Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor

被引：27

作者：

Jeong, Seung Yol ^{[1
]}

Lim, Seong Chu ^{[1
]}

Bae, Dong Jae ^{[1
]}

Lee, Young Hee ^{[1
]}

Shin, Hyun Jin ^{[2
]}

Yoon, Seon-Mi ^{[2
]}

Choi, Jae Young ^{[2
]}

Cha, Ok Hwan ^{[3
]}

Jeong, Mun Seok ^{[3
]}

Perello, David ^{[4
]}

Yun, Minhee ^{[4
]}

机构：

[1] Sungkyunkwan Univ, Ctr Nanotubes & Nanostruct Composites, Phys Div BK21, Sungkyunkwan Adv Inst Nanotechnol, Suwon 440746, South Korea

[2] Samsung Adv Inst Technol, Mat Ctr, Suwon 440600, South Korea

[3] GIST, Adv Photon Res Inst, Kwangju 500712, South Korea

[4] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 24期

关键词：

D O I：

10.1063/1.2944813

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

CdSe nanocrystals (NCs) have been decorated on single-walled carbon nanotubes (SWCNTs) by combining a method of chemically modified substrate along with gate-bias control. CdSe/ZnS core/shell quantum dots were negatively charged by adding mercaptoacetic acid. The silicon oxide substrate was decorated by octadecyltrichlorosilane and converted to hydrophobic surface. The negatively charged CdSe NCs were adsorbed on the SWCNT surface by applying a negative gate bias. The measured photocurrent clearly demonstrates that CdSe NCs decorated SWCNT can be used for photodetector and solar cell that are operable over a wide range of wavelengths.

引用

页数：3

共 21 条

[1] In situ quantum dot growth on multiwalled carbon nanotubes [J].

Banerjee, S ;

Wong, SS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (34) :10342-10350

[2]

Bastard G., 1998, WAVE MECH APPL SEMIC

[3] Temperature- and field-dependent electron and hole mobilities in polymer light-emitting diodes [J].

Bozano, L ;

Carter, SA ;

Scott, JC ;

Malliaras, GG ;

Brock, PJ .

APPLIED PHYSICS LETTERS, 1999, 74 (08) :1132-1134

[4] Quantum dot bioconjugates for ultrasensitive nonisotopic detection [J].

Chan, WCW ;

Nie, SM .

SCIENCE, 1998, 281 (5385) :2016-2018

[5]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[6] (CdSe)ZnS core-shell quantum dots: Synthesis and characterization of a size series of highly luminescent nanocrystallites [J].

Dabbousi, BO ;

RodriguezViejo, J ;

Mikulec, FV ;

Heine, JR ;

Mattoussi, H ;

Ober, R ;

Jensen, KF ;

Bawendi, MG .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (46) :9463-9475

[7] ELECTRIC-FIELD-INDUCED PHOTOLUMINESCENCE QUENCHING IN THIN-FILM LIGHT-EMITTING-DIODES BASED ON POLY(PHENYL-P-PHENYLENE VINYLENE) [J].

DEUSSEN, M ;

SCHEIDLER, M ;

BASSLER, H .

SYNTHETIC METALS, 1995, 73 (02) :123-129

[8] Hydrophobic anchoring of monolayer-protected gold nanoclusters to carbon nanotubes [J].

Ellis, AV ;

Vjayamohanan, K ;

Goswaimi, R ;

Chakrapani, N ;

Ramanathan, LS ;

Ajayan, PM ;

Ramanath, G .

NANO LETTERS, 2003, 3 (03) :279-282

[9] Carbon nanotube quantum resistors [J].

Frank, S ;

Poncharal, P ;

Wang, ZL ;

de Heer, WA .

SCIENCE, 1998, 280 (5370) :1744-1746

[10] Photoconductivity in semiconducting single-walled carbon nanotubes [J].

Fujiwara, A ;

Matsuoka, Y ;

Suematsu, H ;

Ogawa, N ;

Miyano, K ;

Kataura, H ;

Maniwa, Y ;

Suzuki, S ;

Achiba, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (11B) :L1229-L1231

← 1 2 3 →