Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 염봉준 | - |
dc.date.accessioned | 2019-11-24T19:01:49Z | - |
dc.date.available | 2019-11-24T19:01:49Z | - |
dc.date.issued | 2017-04 | - |
dc.identifier.citation | ACS NANO, v. 11, no. 6, page. 5309-5317 | en_US |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.issn | 1936-086X | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsnano.7b00103 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/113867 | - |
dc.description.abstract | Fabrication of chiroptical materials with broadband response in the visible light region is vital to fully realize their potential applications. One way to achieve broadband chiroptical activity is to fabricate chiral nanostructures from materials that exhibit broadband absorption in the visible light region. However, the compounds used for chiroptical materials have predominantly been limited to materials with narrowband spectral response. Here, we synthesize Ag2S-based nanohelices derived from helical coordination polymers. The right- and left-handed coordination helices used as precursors are prepared from L- and D-glutathione with Ag+ and a small amount of Cu2+. The pyrolysis of the coordination helices yields right- and left-handed helices of Cu0.12Ag1.94S/C, which exhibit chiroptical activity spanning the entire visible light region. Finite element method simulations substantiate that the broadband chiroptical activity is attributed to synergistic broadband light absorption and light scattering. Furthermore, another series of Cu0.10Ag1.90S/C nanohelices are synthesized by choosing the or D-Glu-Cys as starting materials. The pitch length of nanohelicies is controlled by changing the peptides, which alters their chiroptical properties. The pyrolysis of coordination helices enables one to fabricate helical Ag2S-based materials that enable broadband chiroptical activity but have not been explored owing to the lack of synthetic routes. | en_US |
dc.description.sponsorship | This work was funded by a Grant-in-Aid for Young Scientists (B) KAKENHI 16K17875 to K.H. Partial support was also provided by ICHIJYU Industrial Science and Technology Promotion Foundation to K.H. and National Research Foundation of Korea (NRF) grant (No. NRF-2015R1D1A1A01058029) to B.Y. We thank Prof. Masako Kato and Dr. Atsushi Kobayashi for assistance with the use of powder XRD. We thank the open facility at Hokkaido University for the use of SEM, TEM, Raman spectroscopy, XPS, and CD. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | chiroptical materials | en_US |
dc.subject | coordination polymers | en_US |
dc.subject | metal-organic frameworks | en_US |
dc.subject | nanomaterials | en_US |
dc.subject | metal sulfides | en_US |
dc.title | Pyrolysis of Helical Coordination Polymers for Metal-Sulfide-Based Helices with Broadband Chiroptical Activity | en_US |
dc.type | Article | en_US |
dc.relation.no | 6 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1021/acsnano.7b00103 | - |
dc.relation.page | 5309-5317 | - |
dc.relation.journal | ACS NANO | - |
dc.contributor.googleauthor | Hirai, Kenji | - |
dc.contributor.googleauthor | Yeom, Bongjun | - |
dc.contributor.googleauthor | Sada, Kazuki | - |
dc.relation.code | 2017000564 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | byeom | - |
dc.identifier.orcid | http://orcid.org/0000-0001-8914-0947 | - |
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