuqiBCg5lJgrBWFnSIgMuJbK51DWjWVkVeVPJCgWfJG_Pvkfvvg0YetW1QccfgEU3BMWKgvI40rhPkjf_SPdu8HGCoyq6irkQ86ianVXauxA8Nuro2w78STGqxgjVGKG6RBiB-Rn43ho8_UetFqv7zd9sembb0OOPCwv-oGTBC6Ee79dKfs74jdg-qjX_BSEcsO0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1710259559</pqid></control><display><type>article</type><title>Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells</title><source>Wiley Online Library Journals Frontfile Complete</source><creator>Min, Jie ; Luponosov, Yuriy N. ; Gasparini, Nicola ; Richter, Moses ; Bakirov, Artem V. ; Shcherbina, Maxim A. ; Chvalun, Sergei N. ; Grodd, Linda ; Grigorian, Souren ; Ameri, Tayebeh ; Ponomarenko, Sergei A. ; Brabec, Christoph J.</creator><creatorcontrib>Min, Jie ; Luponosov, Yuriy N. ; Gasparini, Nicola ; Richter, Moses ; Bakirov, Artem V. ; Shcherbina, Maxim A. ; Chvalun, Sergei N. ; Grodd, Linda ; Grigorian, Souren ; Ameri, Tayebeh ; Ponomarenko, Sergei A. ; Brabec, Christoph J.</creatorcontrib><description>Length of the terminal alkyl chains at dicyanovinyl (DCV) groups of two dithienosilole (DTS) containing small molecules (DTS(Oct)2‐(2T‐DCV‐Me)2
and DTS(Oct)2‐(2T‐DCV‐Hex)2
) is investigated to evaluate how this affects the molecular solubility and blend morphology as well as their performance in bulk heterojunction organic solar cells (OSCs). While the DTS(Oct)2‐(2T‐DCV‐Me)2
(a solubility of 5 mg mL−1) system exhibits both high short circuit current density (J
sc) and high fill factor, the DTS(Oct)2‐(2T‐DCV‐Hex)2
(a solubility of 24 mg mL−1) system in contrast suffers from a poor blend morphology as examined by atomic force morphology and grazing incidence X‐ray scattering measurements, which limit the photovoltaic properties. The charge generation, transport, and recombination dynamics associated with the limited device performance are investigated for both systems. Nongeminate recombination losses in DTS(Oct)2‐(2T‐DCV‐Hex)2
system are demonstrated to be significant by combining space charge limited current analysis and light intensity dependence of current–voltage characteristics in combination with photogenerated charge carrier extraction by linearly increasing voltage and transient photovoltage measurements. DTS(Oct)2‐(2T‐DCV‐Me)2
in contrast performs nearly ideal with no evidence of nongeminate recombination, space charge effects, or mobility limitation. These results demonstrate the importance of alkyl chain engineering for solution‐processed OSCs based on small molecules as an essential design tool to overcome transport limitations.
The length of the terminal alkyl chains at dicyanovinyl groups of two dithienosilole containing small molecules is investigated to evaluate how such parameter influences the molecular solubility, blend morphology, and transport limitations as well as their photovoltaic performance in bulk heterojunction solar cells.</description><identifier>ISSN: 1614-6832</identifier><identifier>EISSN: 1614-6840</identifier><identifier>DOI: 10.1002/aenm.201500386</identifier><language>eng</language><publisher>Weinheim: Blackwell Publishing Ltd</publisher><subject>blend morphology ; Dynamical systems ; Dynamics ; molecular solubility ; Morphology ; organic solar cells ; Photovoltaic cells ; recombination dynamics ; Solar cells ; Solubility ; Transport ; Transport buildings, stations and terminals ; transport limitations</subject><ispartof>Advanced energy materials, 2015-09, Vol.5 (17), p.np-n/a</ispartof><rights>2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5246-e04dabcefac285d084a73d7da053a825751188072a366e196cd1028b74fb6be53</citedby><cites>FETCH-LOGICAL-c5246-e04dabcefac285d084a73d7da053a825751188072a366e196cd1028b74fb6be53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faenm.201500386$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faenm.201500386$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27903,27904,45553,45554</link.rule.ids></links><search><creatorcontrib>Min, Jie</creatorcontrib><creatorcontrib>Luponosov, Yuriy N.</creatorcontrib><creatorcontrib>Gasparini, Nicola</creatorcontrib><creatorcontrib>Richter, Moses</creatorcontrib><creatorcontrib>Bakirov, Artem V.</creatorcontrib><creatorcontrib>Shcherbina, Maxim A.</creatorcontrib><creatorcontrib>Chvalun, Sergei N.</creatorcontrib><creatorcontrib>Grodd, Linda</creatorcontrib><creatorcontrib>Grigorian, Souren</creatorcontrib><creatorcontrib>Ameri, Tayebeh</creatorcontrib><creatorcontrib>Ponomarenko, Sergei A.</creatorcontrib><creatorcontrib>Brabec, Christoph J.</creatorcontrib><title>Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells</title><title>Advanced energy materials</title><addtitle>Adv. Energy Mater</addtitle><description>Length of the terminal alkyl chains at dicyanovinyl (DCV) groups of two dithienosilole (DTS) containing small molecules (DTS(Oct)2‐(2T‐DCV‐Me)2
