Preparation, characterization and optical properties of α-Fe2O3 films by sol-spinning process

被引：14

作者：

Chauhan, P ^{[1
]}

Annapoorni, S ^{[1
]}

Trikha, SK ^{[1
]}

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

来源：

BULLETIN OF MATERIALS SCIENCE | 1998年 / 21卷 / 05期

关键词：

sol-spinning; precursor; nanocrystalline;

D O I：

10.1007/BF02744922

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

alpha-Fe2O3 films were prepared by sol-spinning process using ferric nitrate as a precursor and 2-methoxy ethanol as the solvent. The films were grown on various substrates by spin coating and,were subjected to different annealing temperatures. These were characterized using X-ray and fourier transform infrared spectroscopy (FTIR). The films showed crystallinity at about 500 degrees C. The surface morphology of these films was studied using scanning electron microscopy (SEM) which revealed cracks for films having thickness of the order of 2 mu m. The band gap of these films was observed to be 2.1 eV from UV-vis spectroscopy.

引用

页码：381 / 385

页数：5

共 19 条

[1] Magnetite phase due to energetic argon ion irradiation from a dense plasma focus on hematite thin film [J].

Agarwala, P ;

Annapoorni, S ;

Srivastava, MP ;

Rawat, RS ;

Chauhan, P .

PHYSICS LETTERS A, 1997, 231 (5-6) :434-438

[2] MAGNETIC AND OPTICAL PROPERTIES OF THIN-FILMS IN SYSTEM 1-X FE3O4.XFE8-3O4 [J].

BORRELLI, NF ;

CHEN, SL ;

MURPHY, JA .

IEEE TRANSACTIONS ON MAGNETICS, 1972, MAG8 (03) :648-651

[3]

CHANG WD, 1992, JPN J APPL PHYS, V31, P1334

[4]

CHIN MM, 1988, JPN J APPL PHYS, V24, P2988

[5] CHARACTERISTICS OF ALPHA-FE2O3 THICK-FILM GAS SENSORS [J].

CHUNG, WY ;

LEE, DD .

THIN SOLID FILMS, 1991, 200 (02) :329-339

[6] MAGNETIC-PROPERTIES OF CHEMICAL VAPOR-DEPOSITED COBALT DOPED GAMMA IRON-OXIDE THIN-FILMS [J].

DHARA, S ;

KOTNALA, RK ;

RASTOGI, AC ;

DAS, BK .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1992, 31 (12A) :3853-3857

[7] MAGNETITE THIN-FILMS [J].

FENG, JS ;

BAJOREK, CH ;

NICOLET, MA .

IEEE TRANSACTIONS ON MAGNETICS, 1972, MAG8 (03) :277-278

[8] MAGNETIC RECORDING CHARACTERISTICS OF SPUTTERED GAMMA-FE2O3 THIN-FILM DISKS [J].

HATTORI, S ;

ISHII, Y ;

SHINOHARA, M ;

NAKAGAWA, T .

IEEE TRANSACTIONS ON MAGNETICS, 1979, 15 (06) :1549-1551

[9] EFFECTS OF SOLVENT ON PROPERTIES OF SOL GEL-DERIVED TIO2 COATING FILMS [J].

HU, LL ;

YOKO, T ;

KOZUKA, H ;

SAKKA, S .

THIN SOLID FILMS, 1992, 219 (1-2) :18-23

[10]

KENNEDY JH, 1978, J ELECTROCHEM SOC, V125, P2371

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