Photoconductivity of single-walled carbon nanotubes

被引：0
|
作者：
Fujiwara, A [1 ]
Matsuoka, Y [1 ]
Suematsu, H [1 ]
Ogawa, N [1 ]
Miyano, K [1 ]
Kataura, H [1 ]
Maniwa, Y [1 ]
Suzuki, S [1 ]
Achiba, Y [1 ]
机构：
[1] Univ Tokyo, Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
来源：
NANONETWORK MATERIALS: FULLERENES, NANOTUBES AND RELATED SYSTEMS | 2001年 / 590卷
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D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have investigated photoconducting properties of mat samples of single-walled carbon nanotubes (SWNTs) in order to clarify the mechanism of photoconductivity. Two peaks are observed in photoconductivity spectra around 0.7 and 1.2 eV for both samples of SWNTs synthesized by are discharge and laser ablation methods, which can be interpreted as the photocurrent in the semiconductor phase of nanotubes. No threshold in applied voltage is observed for the occurrence of photoconductivity. Results show that the photoconductivity is an intrinsic feature of SWNTs and that junction areas do not play an important role on photoconductivity.
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页码：189 / 192
页数：4
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