http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
[CE-0002] Genotype study for heading date using GWAS and genomic selection in wheat core-set
Changhyun Choi(Changhyun Choi),Myoung Hui Lee(Myoung Hui Lee),Urim Kim(Urim Kim),Jin-Kyung Cha(Jin-Kyung Cha),Kyeong-Min Kim(Kyeong-Min Kim),Chon-Sik Kang(Chon-Sik Kang),Jiyoung Son(Jiyoung Son),Jong- 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
Jin, Changhyun,Park, Sunghoon,Kim, Hyunsu,Kim, Hyoun Woo,Lee, Chongmu Royal Swedish Academy of Sciences 2012 Physica scripta Vol.2012 No.t149
<P>Ga<SUB>2</SUB>O<SUB>3</SUB> nanorods were synthesized by thermal evaporation of GaN powders, and the influence of In<SUB>2</SUB>O<SUB>3</SUB> capping and subsequent annealing on their luminescence properties was examined. The results of transmission electron microscopy and x-ray diffraction analyses indicated that the cores and shells of the annealed coaxial nanorods are monoclinic-structured single-crystal Ga<SUB>2</SUB>O<SUB>3</SUB> and body-centered cubic-structured single-crystal In<SUB>2</SUB>O<SUB>3</SUB>, respectively. Photoluminescence (PL) measurements revealed that the blue emission band of Ga<SUB>2</SUB>O<SUB>3</SUB> nanorods centered at approximately 460 nm was increased in intensity slightly by In<SUB>2</SUB>O<SUB>3</SUB> coating and was increased in intensity further by subsequent thermal annealing. The PL peak was red-shifted from ~460 to ~530 nm by oxygen annealing. In contrast, the PL emission intensity of the nanorods was increased significantly and the PL peak was red-shifted from ~460 to ~590 nm by annealing in a reducing atmosphere. In addition, the origin of the PL intensity enhancement and of the PL peak shift by annealing is discussed.</P>
Preparation, structure and photoluminescence properties of SiO<sub>2</sub>–coated ZnS nanowires
Jin, Changhyun,Lee, Jungkeun,Baek, Kyungjoon,Lee, Chongmu WILEY-VCH Verlag 2010 Crystal research and technology Vol.45 No.10
<P>It is essential to passivate one-dimensional (1D) nanostructures with insulating materials to avoid crosstalking as well as to protect them from contamination and oxidation. The structure and influence of thermal annealing on the photoluminescence properties of ZnS-core/SiO<SUB>2</SUB>-shell nanowires synthesized by the thermal evaporation of ZnS powders followed by the sputter deposition of SiO<SUB>2</SUB> were investigated. Transmission electron microscopy and X-ray diffraction analyses revealed that the cores and shells of the core-shell nanowires were single crystal zinc blende-type ZnO and amorphous SiO<SUB>2</SUB>, respectively. Photoluminescence (PL) measurement showed that the core-shell nanowires had a green emission band centered at around 525 nm with a shoulder at around 385 nm. The PL emission of the core-shell nanowires was enhanced in intensity by annealing in an oxidative atmosphere and further enhanced by subsequently annealing in a reducing atmosphere. Also the origin of the enhancement of the green emission by annealing is discussed based on the energy-dispersive X-ray spectroscopy analysis results. (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)</P>
Jin, Changhyun,Lee, Jungkeun,Park, Sunghoon,Lee, Chongmu WILEY‐VCH Verlag 2011 Crystal research and technology Vol.46 No.3
<P><B>Abstract</B></P><P>MgO nanorods were grown by the thermal evaporation of Mg<SUB>3</SUB>N<SUB>2</SUB> powders on the Si (100) substrate coated with a gold thin film. The MgO nanorods grown on the Si (100) substrate were a few tens of nanometers in diameter and up to a few hundreds of micrometers in length. MgO/SiO<SUB>2</SUB> core‐shell nanorods were also fabricated by the sputter‐deposition of SiO<SUB>2</SUB>onto the MgO nanorods. Transmission electron microscopy (TEM) and X–ray diffraction (XRD) analysis results indicated that the cores and shells of the annealed core‐shell nanorods were a face‐centered cubic‐type single crystal MgO and amorphous SiO<SUB>2</SUB>, respectively. The photoluminescence (PL) spectroscopy analysis results showed that SiO<SUB>2</SUB> coating slightly decreased the PL emission intensity of the MgO nanorods. The PL emission of the MgO/SiO<SUB>2</SUB> core‐shell nanorods was, however, found to be considerably enhanced by thermal annealing and strongly depends on the annealing atmosphere. The PL emission of the MgO/SiO<SUB>2</SUB> core‐shell nanorods was substantially enhanced in intensity by annealing in a reducing atmosphere, whereas it was slightly enhanced by annealing in an oxidative atmosphere. The origin of the PL enhancement by annealing in a reducing atmosphere is discussed with the aid of energy‐dispersive X‐ray spectroscopy analyses. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</P>
