Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Young-Woo Heo"'
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 7, Iss 3, Pp 100450- (2022)
The transfer energy of oxygen vacancy of La and Y co-doped CeO2 is investigated in which the total amount of La and Y is fixed at 20 at%. Although both the La3+ (1.16 Å) and Y3+ (1.032 Å) ions are larger than the Ce4+ ions (0.97 Å), individual sin
Externí odkaz:
https://doaj.org/article/4d5ff105638a43fa9625dbedb84f4a90
Autor:
Se-Yun Kim, Sanghun Hong, Seung-Hyun Kim, Dae-Ho Son, Young-Ill Kim, Sammi Kim, Young-Woo Heo, Jin-Kyu Kang, Dae-Hwan Kim
Publikováno v:
Nanomaterials, Vol 10, Iss 9, p 1874 (2020)
In this study, a 5-nm thick Al2O3 layer was patterned onto the Mo electrode in the form of a dot to produce a local rear contact, which looked at the effects of this contact structure on Cu2ZnSn(S1-xSex)4 (CZTSSe) growth and solar cell devices. Mo wa
Externí odkaz:
https://doaj.org/article/ecc42d3da56b49ebabd64193e21a36d5
Autor:
Sanghun Hong, Se-Yun Kim, Dae-Ho Son, Seung-Hyun Kim, Young-Ill Kim, Kee-Jeong Yang, Young-Woo Heo, Jin-Kyu Kang, Dae-Hwan Kim
Publikováno v:
Nanomaterials, Vol 10, Iss 1, p 43 (2019)
When CZTSSe is synthesized using a metal precursor, large voids of nonuniform size form at Mo back contact side. Herein, we demonstrate that the voids and CZTSSe in the lower part of the CZTSSe double layer can be controlled by using an Al2O3-pattern
Externí odkaz:
https://doaj.org/article/41587319419141c2a2994d4aaf3279f9
Autor:
Imas Noviyana, Annisa Dwi Lestari, Maryane Putri, Mi-Sook Won, Jong-Seong Bae, Young-Woo Heo, Hee Young Lee
Publikováno v:
Materials, Vol 10, Iss 7, p 702 (2017)
Top-contact bottom-gate thin film transistors (TFTs) with zinc-rich indium zinc tin oxide (IZTO) active layer were prepared at room temperature by radio frequency magnetron sputtering. Sintered ceramic target was prepared and used for deposition from
Externí odkaz:
https://doaj.org/article/ed4cfaffd2264048a1e2f270dc255bc3
Publikováno v:
Journal of Composite Materials. 57:1423-1434
The field of application of Glass Fiber Reinforced Polymer expands as well as the size of the component where composite material is applied. Due to the size limitation of the prepreg used, it is difficult to apply 1ply to large parts. Many studies ha
Publikováno v:
Polymer Composites. 44:1108-1115
Autor:
Seong-Uk Oh, Dokyum Kim, In-Taek Lee, Chan-Sik Choi, Jung-A Lee, Young-Woo Heo, Joon-Hyung Lee
Publikováno v:
International Journal of Hydrogen Energy. 47:33410-33419
Autor:
Yujin Nam, Maengsuk Kim, Se‐Yun Kim, Jina Jung, Gunasekaran Rajendra Kumar, Joon‐Hyung Lee, Sangwook Lee, Chul‐Hong Park, Young‐Woo Heo
Publikováno v:
Advanced Optical Materials.
Publikováno v:
Science and Engineering of Composite Materials. 29:403-411
Glass Fiber Reinforced Polymer (GFRP) is widely used as aerospace material requiring high specific strength, specific stiffness, and excellent mechanical and chemical properties. To apply the already approved composite materials to other processes, a