Importance of device structure and interlayer design in storage stability of naphthalene diimide-based all-polymer solar cells
DC Field | Value | Language |
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dc.contributor.author | Lee, Changyeon | - |
dc.contributor.author | Lee, Junbok | - |
dc.contributor.author | Lee, Seungjin | - |
dc.contributor.author | Lee, Wonho | - |
dc.contributor.author | You, Hoseon | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Kim, Bumjoon J. | - |
dc.date.accessioned | 2021-08-31T09:37:20Z | - |
dc.date.available | 2021-08-31T09:37:20Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-02-21 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/57613 | - |
dc.description.abstract | While excellent thermal and mechanical stabilities of all-polymer solar cells (all-PSC) have been demonstrated, the storage stability of all-PSCs has rarely been studied. In this paper, the storage stability of all-PSCs is systematically investigated and compared to fullerene-based polymer solar cells (PCBM-PSCs). We identify that the efficient inverted type all-PSCs made with a molybdenum oxide (MoO3) anode interfacial layer exhibit degradation over short periods of storage even under inert nitrogen-filled and dark conditions, while the control inverted PCBM-PSCs containing the same polymer donor are relatively more stable. To elucidate the origin of the poor storage stability, morphological and electrical properties of all-PSCs are investigated. We reveal that the work function of MoO3 is largely changed during the storage because of the interaction between MoO3 and the underneath naphthalene dimide (NDI)-based polymer acceptors (P(A)s). This causes unfavorable energy-level alignment in devices, resulting in increased charge recombination and deteriorated charge collecting efficiency. To resolve this issue, we propose two effective strategies: (i) introducing a passivation layer to physically separate the NDI-based P(A)s and MoO3, and (ii) replacing MoO3 with an efficient polymer interlayer. We prove that the modified all-PSCs not only exhibit excellent storage stability with high power conversion efficiency for more than 45 days, but also show high air-stability even without encapsulation. Our findings provide deeper understanding of the storage stability of all-PSCs and suggest future guidelines for efficient and burn-in free all-PSCs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | FULLERENE-POLYMER | - |
dc.subject | MOLECULAR-WEIGHT | - |
dc.subject | PERFORMANCE | - |
dc.subject | ACCEPTOR | - |
dc.subject | AGGREGATION | - |
dc.subject | DEGRADATION | - |
dc.subject | ABSORPTION | - |
dc.subject | MORPHOLOGY | - |
dc.subject | TRANSPORT | - |
dc.title | Importance of device structure and interlayer design in storage stability of naphthalene diimide-based all-polymer solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1039/c9ta14032h | - |
dc.identifier.scopusid | 2-s2.0-85079694026 | - |
dc.identifier.wosid | 000521346600019 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.7, pp.3735 - 3745 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 8 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 3735 | - |
dc.citation.endPage | 3745 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | FULLERENE-POLYMER | - |
dc.subject.keywordPlus | MOLECULAR-WEIGHT | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | TRANSPORT | - |
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