CAJ | 학술논문

利用M-2000UI型宽光谱可变入射角椭偏仪研究十六氟铜酞菁(F_(16)CuPc)和铜酞菁(CuPc)薄膜的光学性质. 在248～1 650 nm使用逐点拟合的方法对测得椭偏光谱进行分析, 获得两种薄膜的折射率、消光系数、复介电常数和吸收系数. 讨论了外环氟取代基对酞菁光学性质的影响, 结果表明, 共轭酞菁大环上的外围取代基对薄膜的响应波长和非正常色散影响较大. 分析了两种酞菁的电子结构及吸收谱成因, 并由吸收边外推得到两种材料的光学禁带宽度(E_g).
이용M-2000UI형관광보가변입사각타편의연구십륙불동태정(F_(16)CuPc)화동태정(CuPc)박막적광학성질. 재248～1 650 nm사용축점의합적방법대측득타편광보진행분석, 획득량충박막적절사솔、소광계수、복개전상수화흡수계수. 토론료외배불취대기대태정광학성질적영향, 결과표명, 공액태정대배상적외위취대기대박막적향응파장화비정상색산영향교대. 분석료량충태정적전자결구급흡수보성인, 병유흡수변외추득도량충재료적광학금대관도(E_g).
Optical properties of copper phthalocyanine ( CuPc ) and perfluorinated copper phthalocyanine (F_(16)CuPc) thin films were studied by means of spectroscopic ellipsometry on a variable angle spectrometric ellipsometer. Thin films of these phthalocyanines were prepared on single crystal silicon substrates. Spectroscopic ellipsometry measurements were performed at different angles of incidence (55° ,60° ,65° and 70°) in a wavelength range of 248 ～ 1 650 nm (0.75 ～5 eV). The spectral dependences of optical constants, dielectric functions and absorption coefficients of these films were obtained by the simultaneous point-by-point fitting of the experimental data. It has been found that the substituting groups on the conjugated phthalocyanine macrocycles strongly influence resonance wavelength and abnormal dispersion of the thin films. The optical band gap ( E_g) of each material was also derived from the extrapolation of the edge of absorption.