| Title | Carbon nanotube arrays based high-performance infrared photodetector [Invited] |
| Authors | Zeng, Qingsheng Wang, Sheng Yang, Leijing Wang, Zhenxing Pei, Tian Zhang, Zhiyong Peng, Lian-Mao Zhou, Weiwei Liu, Jie Zhou, Weiya Xie, Sishen |
| Affiliation | Peking Univ, Dept Elect, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China. Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China. Duke Univ, Dept Chem, Durham, NC 27708 USA. Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| Keywords | ALIGNED ARRAYS BIPOLAR DIODE DENSITY QUARTZ |
| Issue Date | 2012 |
| Publisher | optical materials express |
| Citation | OPTICAL MATERIALS EXPRESS.2012,2,(6),839-848. |
| Abstract | The carbon nanotubes (CNTs) are an ideal material for infrared applications due to its excellent electronic and optoelectronic properties, suitable bandgap, mechanical and chemical stabilities. In this paper, we demonstrate a photovoltaic infrared detector which is based on aligned single-walled CNT (SWCNT) arrays. The device is fabricated by asymmetrically contacting the two ends of the SWCNT arrays with Pd and Sc of different work functions, which are known to form ohmic contacts with the valence and conduction bands of semiconducting SWCNTs respectively. The device is characterized at room temperature, exhibiting excellent diode characteristics, high responsivity of 9.87 x 10(-5) A/W and infrared spectral detectivity of 1.09 x 10(7) cmHz(1/2)/W. The demonstration of the SWCNT arrays based infrared detector which is fabricated using a doping-free process paves the way to applications of CNT in such field as high-performance infrared sensors. (C)2012 Optical Society of America |
| URI | http://hdl.handle.net/20.500.11897/291837 |
| ISSN | 2159-3930 |
| DOI | 10.1364/OME.2.000839 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 信息科学技术学院 前沿交叉学科研究院 纳米器件物理与化学教育部重点实验室 |
