68


nanotimes News in Brief


11-06/07 :: June/July 2011


Nanowires and Nanotubes // Arrays of Indefinitely long Uniform Nanowires and Nanotubes


© Text: Abstract, Nature Materials © Images: Bilkent University, Turkey / Mehmet Bayindir


R


esearchers at Bilkent University, Turkey, present in Nature Materials arrays of indefinitely long


uniform nanowires and nanotubes. They report a new thermal size-reduction process to produce well- ordered, globally oriented, indefinitely long nanowire and nanotube arrays with different materials.


The new technique involves iterative co-drawing of hermetically sealed multimaterials in compatible polymer matrices similar to fibre drawing. Global- ly oriented, endlessly parallel, axially and radially uniform semiconducting and piezoelectric nanowire and nanotube arrays hundreds of metres long, with nanowire diameters less than 15nm, are obtained.


The resulting nanostructures are sealed inside a flexi- ble substrate, facilitating the handling of and electri- cal contacting to the nanowires. Inexpensive, high- throughput, multimaterial nanowire arrays pave the way for applications including nanowire-based large- area flexible sensor platforms, phase-changememory, nanostructure-enhanced photovoltaics, semiconduc- tor nanophotonics, dielectric metamaterials,linear and nonlinear photonics and nanowire-enabled high- performance composites.


Mecit Yaman, Tural Khudiyev, Erol Ozgur, Mehmet Ka- nik, Ozan Aktas, Ekin O. Ozgur, Hakan Deniz, Enes Kor- kut & Mehmet Bayindir: Arrays of indefinitely long uni- form nanowires and nanotubes, In: Nature Materials, Vol. 10(2011), No. 7, July 2011, Pages 494-501, DOI:10.1038/ nmat3038:


http://dx.doi.org/10.1038/nmat3038


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111