Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes
Hot-injection synthesis of colloidal nanocrystals (NCs) in a substrate-bound form is demonstrated. We show that polycrystalline films submerged into hot organic solvents can nucleate the heteroepitaxial growth of semiconductor NCs, for which the ensuing lattice quality and size distribution are on t...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , , |
| التنسيق: | article |
| منشور في: |
2011
|
| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/6495 http://dx.doi.org/10.1021/nn201064n http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/nn201064n |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513480161230848 |
|---|---|
| author | Acharya, Krishna P. |
| author2 | Khon, Elena O'Conner, Timothy Nemitz, Ian Klinkova, Anna Khnayzer, Rony S. |
| author2_role | author author author author author |
| author_facet | Acharya, Krishna P. Khon, Elena O'Conner, Timothy Nemitz, Ian Klinkova, Anna Khnayzer, Rony S. |
| author_role | author |
| dc.creator.none.fl_str_mv | Acharya, Krishna P. Khon, Elena O'Conner, Timothy Nemitz, Ian Klinkova, Anna Khnayzer, Rony S. |
| dc.date.none.fl_str_mv | 2011 2017-11-03T09:39:53Z 2017-11-03T09:39:53Z 2017-11-03 |
| dc.identifier.none.fl_str_mv | 1936-086X http://hdl.handle.net/10725/6495 http://dx.doi.org/10.1021/nn201064n Acharya, K. P., Khon, E., O’Conner, T., Nemitz, I., Klinkova, A., Khnayzer, R. S., ... & Zamkov, M. (2011). Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes. ACS nano, 5(6), 4953-4964. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/nn201064n |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | ACS Nano |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Hot-injection synthesis of colloidal nanocrystals (NCs) in a substrate-bound form is demonstrated. We show that polycrystalline films submerged into hot organic solvents can nucleate the heteroepitaxial growth of semiconductor NCs, for which the ensuing lattice quality and size distribution are on the par with those of isolated colloidal nanoparticles. This strategy is demonstrated by growing lead chalcogenide NCs directly onto solvent-submerged TiO2 substrates. The resulting PbX/TiO2 (X = S, Se, Te) nanocomposites exhibit heteroepitaxial interfaces between lead chalcogenide and oxide domains and show an efficient separation of photoinduced charges, deployable for light-harvesting applications. The extendibility of the present method to other material systems was demonstrated through the synthesis of CdS/TiO2 and Cu2S/TiO2 heterostructures, fabricated from PbS/TiO2 composites via cation exchange. The photovoltaic performance of nanocrystal/substrate composites comprising PbS NCs was evaluated by incorporating PbS/TiO2 films into prototype solar cells. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_357cd1a14ea132aefd211e5c0c55ff9b |
| identifier_str_mv | 1936-086X Acharya, K. P., Khon, E., O’Conner, T., Nemitz, I., Klinkova, A., Khnayzer, R. S., ... & Zamkov, M. (2011). Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes. ACS nano, 5(6), 4953-4964. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/6495 |
| publishDate | 2011 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routesAcharya, Krishna P.Khon, ElenaO'Conner, TimothyNemitz, IanKlinkova, AnnaKhnayzer, Rony S.Hot-injection synthesis of colloidal nanocrystals (NCs) in a substrate-bound form is demonstrated. We show that polycrystalline films submerged into hot organic solvents can nucleate the heteroepitaxial growth of semiconductor NCs, for which the ensuing lattice quality and size distribution are on the par with those of isolated colloidal nanoparticles. This strategy is demonstrated by growing lead chalcogenide NCs directly onto solvent-submerged TiO2 substrates. The resulting PbX/TiO2 (X = S, Se, Te) nanocomposites exhibit heteroepitaxial interfaces between lead chalcogenide and oxide domains and show an efficient separation of photoinduced charges, deployable for light-harvesting applications. The extendibility of the present method to other material systems was demonstrated through the synthesis of CdS/TiO2 and Cu2S/TiO2 heterostructures, fabricated from PbS/TiO2 composites via cation exchange. The photovoltaic performance of nanocrystal/substrate composites comprising PbS NCs was evaluated by incorporating PbS/TiO2 films into prototype solar cells.PublishedN/A2017-11-03T09:39:53Z2017-11-03T09:39:53Z20112017-11-03Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1936-086Xhttp://hdl.handle.net/10725/6495http://dx.doi.org/10.1021/nn201064nAcharya, K. P., Khon, E., O’Conner, T., Nemitz, I., Klinkova, A., Khnayzer, R. S., ... & Zamkov, M. (2011). Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes. ACS nano, 5(6), 4953-4964.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttp://pubs.acs.org/doi/abs/10.1021/nn201064nenACS Nanoinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/64952021-03-19T10:03:26Z |
| spellingShingle | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes Acharya, Krishna P. |
| status_str | publishedVersion |
| title | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| title_full | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| title_fullStr | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| title_full_unstemmed | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| title_short | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| title_sort | Heteroepitaxial growth of colloidal nanocrystals onto substrate films via hot-injection routes |
| url | http://hdl.handle.net/10725/6495 http://dx.doi.org/10.1021/nn201064n http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/nn201064n |