카드뮴 셀레나이드 양자점과 단일벽 탄소나노튜브로 구성된이종 나노 소재를 기반으로 한 광전소자의 제작 및 특성평가
Fabrication and characterization of optoelectronic device usingCdSe nanocrystal quantum dots/single-walled carbon nanotubes
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In this paper, we fabricated the optoelectronic device based on Cadmium selenide(CdSe) nanocrystal quantum dots (NQDs)/single-walled carbon nanotubes(SWNTs) heterostructure using dieletrophoretic force. The efficient charge transfer phenomena from CdSe to SWNT make CdSe-Pyridine(py)-SWNT unique heterostructures for novel optoelectronic device. The conductivity of CdSe-py-SWNT was increased when it was exposed at ultra violet(UV) lamp, and varied as a function of wavelength of incident light.
Abstract
In this paper, we fabricated the optoelectronic device based on Cadmium selenide(CdSe) nanocrystal quantum dots (NQDs)/single-walled carbon nanotubes(SWNTs) heterostructure using dieletrophoretic force. The efficient charge transfer phenomena from CdSe to SWNT make CdSe-Pyridine(py)-SWNT unique heterostructures for novel optoelectronic device. The conductivity of CdSe-py-SWNT was increased when it was exposed at ultra violet(UV) lamp, and varied as a function of wavelength of incident light.
참고문헌 (30)
- A.P.Alivisato, "Semiconductor clusters,nanocrystals,and quantum dots", Science, 271, pp.933~937 (1996)
- X. Michalet, "Quantum dots for live cells,in vivo imaging,and diagnostics", Science, 307, pp.538~544 (2005)
- 윤광석, "미소유체 칩 상에서 Quantum Dot 및 마이크로 비드를 이용한 생체물질 분석", 센서학회지, 14(5), pp.308~312 (2005), 한국센서학회
- 이헌복, "Properties and SPICE modeling for a Schottky diode fabricated on the cracked GaN epitaxial Layers on (111) silicon", 센서학회지, 14(2), pp.96~100 (2005), 한국센서학회
- A.J.Nozik, "Quantum dot solar cells", Physica E, 14, pp.115~120 (2002)
- P. O. Anikeeva, "Quantum dot light-emitting devices with electroluminescence tunable over the entire visible spectrum", Nano Lett, 9, pp.2532~2536 (2009)
- A. Madhukar, "Integrated semiconductor nanocrystal and epitaxical nanostructure systems:structural and optical Behavior", Nano Lett, 5, pp.479~482 (2005)
- D. C. Oertel, "Photodetectors based on treated CdSe quantum-dot films", Appl. Phys. Lett, 87, pp.213~505 (2005)
- C. B. Murray, "Self-organization of CdSe nanocrystallites into three-dimensional quantum dot superlattices", Science, 270, pp.1335~1338 (1995)
- D. Yu, "n-type conducting CdSe nanocrystal solids", Science, 300, pp.1277~1280 (2003)
- V. J. Porter, "Photoconduction in annealed and chemically treated CdSe", ZnS inorganic nanocrystal films, 2008, pp.112, 2308~2316
- M. V. Jarosz, "Photoconductivity studies of treated CdSe quantum dot films exhibiting increased exciton ionization efficiency", Phys. Rev. B, 70, pp.195~327 (2004)
- S. Ravindran, "Covalent coupling of quantum dots to multiwalled carbon nanotubes for electronic device applications", Nano Lett, 3, pp.447~453 (2003)
- S. Ravindran, "Self assembly of ordered artificial solids of semiconducting ZnS capped CdSe nanoparticles at carbon nanotube ends", Carbon, 42, pp.1537~1542 (2004)
- B. J. Landi, "Noncovalent attachment of CdSe quantum dots to single wall carbon nanotubes", Mat. Lett, 60, pp.3502~3506 (2006)
- L. Hu, "Light-induced charge transfer in Pyrene", CdSe-SWNT hybrids, 2008, pp.20, 939~946
- M. Olek, "Quantum dot modified multiwall carbon nanotubes", J. Phys. Chem. B, 110, pp.12901~12904 (2006)
- B. K. Yen, "A microfabricated gasliquid segmented flow reactor for high-temperature synthesis:the case of CdSe quantum dots", Angew. Chem. Int. Ed, 44, pp.5447~5451 (2005)
- E. Kucur, "Determination of quantum confinement in CdSe nanocrystals by cyclic voltammetry", J. Chem. Phys, 119, pp.2333~2337 (2003)
- A. L. Efros, "The electronic structure of semiconductor nanocrystals", Annu. Rev. Mater. Sci, 30, pp.475~521 (2000)
- S. Kazaoui, "Electrochemical tuning of electronic states in single-wall carbon nanotubes studied by In situ absorption spectroscopy and AC resistance", Appl. Phys. Lett, 78, pp.3433~3435 (2001)
- R. J. Chen, "Molecular photodesorption from single-walled carbon nanotubes", Appl. Phys. Lett, 79, pp.2258~2060 (2001)
- M. E. Itkis, "Bolometric infrared photoresponse of suspended single-walled carbon nanotube films", Science, 312, pp.413~416 (2006)
- C. L. Kane, "Ratio problem in single carbon nanotube fluorescence spectroscopy", Phys. Rev. Lett, 90, pp.207~401 (2006)
- I. A. Levitsky, "Photoconductivity of single-wall carbon nanotubes under continuous-wave near-infrared illumination", Appl. Phys. Lett, 83, pp.1857~1859 (2003)
- X. Qiu, "Photoconductivity spectra of single-carbon nanotubes:Implications on the nature of their excited states", Nano Lett, 5, pp.749~752 (2005)
- S. H. Jhi, "Electronic properties of oxidized carbon nanotubes", Phys. Rev. Lett, 85, pp.1710~1713 (2000)
- J. Kong, "Nanotube molecular wires as chemical sensors", Science, 287, pp.622~625 (2000)
- P. G. Collins, "Extreme oxygen sensitivity of electronic properties of carbon nanotubes", Science, 287, pp.1801~1804 (2000)
- S. Kazaoui, "Electro chemical tuning of electronic states in single-wall carbon nanotubes studied by in situ absorption spectroscopy and ac resistance", Appl. Phys. Lett, 78, pp.3433~3435 (2001)
