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논문 기본 정보

자료유형
학술저널
저자정보
Hyung‑Jin Lee (Kwangwoon University) Soo‑Young Moon (Kwangwoon University) Kung‑Yen Lee (National Taiwan University) Sang‑Mo Koo (Kwangwoon University)
저널정보
대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.20 No.5
발행연도
2024.9
수록면
537 - 547 (11page)
DOI
https://doi.org/10.1007/s13391-024-00484-1

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초록· 키워드

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This study investigated the impact of the post-deposition annealing (PDA) process on the material and electrical propertiesof copper oxide (Cu 2 O) and nickel oxide (NiO) thin fi lms deposited on a silicon carbide (SiC) substrate. Through radiofrequency(RF) sputtering, these fi lms were subjected to PDA in a nitrogen (N 2 ) and oxygen (O 2 ) gas environment. Remarkably,the Cu 2 O fi lms resisted phase transition following the N 2 PDA process but exhibited a transition to cupric oxide (CuO) afterundergoing the O 2 PDA process. The symmetry of Cu 2p in the as-deposited Cu 2 O fi lm was excellent; however, the phasetransformedCuO fi lms exhibited an increase in binding energy and the emergence of satellite peaks. The Ni 2p exhibitedvarious defects, such as nickel vacancies (V Ni ) and interstitial oxygen (O i ), in response to the diff erent PDA atmospheres. The rectifi cation ratios of the N 2 -annealed Cu 2 O and NiO devices were determined as 1.50 × 10 7 and 4.01 × 10 6 , respectively,signifying a substantial enhancement by a factor of approximately 789 for the Cu 2 O/SiC device and 124 for the NiO/SiCdevice relative to their non-annealed counterparts. The fi ndings of this study indicate that meticulous control of depositionfor potential p -type materials such as Cu 2 O and NiO can signifi cantly improve the performance in applications involvinghigh-throughput and low-cost electronics.

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