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| 天然黄铁矿光吸收特征 | |
| 引用本文： | Wang XH,Huang T,Huang F,Zhang SN,Wang Y,Gao C. 天然黄铁矿光吸收特征[J]. 光谱学与光谱分析, 2011, 31(9): 2508-2511 |
| 作者姓名： | Wang XH Huang T Huang F Zhang SN Wang Y Gao C |
| 作者单位： | 1. 沈阳师范大学物理科学与技术学院,辽宁沈阳,110034 2. 东北大学资源与土木工程学院,辽宁沈阳110819;过程与矿产资源国家重点实验室(中国地质大学地质),湖北武汉430074 3. 东北大学资源与土木工程学院,辽宁沈阳,110819 |
| 基金项目： | 国家自然科学基金项目(40872045); 地质过程与矿产资源国家重点实验室开放课题(GPMR200906)资助 |
| 摘 要： | 以天然黄铁矿为样本,用Cary 500型紫外可见近红外分光光度计在200～2 000 nm范围内测出了样品的吸收谱和反射谱,计算出了吸收系数,并根据Tauc规则算出了样品的禁带宽度.结果表明:所测天然黄铁矿光吸收系数在105数量级;在吸收图谱中出现了明显的肩行结构,可以判断样品属于间接禁带半导体,其禁带宽度为0.64 ... |
| 关 键 词： | 黄铁矿 禁带宽度 吸收系数 光电转化效率 |
Light absorption characteristic of natural pyrite |
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| Wang Xiu-Hong,Huang Tao,Huang Fei,Zhang Sheng-Nan,Wang Yi,Gao Chao. Light absorption characteristic of natural pyrite[J]. Spectroscopy and Spectral Analysis, 2011, 31(9): 2508-2511 | |
| Authors: | Wang Xiu-Hong Huang Tao Huang Fei Zhang Sheng-Nan Wang Yi Gao Chao |
| Affiliation: | WANG Xiu-hong1,HUANG Tao1,HUANG Fei2,3,ZHANG Sheng-nan1,WANG Yi2,GAO Chao1 1.College of Physics Science and Technology,Shenyang Normal University,Shenyang 110034,China 2.College of Materials and Metallurgy,Northeastern University,Shenyang 110819,China 3.State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China |
| Abstract: | In the present paper, the natural pyrite was the sample. With the UV-visible near-infrared spectrophotometer Cary 500, we measured the absorption and reflection spectra of the sample within 200-2 000 nm range, calculated the absorption coefficient and figured out the forbidden band of the sample according to the Tauc regulation. The authors discovered that the light absorption coefficient of natural pyrite measured is 10(5) order of magnitude; in the absorption pattern we found obvious shoulder line structure and we can judge that the sample belongs to indirect forbidden band semiconductor, its forbidden band was 0.64 eV in width and the "limit conversion efficiency" corresponding to 0.64 eV could reach 14% or so. With the comparison of the results of this paper and the forbidden band of the solar battery materials at present in common, this paper mainly analyzed the effect of the light absorption coefficient and forbidden band on the photoelectric conversion efficiency of pyrite. The authors found that its high absorption coefficient provided the possibility that pyrite will be used as solar battery with the film form, but its forbidden band was narrower than the theoretical number. The authors could broaden its forbidden band or make composite films to use. |
| Keywords: | Pyrite Forbidden band Absorption coefficient Photoelectric conversion efficiency |
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