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Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy.

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy.
นักวิจัย : Li, Mingjie , Wu, Bo , Ekahana, Sandy Adhitia , Utama, Muhammad Iqbal Bakti , Xing, Guichuan , Xiong, Qihua , Sum, Tze Chien , Zhang, Xinhai
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Li, M., Wu, B., Ekahana, S. A., Utama, M. I. B., Xing, G., Xiong, Q., et al. (2012). Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy. Applied Physics Letters, 101(9). , 0003-6951 , http://hdl.handle.net/10220/9223 , http://dx.doi.org/10.1063/1.4748300
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Applied Physics Letters
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Ultrafast optical-pump terahertz probe spectroscopy was performed over a graduated size distribution of CdS nanobelts to investigate the size and surface effects on the transient photoconductivity. It was found that the nanobelt size has a profound influence on the carrier localization and photoconductivity dynamics, brought about by the carrier trapping at surface defects. The strong carrier localization in the nanobelt is ascribed to the internal surface boundaries arising from the surface depletion layer. The increased thickness of surface depletion layer due to a continuous trapping of photocarriers at surface defects results in more pronounced carrier localization after photoexcitation.

บรรณานุกรม :
Li, Mingjie , Wu, Bo , Ekahana, Sandy Adhitia , Utama, Muhammad Iqbal Bakti , Xing, Guichuan , Xiong, Qihua , Sum, Tze Chien , Zhang, Xinhai . (2555). Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy..
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Mingjie , Wu, Bo , Ekahana, Sandy Adhitia , Utama, Muhammad Iqbal Bakti , Xing, Guichuan , Xiong, Qihua , Sum, Tze Chien , Zhang, Xinhai . 2555. "Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy.".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Mingjie , Wu, Bo , Ekahana, Sandy Adhitia , Utama, Muhammad Iqbal Bakti , Xing, Guichuan , Xiong, Qihua , Sum, Tze Chien , Zhang, Xinhai . "Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy.."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Li, Mingjie , Wu, Bo , Ekahana, Sandy Adhitia , Utama, Muhammad Iqbal Bakti , Xing, Guichuan , Xiong, Qihua , Sum, Tze Chien , Zhang, Xinhai . Size and surface effects on transient photoconductivity in CdS nanobelts probed by time-resolved terahertz spectroscopy.. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.