Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Younghoon | ko |
dc.contributor.author | Che, Fanglin | ko |
dc.contributor.author | Jo, Jea Woong | ko |
dc.contributor.author | Choi, Jongmin | ko |
dc.contributor.author | de Arquer, F. Pelayo Garcia | ko |
dc.contributor.author | Voznyy, Oleksandr | ko |
dc.contributor.author | Sun, Bin | ko |
dc.contributor.author | Kim, Junghwan | ko |
dc.contributor.author | Choi, Min-Jae | ko |
dc.contributor.author | Quintero-Bermudez, Rafael | ko |
dc.contributor.author | Fan, Fengjia | ko |
dc.contributor.author | Tan, Chih Shan | ko |
dc.contributor.author | Bladt, Eva | ko |
dc.contributor.author | Walters, Grant | ko |
dc.contributor.author | Proppe, Andrew H. | ko |
dc.contributor.author | Zou, Chengqin | ko |
dc.contributor.author | Yuan, Haifeng | ko |
dc.contributor.author | Bals, Sara | ko |
dc.contributor.author | Hofkens, Johan | ko |
dc.contributor.author | Roeffaers, Maarten B. J. | ko |
dc.contributor.author | Hoogland, Sjoerd | ko |
dc.contributor.author | Sargent, Edward H. | ko |
dc.date.accessioned | 2019-07-19T01:34:12Z | - |
dc.date.available | 2019-07-19T01:34:12Z | - |
dc.date.created | 2019-03-28 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | Advanced Materials, v.31, no.17 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/10252 | - |
dc.description.abstract | Colloidal nanocrystals combine size- and facet-dependent properties with solution processing. They offer thus a compelling suite of materials for technological applications. Their size- and facet-tunable features are studied in synthesis; however, to exploit their features in optoelectronic devices, it will be essential to translate control over size and facets from the colloid all the way to the film. Larger-diameter colloidal quantum dots (CQDs) offer the attractive possibility of harvesting infrared (IR) solar energy beyond absorption of silicon photovoltaics. These CQDs exhibit facets (nonpolar (100)) undisplayed in small-diameter CQDs; and the materials chemistry of smaller nanocrystals fails consequently to translate to materials for the short-wavelength IR regime. A new colloidal management strategy targeting the passivation of both (100) and (111) facets is demonstrated using distinct choices of cations and anions. The approach leads to narrow-bandgap CQDs with impressive colloidal stability and photoluminescence quantum yield. Photophysical studies confirm a reduction both in Stokes shift (≈47 meV) and Urbach tail (≈29 meV). This approach provides a ≈50% increase in the power conversion efficiency of IR photovoltaics compared to controls, and a ≈70% external quantum efficiency at their excitonic peak. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | - |
dc.language | English | - |
dc.publisher | Wiley-VCH Verlag | - |
dc.title | A Facet-Specific Quantum Dot Passivation Strategy for Colloid Management and Efficient Infrared Photovoltaics | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/adma.201805580 | - |
dc.identifier.wosid | 000465600000001 | - |
dc.identifier.scopusid | 2-s2.0-85062789296 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Che, Fanglin | - |
dc.contributor.nonIdAuthor | Jo, Jea Woong | - |
dc.contributor.nonIdAuthor | de Arquer, F. Pelayo Garcia | - |
dc.contributor.nonIdAuthor | Voznyy, Oleksandr | - |
dc.contributor.nonIdAuthor | Sun, Bin | - |
dc.contributor.nonIdAuthor | Kim, Junghwan | - |
dc.contributor.nonIdAuthor | Choi, Min-Jae | - |
dc.contributor.nonIdAuthor | Quintero-Bermudez, Rafael | - |
dc.contributor.nonIdAuthor | Fan, Fengjia | - |
dc.contributor.nonIdAuthor | Tan, Chih Shan | - |
dc.contributor.nonIdAuthor | Bladt, Eva | - |
dc.contributor.nonIdAuthor | Walters, Grant | - |
dc.contributor.nonIdAuthor | Proppe, Andrew H. | - |
dc.contributor.nonIdAuthor | Zou, Chengqin | - |
dc.contributor.nonIdAuthor | Yuan, Haifeng | - |
dc.contributor.nonIdAuthor | Bals, Sara | - |
dc.contributor.nonIdAuthor | Hofkens, Johan | - |
dc.contributor.nonIdAuthor | Roeffaers, Maarten B. J. | - |
dc.contributor.nonIdAuthor | Hoogland, Sjoerd | - |
dc.contributor.nonIdAuthor | Sargent, Edward H. | - |
dc.identifier.citationVolume | 31 | - |
dc.identifier.citationNumber | 17 | - |
dc.identifier.citationTitle | Advanced Materials | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | colloidal quantum dots | - |
dc.subject.keywordAuthor | facet-specific passivation | - |
dc.subject.keywordAuthor | infrared solar cells | - |
dc.subject.keywordAuthor | narrow bandgap | - |
dc.subject.keywordAuthor | sodium acetate | - |
dc.subject.keywordPlus | Energy gap | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Optoelectronic devices | - |
dc.subject.keywordPlus | Passivation | - |
dc.subject.keywordPlus | Semiconductor quantum dots | - |
dc.subject.keywordPlus | Sodium compounds | - |
dc.subject.keywordPlus | Solar energy | - |
dc.subject.keywordPlus | Solar power generation | - |
dc.subject.keywordPlus | Sols | - |
dc.subject.keywordPlus | Colloidal nanocrystals | - |
dc.subject.keywordPlus | Colloidal quantum dots | - |
dc.subject.keywordPlus | External quantum efficiency | - |
dc.subject.keywordPlus | Narrow band gap | - |
dc.subject.keywordPlus | Photoluminescence quantum yields | - |
dc.subject.keywordPlus | Power conversion efficiencies | - |
dc.subject.keywordPlus | Sodium acetate | - |
dc.subject.keywordPlus | Technological applications | - |
dc.subject.keywordPlus | Quantum efficiency | - |
dc.contributor.affiliatedAuthor | Kim, Younghoon | - |
dc.contributor.affiliatedAuthor | Choi, Jongmin | - |
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