and DTS(Oct)2‐(2T‐DCV‐Hex)2
) is investigated to evaluate how this affects the molecular solubility and blend morphology as well as their performance in bulk heterojunction organic solar cells (OSCs). While the DTS(Oct)2‐(2T‐DCV‐Me)2
(a solubility of 5 mg mL−1) system exhibits both high short circuit current density (J
sc) and high fill factor, the DTS(Oct)2‐(2T‐DCV‐Hex)2
(a solubility of 24 mg mL−1) system in contrast suffers from a poor blend morphology as examined by atomic force morphology and grazing incidence X‐ray scattering measurements, which limit the photovoltaic properties. The charge generation, transport, and recombination dynamics associated with the limited device performance are investigated for both systems. Nongeminate recombination losses in DTS(Oct)2‐(2T‐DCV‐Hex)2
system are demonstrated to be significant by combining space charge limited current analysis and light intensity dependence of current–voltage characteristics in combination with photogenerated charge carrier extraction by linearly increasing voltage and transient photovoltage measurements. DTS(Oct)2‐(2T‐DCV‐Me)2
in contrast performs nearly ideal with no evidence of nongeminate recombination, space charge effects, or mobility limitation. These results demonstrate the importance of alkyl chain engineering for solution‐processed OSCs based on small molecules as an essential design tool to overcome transport limitations.
The length of the terminal alkyl chains at dicyanovinyl groups of two dithienosilole containing small molecules is investigated to evaluate how such parameter influences the molecular solubility, blend morphology, and transport limitations as well as their photovoltaic performance in bulk heterojunction solar cells.</description><subject>blend morphology</subject><subject>Dynamical systems</subject><subject>Dynamics</subject><subject>molecular solubility</subject><subject>Morphology</subject><subject>organic solar cells</subject><subject>Photovoltaic cells</subject><subject>recombination dynamics</subject><subject>Solar cells</subject><subject>Solubility</subject><subject>Transport</subject><subject>Transport buildings, stations and terminals</subject><subject>transport limitations</subject><issn>1614-6832</issn><issn>1614-6840</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkU-P0zAQxSMEEquyV86WuHBoih3HTnosVbeLtF3-bNEerYkz2aZ17GIngn4qviIORRXigg-2NfN-z9a8JHnN6IxRmr0DtN0so0xQykv5LLlikuWpLHP6_HLn2cvkOoQ9jSufM8r5VfJz1TSo-0BcQxbmcDJki75rLRiy3EFrY8OSjfPHnTPu6TQdq_4JyRoteuhbZ6dk68GGo_P9lICtyRfUrquixdglG9Q7sG3oAmkteXBmGMvpJ-80hoA1eejAmPiEQT0YJO8HcyC32KN3-8Hq3x6RAk-WaEx4lbxowAS8_nNOkq83q-3yNr37uP6wXNylWmS5TJHmNVQaG9BZKWpa5lDwuqiBCg5lJgrBWFnSIgMuJbK51DWjWVkVeVPJCgWfJG_Pvkfvvg0YetW1QccfgEU3BMWKgvI40rhPkjf_SPdu8HGCoyq6irkQ86ianVXauxA8Nuro2w78STGqxgjVGKG6RBiB-Rn43ho8_UetFqv7zd9sembb0OOPCwv-oGTBC6Ee79dKfs74jdg-qjX_BSEcsO0</recordid><startdate>20150901</startdate><enddate>20150901</enddate><creator>Min, Jie</creator><creator>Luponosov, Yuriy N.</creator><creator>Gasparini, Nicola</creator><creator>Richter, Moses</creator><creator>Bakirov, Artem V.</creator><creator>Shcherbina, Maxim A.</creator><creator>Chvalun, Sergei N.</creator><creator>Grodd, Linda</creator><creator>Grigorian, Souren</creator><creator>Ameri, Tayebeh</creator><creator>Ponomarenko, Sergei A.</creator><creator>Brabec, Christoph J.