Ultraintense Luminescence in Semiconducting‐Material‐Sheathed MgO Nanorods
Jin, Changhyun,Kim, Hyunsu,Lee, Wan In,Lee, Chongmu WILEY‐VCH Verlag 2011 ADVANCED MATERIALS Vol.23 No.17
<P><B>Well‐faceted MgO nanorods synthesized by the thermal evaporation of Mg<SUB>3</SUB>N</B><SUB><B>2</B></SUB>are sheathed with TiO<SUB>2</SUB>, resulting in ultraintense blue‐green luminescence. Intense emissions with a variety of wavelengths, ranging from the ultraviolet to the infrared, may be possible by sheathing MgO nanorods with a semiconducting material of optimal thickness. </P>
Jin, Changhyun,Kim, Hyunsu,Ryu, Han-Youl,Kim, Hyoun Woo,Lee, Chongmu American Chemical Society 2011 The Journal of Physical Chemistry Part C Vol.115 No.17
<P>ZnO-core/SnO<SUB>2</SUB>-shell nanorods were fabricated by a two-step process: thermal evaporation of ZnO powders and atomic layer deposition of SnO<SUB>2</SUB>. Transmission electron microscopy and X-ray diffraction revealed the cores and shells of the as-prepared core–shell nanorods to be single crystal wurtzite-type ZnO and polycrystalline rutile-type tetragonal SnO<SUB>2</SUB>, respectively. Photoluminescence (PL) measurements showed that the intensity of near-band edge (NBE) emission of ZnO nanorods was enhanced significantly by the SnO<SUB>2</SUB> coating. The maximum intensity of NBE emission of the ZnO-core/SnO<SUB>2</SUB>-shell nanorods obtained with a shell layer thickness of 15 nm was ∼25 times higher than that of the ZnO nanorods. The enhancement of the NBE emission might be due to the combination of the following sources: the giant oscillator strength effect due to subwavelength optical resonant cavity formation in the nanorods, the quantum confinement of photogenerated carriers inside the ZnO cores, the suppression of visible emission and nonradiative recombination due to the formation of a depletion region in the ZnO cores, and the suppression of carrier capture by surface states. In particular, the exceptionally high NBE emission intensity for a specific shell layer thickness of 15 nm was attributed mainly to subwavelength optical resonant cavity formation.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpccck/2011/jpccck.2011.115.issue-17/jp2000514/production/images/medium/jp-2011-000514_0003.gif'></P>
Jin, Changhyun,Kim, Hyunsu,Lee, Chongmu AmericanChemical Society 2012 ACS APPLIED MATERIALS & INTERFACES Vol.4 No.3
<P>A recent paper reported that intense emissions with arange ofwavelengths over a wide spectral range, from ultraviolet to infraredlight, might be possible by sheathing MgO nanorods with a semiconductingmaterial with an optimal sheath thickness. In addition, the paperhypothesized that an ultraintense short-wavelength emission couldbe obtained by sheathing MgO nanorods with a ∼17 nm ZnO thinfilm in the paper. In this study, we found that the intensity ratioof the near-band edge emission to the deep level emission (<I>I</I><SUB>NBE</SUB>/<I>I</I><SUB>DL</SUB>) of theMgO-core/ZnO-shell nanorods with a mean shell layer thickness of 17nm was as high as ∼30, whereas the <I>I</I><SUB>NBE</SUB>/<I>I</I><SUB>DL</SUB> ratio of the bare-MgO nanorods was0. This near-band edge emission intensity enhancement by sheathingthe MgO nanorods with ZnO is by far more significant than that bysheathing the ZnO nanorods with other materials including MgO. Thisis because subwavelength optical resonance cavities form in the MgO-core/ZnO-shellnanorods with faceted surfaces, whereas they do not form in the ZnO-core/MgO(or other material)-shell nanorods with no faceted surfaces.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2012/aamick.2012.4.issue-3/am2014794/production/images/medium/am-2011-014794_0004.gif'></P>