Large Area alpha-Cu2S Particle-Stacked Nanorod Arrays by Laser Ablation in Liquid and Their Strong Structurally Enhanced and Stable Visible Photoelectric Performances | |
Bao, Haoming1,2; Zhang, Hongwen1; Zhou, Le1,2; Liu, Guangqiang1,2; Li, Yue1; Cai, Weiping1,2 | |
刊名 | ACS APPLIED MATERIALS & INTERFACES |
2018-06-06 | |
卷号 | 10期号:22页码:19027-19036 |
关键词 | alpha-Cu2S nanoparticle-stacked nanorod arrays laser ablation in liquid particle-deposition and oriented connection growth visible photocatalytic activity structurally enhanced visible photoelectric performances carrier generation and separation |
ISSN号 | 1944-8244 |
DOI | 10.1021/acsami.8b03520 |
英文摘要 | A flexible route is developed for fabrication of large area alpha-Cu2S nanorod arrays (NRAs) on the basis of one-step laser ablation of a copper foil in CS2 liquid. It has been demonstrated that the obtained products are the high temperature phase alpha-Cu2S and consist of the nanorods vertically standing on the Cu foil, exhibiting the array. The nanorods were about 1 mu m in length and around 100 nm in thickness and built by stacking the nearly spherical and < 110 > oriented nanoparticles (NPs) up. Such array can be peeled off from the foil and remain freestanding. Further, it has been found that the ablation duration, the laser power, and the foil surface state are crucial to the formation of the Cu2S NRA. The formation of such oriented NP-stacked Cu2S NRAs is attributed to the laser-induced generation of alpha-Cu2S NPs and the NPs' deposition/oriented connection growth on the surface-vulcanized copper foil. Importantly, the visible photocurrent response of the alpha-Cu2S NRAs is 8 times higher than that of the Cu2S NPs' film with the equivalent thickness and also larger than that of previously reported Cu2S, showing significantly enhanced photoelectric performances. As an application, such NRAs have exhibited markedly enhanced visible photocatalytic activity and highly stable recycling performances, compared with the alpha-Cu2S NPs. Further studies have revealed that the enhanced performances are attributed to the structurally enhanced light trapping effect of the NRAs as well as short and smooth carrier diffusion path in the oriented NP-stacked nanorods. This work provides a new and simple method for fabrication of the large area Cu2S NRAs with high and stable photoelectric performances. |
资助项目 | Natural Science Foundation of China[51771182] ; Natural Science Foundation of China[51531006] ; Natural Science Foundation of China[11574313] ; CAS/SAF International Partnership Program for Creative Research Teams ; National Key Research and Development Program of China Fundamental Research on nanosensing materials and high performance sensors focused on pollutants detection[2017YFA0207101] |
WOS关键词 | CU2S NANOWIRE ARRAYS ; HETEROJUNCTION PHOTOCATALYST ; ORIENTED ATTACHMENT ; SOLAR-CELLS ; NANOPARTICLES ; GROWTH ; COPPER ; NANOSTRUCTURES ; DEGRADATION ; FILMS |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000434895500067 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/38386] |
专题 | 合肥物质科学研究院_中科院固体物理研究所 |
通讯作者 | Zhang, Hongwen; Cai, Weiping |
作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
推荐引用方式 GB/T 7714 | Bao, Haoming,Zhang, Hongwen,Zhou, Le,et al. Large Area alpha-Cu2S Particle-Stacked Nanorod Arrays by Laser Ablation in Liquid and Their Strong Structurally Enhanced and Stable Visible Photoelectric Performances[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(22):19027-19036. |
APA | Bao, Haoming,Zhang, Hongwen,Zhou, Le,Liu, Guangqiang,Li, Yue,&Cai, Weiping.(2018).Large Area alpha-Cu2S Particle-Stacked Nanorod Arrays by Laser Ablation in Liquid and Their Strong Structurally Enhanced and Stable Visible Photoelectric Performances.ACS APPLIED MATERIALS & INTERFACES,10(22),19027-19036. |
MLA | Bao, Haoming,et al."Large Area alpha-Cu2S Particle-Stacked Nanorod Arrays by Laser Ablation in Liquid and Their Strong Structurally Enhanced and Stable Visible Photoelectric Performances".ACS APPLIED MATERIALS & INTERFACES 10.22(2018):19027-19036. |
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