Ultrafast Saturable Absorption of Two-Dimensional MoS2 Nanosheets
文献类型：期刊论文
| 作者 | Wang, Kangpeng; Wang, Jun; Fan, Jintai; Lotya, Mustafa; O'Neill, Arlene; Fox, Daniel; Feng, Yanyan; Zhang, Xiaoyan; Jiang, Benxue; Zhao, Quanzhong |
| 刊名 | acs nano
 |
| 出版日期 | 2013 |
| 卷号 | 7期号:10页码:9260 |
| 通讯作者 | wang, j (reprint author), acad sinica, shanghai inst opt & fine mech, key lab mat high power laser, shanghai 201800, peoples r china. |
| 英文摘要 | employing high-yield production of layered materials by liquid-phase exfoliation, molybdenum disulfide (mos2) dispersions with large populations of single and few layers were prepared. electron microscopy verified the high quality of the two-dimensional mos2 nanostructures. atomic force microscopy analysis revealed that similar to 39% of the mos2 flakes had thicknesses of less than 5 nm. linewidth and frequency difference of the e-2g(1) and a(1g) raman modes confirmed the effective reduction of flake thicknesses from the bulk mos2 to the dispersions. ultrafast nonlinear optical (nlo) properties were investigated using an open-aperture z-scan technique. all experiments were performed using 100 fs pulses at 800 nm from a mode-locked ti:sapphire laser. the mos2 nanosheets exhibited significant saturable absorption (sa) for the femtosecond pulses, resulting in the third-order nlo susceptibility im chi((3)) similar to 10(-15) esu, figure of merit similar to 10(-15) esu cm, and free-carrier absorption cross section similar to 10(-17) cm(2). induced free carrier density and the relaxation time were estimated to be similar to 10(16) cm(-3) and similar to 30 fs, respectively. at the same excitation condition, the mos2 dispersions show better sa response than the graphene dispersions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 版本 | 出版稿 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/14602]  |
| 专题 | 上海光学精密机械研究所_中科院强激光材料重点实验室 |
| 作者单位 | 1.[Wang, Kangpeng 2.Wang, Jun 3.Fan, Jintai 4.Feng, Yanyan 5.Zhang, Xiaoyan 6.Jiang, Benxue 7.Zhang, Long 8.Blau, Werner Josef] Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China 9.[Lotya, Mustafa 10.O'Neill, Arlene |
| 推荐引用方式 GB/T 7714 | Wang, Kangpeng,Wang, Jun,Fan, Jintai,et al. Ultrafast Saturable Absorption of Two-Dimensional MoS2 Nanosheets[J]. acs nano,2013,7(10):9260. |
| APA | Wang, Kangpeng.,Wang, Jun.,Fan, Jintai.,Lotya, Mustafa.,O'Neill, Arlene.,...&Blau, Werner Josef.(2013).Ultrafast Saturable Absorption of Two-Dimensional MoS2 Nanosheets.acs nano,7(10),9260. |
| MLA | Wang, Kangpeng,et al."Ultrafast Saturable Absorption of Two-Dimensional MoS2 Nanosheets".acs nano 7.10(2013):9260. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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