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150901</creationdate><title>Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells</title><author>Min, Jie ; Luponosov, Yuriy N. ; Gasparini, Nicola ; Richter, Moses ; Bakirov, Artem V. ; Shcherbina, Maxim A. ; Chvalun, Sergei N. ; Grodd, Linda ; Grigorian, Souren ; Ameri, Tayebeh ; Ponomarenko, Sergei A. ; Brabec, Christoph J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5246-e04dabcefac285d084a73d7da053a825751188072a366e196cd1028b74fb6be53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>blend morphology</topic><topic>Dynamical systems</topic><topic>Dynamics</topic><topic>molecular solubility</topic><topic>Morphology</topic><topic>organic solar cells</topic><topic>Photovoltaic cells</topic><topic>recombination dynamics</topic><topic>Solar cells</topic><topic>Solubility</topic><topic>Transport</topic><topic>Transport buildings, stations and terminals</topic><topic>transport limitations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Min, Jie</creatorcontrib><creatorcontrib>Luponosov, Yuriy N.</creatorcontrib><creatorcontrib>Gasparini, Nicola</creatorcontrib><creatorcontrib>Richter, Moses</creatorcontrib><creatorcontrib>Bakirov, Artem V.</creatorcontrib><creatorcontrib>Shcherbina, Maxim A.</creatorcontrib><creatorcontrib>Chvalun, Sergei N.</creatorcontrib><creatorcontrib>Grodd, Linda</creatorcontrib><creatorcontrib>Grigorian, Souren</creatorcontrib><creatorcontrib>Ameri, Tayebeh</creatorcontrib><creatorcontrib>Ponomarenko, Sergei A.</creatorcontrib><creatorcontrib>Brabec, Christoph J.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Advanced energy materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Min, Jie</au><au>Luponosov, Yuriy N.</au><au>Gasparini, Nicola</au><au>Richter, Moses</au><au>Bakirov, Artem V.</au><au>Shcherbina, Maxim A.</au><au>Chvalun, Sergei N.</au><au>Grodd, Linda</au><au>Grigorian, Souren</au><au>Ameri, Tayebeh</au><au>Ponomarenko, Sergei A.</au><au>Brabec, Christoph J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells</atitle><jtitle>Advanced energy materials</jtitle><addtitle>Adv. Energy Mater</addtitle><date>2015-09-01</date><risdate>2015</risdate><volume>5</volume><issue>17</issue><spage>np</spage><epage>n/a</epage><pages>np-n/a</pages><issn>1614-6832</issn><eissn>1614-6840</eissn><abstract>Length of the terminal alkyl chains at dicyanovinyl (DCV) groups of two dithienosilole (DTS) containing small molecules (DTS(Oct)2‐(2T‐DCV‐Me)2
and DTS(Oct)2‐(2T‐DCV‐Hex)2
) is investigated to evaluate how this affects the molecular solubility and blend morphology as well as their performance in bulk heterojunction organic solar cells (OSCs). While the DTS(Oct)2‐(2T‐DCV‐Me)2
(a solubility of 5 mg mL−1) system exhibits both high short circuit current density (J
sc) and high fill factor, the DTS(Oct)2‐(2T‐DCV‐Hex)2
(a solubility of 24 mg mL−1) system in contrast suffers from a poor blend morphology as examined by atomic force morphology and grazing incidence X‐ray scattering measurements, which limit the photovoltaic properties. The charge generation, transport, and recombination dynamics associated with the limited device performance are investigated for both systems. Nongeminate recombination losses in DTS(Oct)2‐(2T‐DCV‐Hex)2
system are demonstrated to be significant by combining space charge limited current analysis and light intensity dependence of current–voltage characteristics in combination with photogenerated charge carrier extraction by linearly increasing voltage and transient photovoltage measurements. DTS(Oct)2‐(2T‐DCV‐Me)2
in contrast performs nearly ideal with no evidence of nongeminate recombination, space charge effects, or mobility limitation. These results demonstrate the importance of alkyl chain engineering for solution‐processed OSCs based on small molecules as an essential design tool to overcome transport limitations.
The length of the terminal alkyl chains at dicyanovinyl groups of two dithienosilole containing small molecules is investigated to evaluate how such parameter influences the molecular solubility, blend morphology, and transport limitations as well as their photovoltaic performance in bulk heterojunction solar cells.</abstract><cop>Weinheim</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/aenm.201500386</doi><tpages>13</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | blend morphology Dynamical systems Dynamics molecular solubility Morphology organic solar cells Photovoltaic cells recombination dynamics Solar cells Solubility Transport Transport buildings, stations and terminals transport limitations |
| title | Effects of Alkyl Terminal Chains on Morphology, Charge Generation, Transport, and Recombination Mechanisms in Solution-Processed Small Molecule Bulk Heterojunction Solar Cells |
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