A dual-functional asymmetric squaraine-based low band gap hole transporting material for efficient perovskite solar cells
DC Field | Value | Language |
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dc.contributor.author | Paek, Sanghyun | - |
dc.contributor.author | Rub, Malik Abdul | - |
dc.contributor.author | Choi, Hyeju | - |
dc.contributor.author | Kosa, Samia A. | - |
dc.contributor.author | Alamry, Khalid A. | - |
dc.contributor.author | Cho, Jin Woo | - |
dc.contributor.author | Gao, Peng | - |
dc.contributor.author | Ko, Jaejung | - |
dc.contributor.author | Asiri, Abdullah M. | - |
dc.contributor.author | Nazeeruddin, Mohammad Khaja | - |
dc.date.accessioned | 2021-09-04T05:29:45Z | - |
dc.date.available | 2021-09-04T05:29:45Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/90373 | - |
dc.description.abstract | We demonstrate for the first time an asymmetric squaraine-based low band-gap hole transporting material, which acted as both light harvesting and hole transporting layers in methylammonium lead triiodide perovskite solar cells. Opto-electrochemical characterization revealed extremely high molar extinction coefficients of the absorption bands in the low energy region and prominent space charge delocalization due to its electronically asymmetric nature. A suitable band alignment of the squaraine HOMO level with the valence band edge of the perovskite, and the conduction band of the TiO2 with LUMO of the perovskite allowed a cascade of hole extraction and electron injection, respectively. Red-shifted absorption was observed for both HTMs in thin films coated on the perovskite, and the optimized devices exhibited an impressive PCE of 14.7% under full sunlight illumination (100 mW cm(-2), AM1.5 G). The efficiency value is comparable to that of the devices using a state-of-the-art spiro-OMeTAD hole transport layer under similar conditions. Ambient stability after 300 h revealed that 88% of the initial efficiency remained for JK-216D, and almost no change for JK-217D, indicating that the devices had good long-term stability thus suggesting that the asymmetric squaraines have great potential as a dual-functional HTM for high performance perovskite solar cells. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HALIDE PEROVSKITES | - |
dc.subject | DYE | - |
dc.subject | PERFORMANCE | - |
dc.subject | IODIDE | - |
dc.subject | FILM | - |
dc.subject | SENSITIZATION | - |
dc.subject | ELECTRODES | - |
dc.subject | LAYERS | - |
dc.title | A dual-functional asymmetric squaraine-based low band gap hole transporting material for efficient perovskite solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ko, Jaejung | - |
dc.identifier.doi | 10.1039/c5nr05697g | - |
dc.identifier.scopusid | 2-s2.0-84962216771 | - |
dc.identifier.wosid | 000372851500016 | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.8, no.12, pp.6335 - 6340 | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 8 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 6335 | - |
dc.citation.endPage | 6340 | - |
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 | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | HALIDE PEROVSKITES | - |
dc.subject.keywordPlus | DYE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | IODIDE | - |
dc.subject.keywordPlus | FILM | - |
dc.subject.keywordPlus | SENSITIZATION | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | LAYERS | - |
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