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An attractive class of materials for photo(electro)chemical reactions are hybrids based on semiconducting metal oxides and nanocarbons (e.g. carbon nanotubes (CNT), graphene), where the nanocarbon acts as a highly-stable conductive scaffold…

Downsizing well-established materials to the nanoscale is a key route to novel functionalities, in particular if different functionalities are merged in hybrid nanomaterials. Hybrid carbon-based hierarchical nanostructures are particularly…

We investigate the relationship between photoluminescence (PL) intensity and environmental sensitivity of surfactant-wrapped single walled carbon nanotubes (SWNTs). SWNTs were studied under a variety of conditions in suspension as well as…

介观与纳米尺度物理 · 物理学 2011-09-01 Juan G. Duque , Gautam Gupta , Laurent Cognet , Brahim Lounis , Stephen K. Doorn , Andrew M. Dattelbaum

The ultra-low intershell shear strength in carbon nanotubes (CNTs) has been the primary obstacle to applications of CNTs as mechanical reinforcements. In this paper we propose a new CNT-system composed of comprising of coaxial cylindrical…

材料科学 · 物理学 2009-03-12 Zhiping Xu , Lifeng Wang , Quanshui Zheng

We report high luminance organic light-emitting diodes by use of acid functionalized multi-walled carbon nanotube (o-MWCNTs) as efficient hole injector electrodes with a simple and solution processable device structure. At only 10 V, the…

材料科学 · 物理学 2014-01-20 Shengwei Shi , S. Ravi P. Silva

We develop a general approach to calculations of the electron spectrum of metallic multi-wall carbon nanotubes (MWNT) with arbitrary number of coaxial layers. It is based on the model with singular attractive potential of equidistant…

介观与纳米尺度物理 · 物理学 2019-08-17 A. A. Abrikosov, , D. V. Livanov , A. A. Varlamov

The conductivity of carbon nanotube (CNT) networks can be improved markedly by doping with nitric acid. In the present work, CNTs and junctions of CNTs functionalized with NO$_3$ molecules are investigated to understand the microscopic…

应用物理 · 物理学 2018-03-21 T. Ketolainen , V. Havu , E. Ö. Jónsson , M. J. Puska

In this work, we report optical and photovoltaic properties of ZnO based solid polymeric photoelectrochemical (PEC) cell. In this device construction, film of ZnO nanoparticle (NP) has been sandwiched between ITO and LiClO4-PEO solid…

材料科学 · 物理学 2011-05-10 Manoranjan Ghosh , Mima Kurian , P. Veerender , N. Padma , D. K. Aswal , S. K. Gupta , J. V. Yakhmi

Multiwalled carbon nanotubes (MWCNTs) are decorated with Pt nanoparticles by a "layer-by-layer" approach using poly (sodium 4-styrene sulfonate) (PSS) and poly (diallyl dimethylammonium chloride) (PDDA). Transmission electron microscopy…

材料科学 · 物理学 2022-03-15 Samaneh Nasiri , Feng Shi , Guang Yang , Erdmann Spiecker , Qianqian Li

The photovoltaic properties of carbon nanotube/Si heterojunction solar cells were investigated using network films of high quality single-walled carbon nanotubes (SWNTs) grown by atmospheric-pressure floating-catalyst chemical vapor…

We study quantum optical properties of the single-walled carbon nanotube (SWCNT) by introducing the effective interaction between the quantized electromagnetic field and the confined electrons in the SWCNT. Our purpose is to explore the…

介观与纳米尺度物理 · 物理学 2009-04-30 Z. L. Guo , Z. R. Gong , C. P. Sun

Large area graphene sheets grown by chemical vapor deposition can potentially be employed as a transparent electrode in photovoltaics if their sheet resistance can be significantly lowered, without any loss in transparency. Here, we report…

材料科学 · 物理学 2015-12-16 Ahmed A. Maarouf , Amal Kasry , Bhupesh Chandra , Glenn J. Martyna

Photoconductivity of single-crystalline selenium nanotubes (SCSNT) under a range of illumination intensities of a 633nm laser is carried out with a novel two terminal device arrangement at room temperature. It's found that SCSNT forms…

材料科学 · 物理学 2008-06-18 Peng Liu , Yurong Ma , Weiwei Cai , Zhenzhong Wang , Limin Qi , Dongmin Chen

Light emission from nanostructures exhibits rich quantum effects and has broad applications. Single-walled carbon nanotubes (SWNTs) are one-dimensional (1D) metals or semiconductors, in which large number of electronic states in a narrow…

介观与纳米尺度物理 · 物理学 2007-05-23 David Mann , Y. K. Kato , Anika Kinkhabwala , Eric Pop , Jien Cao , Xinran Wang , Li Zhang , Qian Wang , Jing Guo , Hongjie Dai

The controlled covalent functionalization of semiconducting single-walled carbon nanotubes (SWCNTs) with luminescent sp$^{3}$ defects leads to additional narrow and tunable photoluminescence features in the near-infrared and even enables…

应用物理 · 物理学 2021-08-29 Nicolas F. Zorn , Felix J. Berger , Jana Zaumseil

High performance p- and n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) are obtained by using high and low work function metals, Pd and Al as source/drain (S/D) electrodes respectively. Ohmic contacts made to…

介观与纳米尺度物理 · 物理学 2007-05-23 Ali Javey , Qian Wang , Woong Kim , Hongjie Dai

The device of electric double-layer transistor (EDLT) with ionic liquid has been employed as an effective way to dope carriers over a wide range, which can induce metallic state, magnetic reconstruction and superconducting transition.…

超导电性 · 物理学 2018-08-30 Shuai Zhang , Moran Gao , Huanyan Fu , Xinmin Wang , Zhian Ren , Genfu Chen

In this work, tin oxide (SnO2)/multi-walled carbon nanotube (MWCNT) composite based ethanol sensor that exhibits fast response/recovery behaviour, large sensitivity, and good selectivity was demonstrated. First, Pd doped SnO2 (SnO2-Pd)…

应用物理 · 物理学 2019-06-10 Cihat Tasaltin

We report fabrication of an optically active, bio-electronic device based on thin film of purple membrane and single walled carbon nanotubes (SWNT). Two dimensional (2D) crystals of photoactive bacteriorhodopsin forms the optical center of…

应用物理 · 物理学 2017-04-24 Vikram Bakaraju , E. Senthil Prasad , Harsh Chaturvedi

The functionalization of single-walled carbon nanotubes (SWCNTs) with luminescent sp$^{3}$ defects has greatly improved their performance in applications such as quantum light sources and bioimaging. Here, we report the covalent…