DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Jihye | ko |
dc.contributor.author | Lee, Wonho | ko |
dc.contributor.author | Lee, Changyeon | ko |
dc.contributor.author | Ahn, Hyungju | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.date.accessioned | 2016-10-04T07:20:46Z | - |
dc.date.available | 2016-10-04T07:20:46Z | - |
dc.date.created | 2016-07-20 | - |
dc.date.created | 2016-07-20 | - |
dc.date.created | 2016-07-20 | - |
dc.date.issued | 2016-08 | - |
dc.identifier.citation | ADVANCED ENERGY MATERIALS, v.6, no.15, pp.1600504 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | http://hdl.handle.net/10203/213086 | - |
dc.description.abstract | Molecular orientation, with respect to donor/acceptor interface and electrodes, plays a critical role in determining the performance of all-polymer solar cells (all-PSCs), but is often difficult to rationally control. Here, an effective approach for tuning the molecular crystallinity and orientation of naphthalenediimide-bithiophene-based n-type polymers (P(NDI2HD-T2)) by controlling their number average molecular weights (M-n) is reported. A series of P(NDI2HD-T2) polymers with different M-n of 13.6 (PL), 22.9 (PM), and 49.9 kg mol(-1) (PH) are prepared by changing the amount of end-capping agent (2-bromothiophene) during polymerization. Increasing the M-n values of P(NDI2HD-T2) polymers leads to a remarkable shift of dominant lamellar crystallite textures from edge-on (PL) to face-on (PH) as well as more than a twofold increase in the crystallinity. For example, the portion of face-on oriented crystallites is dramatically increased from 21.5% and 46.1%, to 78.6% for PL, PM, and PH polymers. These different packing structures in terms of the molecular orientation greatly affect the charge dissociation efficiency at the donor/acceptor interface and thus the short-circuit current density of the all-PSCs. All-PSCs with PTB7-Th as electron donor and PH as electron acceptor show the highest efficiency of 6.14%, outperforming those with PM (5.08%) and PL (4.29%). | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Controlling Molecular Orientation of Naphthalenediimide-Based Polymer Acceptors for High Performance All-Polymer Solar Cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000381695700007 | - |
dc.identifier.scopusid | 2-s2.0-84973618658 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 15 | - |
dc.citation.beginningpage | 1600504 | - |
dc.citation.publicationname | ADVANCED ENERGY MATERIALS | - |
dc.identifier.doi | 10.1002/aenm.201600504 | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.contributor.nonIdAuthor | Jung, Jihye | - |
dc.contributor.nonIdAuthor | Ahn, Hyungju | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | DIIMIDE BITHIOPHENE COPOLYMERS | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | CHARGE-TRANSPORT | - |
dc.subject.keywordPlus | PHOTOVOLTAIC PERFORMANCE | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | SEMICONDUCTING POLYMER | - |
dc.subject.keywordPlus | CARRIER GENERATION | - |
dc.subject.keywordPlus | STRUCTURAL ORDER | - |
dc.subject.keywordPlus | BLEND MORPHOLOGY | - |
dc.subject.keywordPlus | MOBILITY | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.