CO2-laser treatment of indium tin oxide nanoparticle coatings on flexible polyethyleneterephthalate substrates

被引：15

作者：

Koeniger, Tobias ^{[1
]}

Rechtenwald, Thomas ^{[2
]}

Al-Naimi, Ihab ^{[1
]}

Frick, Thomas ^{[2
]}

Schmidt, Michael ^{[2
]}

Muenstedt, Helmut ^{[1
]}

机构：

[1] Inst Polymer Mat, D-91058 Erlangen, Germany

[2] Bayer Laserzentrum GmbH, D-91052 Erlangen, Germany

来源：

JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH | 2010年 / 7卷 / 02期

关键词：

Indium tin oxide (ITO); Nanoparticles; Laser treatment; Oscillatory bending tests; ELECTRICAL-PROPERTIES; CRYSTALLINE NANOPARTICLES; ITO COATINGS; FILMS; SOL;

D O I：

10.1007/s11998-009-9181-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A CO2-laser treatment was used to improve the electrical conductivity of coatings of indium tin oxide (ITO) nanoparticles on flexible polyethyleneterephthalate (PET) substrates. The electrical conductivity and the transparency of CO2-laser-treated ITO nanoparticle coatings were characterized with regard to the application as transparent electrodes. Furthermore, the stability of the electrical conductivity under oscillatory bending was investigated. A specific resistance of 0.12 Omega cm is obtained by CO2-laser treatment without thermally damaging the PET film. The improvement of the electrical conductivity can be explained by a slight sinter neck formation. For a film thickness of 3 mu m, a sheet resistance of 400 Omega/a- and a transmission in the visible range of 80% were achieved. The stability of the electrical conductivity of CO2-laser-treated ITO nanoparticle coatings under bending was investigated using a specially constructed device for the application of various oscillatory bending loads. For a bending radius of 10 mm, the sheet resistance does not exceed 1000 Omega/a- after 300 bending cycles. Compared to commercial sputtered ITO coatings, CO2-laser-treated ITO nanoparticle coatings show a significant higher stability under oscillatory bending.

引用

页码：261 / 269

页数：9

共 13 条

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