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1. 香港科技大学 电子及计算机工程系, 香港 九龙
2. 2. 南开大学 光电子所 天津,300071
收稿日期:2009-07-01,
修回日期:1900-01-02,
网络出版日期:2009-12-30,
纸质出版日期:2009-12-30
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赵淑云;孟志国;吴春亚;王文;郭海成. 基于溶液法的金属诱导碟型晶畴多晶硅薄膜和薄膜晶体管的研究[J]. 液晶与显示, 2009,24(6): 812-817
ZHAO Shu-yun;MENG Zhi-guo;WU Chun-ya;WONG Man;KWOK Hoi-sing. Investigation of Disk-Like Domain Polycrystalline Silicon Films and Thin-Film Transistors Using Solution-Based Metal Induced Crystallization[J]. 液晶与显示, 2009,24(6): 812-817
赵淑云;孟志国;吴春亚;王文;郭海成. 基于溶液法的金属诱导碟型晶畴多晶硅薄膜和薄膜晶体管的研究[J]. 液晶与显示, 2009,24(6): 812-817 DOI:
ZHAO Shu-yun;MENG Zhi-guo;WU Chun-ya;WONG Man;KWOK Hoi-sing. Investigation of Disk-Like Domain Polycrystalline Silicon Films and Thin-Film Transistors Using Solution-Based Metal Induced Crystallization[J]. 液晶与显示, 2009,24(6): 812-817 DOI:
以非晶硅为晶化前驱物,采用镍盐溶液浸沾的方法可以得到超大尺寸碟型晶畴结构的低温多晶硅薄膜。所得多晶硅薄膜的平均晶畴尺寸大约为50 m,空穴的最高霍尔迁移率为30.8 cm2/Vs,电子的最高霍尔迁移率为45.6 cm
2
/Vs。用这种多晶硅薄膜为有源层,所得多晶硅TFT的场效应迁移率典型值为70~80 cm
2
/Vs,亚阈值斜摆幅为1.5 V/decade,开关电流比为1.0110
7
,开启电压为-8.3 V。另外,P型的TFT在高栅偏压和热载流子偏压下具有良好的器件稳定性。
Polycrystalline silicon (poly-Si) films consisting of super-large disk-like domains were obtained with solution-based metal-induced crystallization (SMIC) of amorphous silicon. The prepared disk-like domain SMIC poly-Si has an average domain size of up to 50 m
highest hole Hall mobility of 30.8 cm
2
/Vs
and highest electron Hall mobility of 45.6 cm
2
/Vs. P-type poly-Si TFT based on disk-like domain SMIC poly-Si has high field effect mobility of 70~80 cm
2
/V
-1
s
-1
sub-threshold slope of 1.5 V/decade
on/off state current ratio of 1.0110
7
and threshold voltage of -8.3 V. Also
P-type disk-like domain SMIC poly-Si TFTs exhibited excellent reliability under high gate bias-stress and hot carrier bias-stress.
Souk J H, Kim J S. 24-in. wide UXGA TFT-LCD for HDTV application [C]//SID 2000 Digest, Calrfornia, USA:SID,2002:452-455.
Kimura M, Fukami T, Kumagawa K, et al. An advanced 23-in. in-pane-switching mode TFT-LCD H1920×V1200Pixels [C]//SID 2000 Digest, Calrfornia, USA:SID,2002: 468-471.
Yoon S Y, Young N, van der Zaag P J, et al.High-performance poly-Si TFTs made by Ni-mediated crystallization through low-shot laser annealing [J]. IEEE Electron Device Lett., 2003,24(1):22-24.
Alain C K, Chan C F. Cheng and mansun chan effects of dopants on the electrical behavior of grain boundary in metal-induced crystallized polysilicon film [J]. IEEE Trans. Electron Devices,2005,52(8):1917-1919.
Meng Z, Wang M, Wong M. High performance low temperature metal-induced unilaterally crystallized polycrystalline silicon thin film transistors for system-on-panel applications [J]. IEEE Trans. Electron Devices,2000, 47(2):404-409.
Lin Chia-Pin, Xiao Yi-Hsuan, Tsui Bing-Yue. High-performance poly-Si TFTs fabricated by lmplant-to-silicide Technique [J]. IEEE Electron Devices Letters, 2005, 26(3):185-187.
Choi J H, Cheon J H, Kim S K. Giant-grain silicon (GGS) and its application to stable thin-film transistor [J]. Displays, 2005,26(3):137-142.
Branz H M. Method for improving the stability of amorphous silicon:United States Patent, 6,713,400 [P].2004-03-30.
Wang M, Meng Z, Wong M. The effects of high temperature annealing on metal-induced laterally crystallized polycrystalline silicon [J]. IEEE Trans. Electron Devices,2000, 47(11):2061-2067.
Hayzelden C, Batstone J L. Silicide formation and silicide-mediated crystallization of nickel-implanted amorphous silicon thin films [J].J. Appl. Phys.,1993, 73(12):8278-8289.
Young N D, Ayres J R. Negative gate bias instability in polycrystalline silicon TFTs [J].IEEE Trans. Electron Devices, 1995, 42(9):1623-1627.
Dimaria D J, Stasiak J W.Trap creation in silicon dioxide produced by hot electrons [J].J. Appl. Phys.,1989, 65(6):2342-2356.
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