Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Hai Joon Lee"'
Autor:
Sun-Young Lee, Seung-Hyun Kim, Ill Won Kim, Hae Jin Seog, Sung Sik Won, Jungmin Park, Aman Ullah, Hai Joon Lee, Chang Won Ahn
Publikováno v:
Journal of the Korean Physical Society. 72:1467-1483
Lead-free potassium sodium niobate (KNN)-based thin films have attracted much interest in replacing current lead zirconate titanate (PZT)-based piezoelectric thin films in micro electromechanical (MEMS) devices due to the increasing awareness and leg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d4b488025754770841366f1d6532ede
https://doi.org/10.3938/jkps.72.1467
https://doi.org/10.3938/jkps.72.1467
Autor:
Hai-joon Lee, Min-ae Lee
Publikováno v:
The Korean Journal of Physical Education. 56:495-511
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30bd65a1ac9b293057e7a97537623fc
https://doi.org/10.23949/kjpe.2017.05.56.3.37
https://doi.org/10.23949/kjpe.2017.05.56.3.37
Autor:
Jin-Sil Choi, Hai-Joon Lee
Publikováno v:
The Korean Journal of Physical Education. 56:633-644
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71a51a7751e6076d231366c3ed01d310
https://doi.org/10.23949/kjpe.2017.01.56.1.46
https://doi.org/10.23949/kjpe.2017.01.56.1.46
Autor:
Chang Won Ahn, Hai Joon Lee, Achiri Tange, Sung Sik Won, Hae Jin Seog, Bong Chan Park, Ill Won Kim
Publikováno v:
Journal of the Korean Physical Society. 66:1401-1405
Na0.5K0.5NbO3 (NKN) thin films were grown on Pt(111)/Ti/SiO2/Si substrates by using RFmagnetron sputtering. We investigated the behavior of the ferroelectric polarization. Well-saturated P-V hysteresis loops were observed, but the P-V hysteresis loop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be3d2663e726619cbf0538c24537fc5f
https://doi.org/10.3938/jkps.66.1401
https://doi.org/10.3938/jkps.66.1401
Autor:
Jin Sik Choi, Aman Ullah, Sun-Young Lee, Bae Ho Park, Hai Joon Lee, Hak-In Hwang, Ill Won Kim, Jin-Soo Kim, Chang Won Ahn
Publikováno v:
Journal of Alloys and Compounds. 509:L194-L198
Piezoelectric (K 0.5 Na 0.5 )NbO 3 (KNN) and (K 0.5 Na 0.5 )(Nb 0.7 Ta 0.3 )O 3 (KNNT) thin films were prepared via chemical solution deposition. An analysis of X-ray diffraction revealed that Ta 5+ diffuses into the KNN to form a single perovskite s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4400ecd040815349e451157c509f30ba
https://doi.org/10.1016/j.jallcom.2011.03.031
https://doi.org/10.1016/j.jallcom.2011.03.031
Publikováno v:
Journal of the Korean Physical Society. 58:640-644
Li-doped ZnO films were prepared on Pt/TiO2/SiO2/Si substrates by using RF magnetron sputtering. The films were crystallized at temperatures above 400 ◦C, which was confirmed by X-ray diffraction. The shapes of the grains changed from seed-like to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe6aa785ec71af3006ce83320bf090c8
https://doi.org/10.3938/jkps.58.640
https://doi.org/10.3938/jkps.58.640
Autor:
Sun-Young Lee, Hai Joon Lee, Jae-Shin Lee, Aman Ullah, Hak-In Hwang, Chang Won Ahn, Ill Won Kim, Ali Hussain
Publikováno v:
Journal of the Korean Physical Society. 57:1102-1105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38c58b9336c73c9400703491cdbc1e42
https://doi.org/10.3938/jkps.57.1102
https://doi.org/10.3938/jkps.57.1102
Publikováno v:
Thin Solid Films. 518:6390-6393
Lead-free K 0.48 Na 0.52 NbO 3 (KNN) ferroelectric thin films were prepared using the radio-frequency magnetron sputtering method. The crystallized KNN phase was confirmed using X-ray diffraction. The KNN thin film exhibited a well-saturated ferroele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c87e1f2c00de1312b6f72759bcf2f27
https://doi.org/10.1016/j.tsf.2010.02.078
https://doi.org/10.1016/j.tsf.2010.02.078
Publikováno v:
Current Applied Physics. 10:1174-1181
Lead-free piezoelectric (1 − x)(Bi0.5(Na0.78K0.22)0.5TiO3)–xBiAlO3 (abbreviated BNKT22–BA, x = 0.00–0.100) ceramics were synthesized using a conventional sintering technique. The incorporation of BA into the BNKT22 lattice was investigated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::627db12c813c87ff2d93cc42f91e252b
https://doi.org/10.1016/j.cap.2010.02.006
https://doi.org/10.1016/j.cap.2010.02.006
Publikováno v:
Journal of the Korean Physical Society. 54:863-866
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a103d14abb14ff45ad778c1b39c71f96
https://doi.org/10.3938/jkps.54.863
https://doi.org/10.3938/jkps.54.863