| ชื่อเรื่อง | : | Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures |
| นักวิจัย | : | Xing, Guichuan , Chakrabortty, Sabyasachi , Chou, Kok Loong , Nimai Mishra , Huan, Alfred Cheng Hon , Chan, Yinthai , Sum, Tze Chien |
| คำค้น | : | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2553 |
| อ้างอิง | : | Xing, G., Chakrabortty, S., Chou, K. L., Nimai, M., Huan, A. C. H. Chan Y., Sum, T. C. (2010). Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures. Applied physics letters, 97. , 0003-6951 , http://hdl.handle.net/10220/7022 , http://dx.doi.org/10.1063/1.3479048 , 155784 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Applied physics letters |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We present a method to separately tune the multiphoton absorption (MPA) and multiphoton excited photoluminescence using semiconductor core/enlarged-shell quantum dots (QDs), where the enlarged shell greatly enhances the MPA cross-sections while varying the core size facilitates emission wavelength selectivity. Following two-photon absorption (2PA) primarily in the shell and ultrafast charge-carrier localization to the core, luminescence occurs. We exemplify the validity of this method with CdSe/CdS nanorod heterostructures and find that the 2PA cross-section is enlarged to ∼ 1.4×10^6 GM for 180 nm nanorods (with 800 nm, 150 fs laser pulse excitation) which is two to four orders larger than that of CdSe QDs. |
| บรรณานุกรม | : |
Xing, Guichuan , Chakrabortty, Sabyasachi , Chou, Kok Loong , Nimai Mishra , Huan, Alfred Cheng Hon , Chan, Yinthai , Sum, Tze Chien . (2553). Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Xing, Guichuan , Chakrabortty, Sabyasachi , Chou, Kok Loong , Nimai Mishra , Huan, Alfred Cheng Hon , Chan, Yinthai , Sum, Tze Chien . 2553. "Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Xing, Guichuan , Chakrabortty, Sabyasachi , Chou, Kok Loong , Nimai Mishra , Huan, Alfred Cheng Hon , Chan, Yinthai , Sum, Tze Chien . "Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2553. Print. Xing, Guichuan , Chakrabortty, Sabyasachi , Chou, Kok Loong , Nimai Mishra , Huan, Alfred Cheng Hon , Chan, Yinthai , Sum, Tze Chien . Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2553.
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