Enhanced electrical and dielectric properties of polymer covered silicon nanowire arrays

被引：17

作者：

Rasool, Kamran ^{[1
,2
]}

Rafiq, M. A. ^{[1
]}

Li, C. B. ^{[2
]}

Krali, E. ^{[2
]}

Durrani, Z. A. K. ^{[2
]}

Hasan, M. M. ^{[1
]}

机构：

[1] Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Micro & Nano Devices Grp, Islamabad, Pakistan

[2] Univ London Imperial Coll Sci Technol & Med, Dept Elect & Elect Engn, London SW7 2AZ, England

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 02期

关键词：

POLYACRYLIC-ACID; FABRICATION; SURFACES;

D O I：

10.1063/1.4735278

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate DC and AC electrical characteristics of similar to 40 mu m long p-type silicon nanowire (SiNW) arrays, prepared by metal assisted chemical etching and filled with polyacrylic acid (PAA). PAA diluted to different concentrations with deionized (DI) water is incorporated into the arrays in three steps, yielding polymer filling to the bottom of the arrays. DC and AC electrical measurements show that PAA reduces the array resistance. The AC conductivity increases up to similar to 1000 times, and the real part of the overall dielectric constant (epsilon') by similar to 100. We attribute these effects to the formation of acceptor-like states at nanowire/polymer interface. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4735278]

引用

页数：4

共 25 条

[1] Fabrication and characterization of a nanowire/polymer-based nanocomposite for a prototype thermoelectric device [J].