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http://hdl.handle.net/2289/5620Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Anand, Benoy | - |
| dc.contributor.author | Kaniyoor, Adarsh | - |
| dc.contributor.author | Sai, Siva Sankara S. | - |
| dc.contributor.author | Philip, Reji | - |
| dc.contributor.author | Ramaprabhu, Sundara | - |
| dc.date.accessioned | 2013-06-19T10:33:43Z | - |
| dc.date.available | 2013-06-19T10:33:43Z | - |
| dc.date.issued | 2013-04-21 | - |
| dc.identifier.citation | Journal of Materials Chemistry C, Vol 1, P 2273-2780 | en |
| dc.identifier.issn | 2050-7534 (Online) | - |
| dc.identifier.issn | 2050-7526 | - |
| dc.identifier.uri | http://hdl.handle.net/2289/5620 | - |
| dc.description | Restricted Access. | en |
| dc.description.abstract | We present the mechanism and performance of optical limiting (OL) in hydrogen exfoliated graphene (HEG), functionalized HEG (f-HEG) and its metal hybrids. At the wavelengths used, the mechanism of nonlinear absorption (NLA) involves two-photon absorption and excited state absorption in the nanosecond excitation regime, and saturable absorption in combination with two-photon absorption in the femtosecond (ultrafast) excitation regime. The role of defects in the OL performance of HEG and f-HEG is investigated with the help of their Raman spectra. OL efficiency of f-HEG is found to improve with Pt and Pd nanoparticle decoration due to an enhanced NLA, which arises mainly from interband transitions between the d band and the s–p conduction band in the metal NPs, and charge transfer between f-HEG and metal NPs. Thermally induced light scattering is negligible in these water dispersed systems. | en |
| dc.language.iso | en | en |
| dc.publisher | Royal Society of Chemistry | en |
| dc.relation.uri | http://dx.doi.org/10.1039/C3TC00927K | en |
| dc.rights | 2013 Royal Society of Chemistry | en |
| dc.title | Enhanced optical limiting in functionalized hydrogen exfoliated graphene and its metal hybrids | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (LAMP) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2013_JoMatChemC_2773.pdf Restricted Access | Restricted Access | 754.47 kB | Adobe PDF | View/Open Request a copy |
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