Ultrafast Photocurrent Measurement of the Escape Time of Electrons and Holes from Carbon Nanotube p-i-n Photodiodes

被引：41

作者：

Gabor, Nathaniel M. ^{[1
]}

Zhong, Zhaohui ^{[2
]}

Bosnick, Ken ^{[3
]}

McEuen, Paul L. ^{[1
,4
]}

机构：

[1] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA

[2] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[3] Natl Res Council Canada, Natl Inst Nanotechnol, Edmonton, AB T6G 2M9, Canada

[4] MIT, Kavli Inst Cornell Nanoscale Sci, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 08期

关键词：

MULTIPLE EXCITON GENERATION; PHONON-SCATTERING; TRANSISTORS; TRANSPORT;

D O I：

10.1103/PhysRevLett.108.087404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultrafast photocurrent measurements are performed on individual carbon nanotube p-i-n photodiodes. The photocurrent response to subpicosecond pulses separated by a variable time delay Delta t shows strong photocurrent suppression when two pulses overlap (Delta t = 0). The picosecond-scale decay time of photocurrent suppression scales inversely with the applied bias V-SD, and is twice as long for photon energy above the second subband E-22 as compared to lower energy. The observed photocurrent behavior is well described by an escape time model that accounts for carrier effective mass.

引用

页数：5

共 27 条

[1] Carbon-based electronics [J].

Avouris, Phaedon ;

Chen, Zhihong ;

Perebeinos, Vasili .

NATURE NANOTECHNOLOGY, 2007, 2 (10) :605-615

[2] Can Impact Excitation Explain Efficient Carrier Multiplication in Carbon Nanotube Photodiodes? [J].

Baer, Roi ;

Rabani, Eran .

NANO LETTERS, 2010, 10 (09) :3277-3282

[3]

Berger S, 2007, NANO LETT, V7, P398, DOI 10.1021/n1062609p

[4] Transport in carbon nanotube p-i-n diodes [J].

Bosnick, Ken ;

Gabor, Nathan ;

McEuen, Paul .

APPLIED PHYSICS LETTERS, 2006, 89 (16)

[5] Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots [J].

Ellingson, RJ ;

Beard, MC ;

Johnson, JC ;

Yu, PR ;

Micic, OI ;

Nozik, AJ ;

Shabaev, A ;

Efros, AL .

NANO LETTERS, 2005, 5 (05) :865-871

[6] Photoconductivity of single carbon nanotubes [J].

Freitag, M ;

Martin, Y ;

Misewich, JA ;

Martel, R ;

Avouris, PH .

NANO LETTERS, 2003, 3 (08) :1067-1071

[7] Extremely Efficient Multiple Electron-Hole Pair Generation in Carbon Nanotube Photodiodes [J].

Gabor, Nathaniel M. ;

Zhong, Zhaohui ;

Bosnick, Ken ;

Park, Jiwoong ;

McEuen, Paul L. .

SCIENCE, 2009, 325 (5946) :1367-1371

[8] Exponential decay lifetimes of excitons in individual single-walled carbon nanotubes [J].

Hagen, A ;

Steiner, M ;

Raschke, MB ;

Lienau, C ;

Hertel, T ;

Qian, HH ;

Meixner, AJ ;

Hartschuh, A .

PHYSICAL REVIEW LETTERS, 2005, 95 (19)

[9] Quantized bimolecular Auger recombination of excitons in single-walled carbon nanotubes [J].

Huang, LB ;

Krauss, TD .

PHYSICAL REVIEW LETTERS, 2006, 96 (05)

[10] High-field quasiballistic transport in short carbon nanotubes [J].

Javey, A ;

Guo, J ;

Paulsson, M ;

Wang, Q ;

Mann, D ;

Lundstrom, M ;

Dai, HJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (10) :106804-1

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