| 光谱学与光谱分析 |
|
|
|
|
|
| Light Absorption Characteristics of FeS2-Fe1-xS Heterostructures Synthesized under Hydrothermal Conditions |
| LIU Jia, HUANG Fei*, MENG Lin, YU Hao-ran, CHEN Ying-hua |
| College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China |
|
|
|
|
Abstract Fe-S series, especially FeS2 and Fe1-xS is the main component of crustal rocks as important metal sulphides. Pyrite (FeS2) shows a promising vision in solar cell materials for its high absorption coefficient and suitable band gap. Predecessors have done some researches on the photovoltaic properties of Fe-S series under different conditions. However, little researches have been done on the coexisted sulphide of FeS2 and Fe1-xS. FeS2 and Fe1-xS often appear as symbiotically due to their similar formation conditions. So the study on the optical absorption characteristics of FeS2 and Fe1-xS are of important significance. In order to study the optical absorption characteristics of FeS2-Fe1-xS heterostructures, using the SEM and XRD to characterize the morphology, composition and structure, respectively. The results show that the samples were cubic pyrite with a certain amount of pyrhotite (Fe1-xS). The crystal partical size was between 5 and 10 nm. Measurement of the absorption spectrum was performed using Cary 500 UV-Vis-NIR spectrophotometer, acquiring the results of 1 860～1 889 nm, and the absorption peak in 1879nm. According to the band gap (eV) formula, the band gap value is calculated to be 0.657 8 eV. The extreme electrical-to-optical conversion efficiency achieved was about 15%. By the first principles, we analysed the reason of the changing of the band gap value, and then compared the result with previous one. The internal structure of mineral is the important factor affecting the photoelectric conversion. The light absorption characteristics of FeS2-Fe1-xS heterostructures synthesized under hydrothermal conditions is better than the characteristics from natural pyrite with defects of Co and Ni. The heterostructures can improve the electrical-to-optical conversion efficiency and provide scientific basis for the absorption characteristics research of Fe-S series materials.
|
|
Received: 2014-05-20
Accepted: 2014-08-21
|
|
|
|
Corresponding Authors:
HUANG Fei
E-mail: huangfei@neu.edu.cn
|
|
[1] Wang Mudan, Xing Chengcheng, Cao Ke, et al. J. Mater. Chem. A, 2014, 2(25): 9496.
[2] Rachel Morrish, Rebecca Silverstein, Colin A. Wolden. J. Am. Chem. Soc., 2012, 134(43): 17854.
[3] Hu Ge, Liu Hai, Rajiv Ramanujam Prabhakar, et al. RSC Adv., 2014, 4(32): 16489.
[4] Zhu Leize, Beau J Richardson, Yu Qiuming. Nanoscale, 2014, 6(2): 1029.
[5] Aricò A S, Antonucci V, Antonucci P L, et al. Electrochimica Acta, 1992, 36(3-4): 581.
[6] SONG Dan, LIU Jia, HUANG Fei, et al(宋 丹, 刘 佳, 黄 菲, 等). Earth Science Frontiers(地学前缘), 2013, 20(3): 118.
[7] YAN Ji-min, ZHANG Qi-yuan(严继民, 张启元). Acta Chimica Sinica(化学学报), 1982, 40(9): 774.
[8] CHEN Jian-hua, ZHONG Jian-lian, LI Yu-qiong(陈建华, 钟建莲, 李玉琼). The Chinese Journal of Nonferrous Metals(中国有色金属学报), 2011, 21(7): 1719.
[9] Hu Jun, Zhang Yanning, Matt Law, et al. J. Am. Chem. Soc., 2012, 134(32): 13216.
[10] LI Yu-qiong, CHEN Jian-hua, CHEN Ye(李玉琼, 陈建华, 陈 晔). Acta Physico-Chimica Sinica(物理化学学报), 2010, 26(5): 1435.
[11] Yu Liping, Stephan Laoy, Robert Kykyneshi, et al. Adv. Energy Mater, 2011, 1(5): 748.
[12] XIE Xi-de, FANG Jun-xin(谢希德, 方俊鑫). Solid State Physics(固体物理学). Shanghai: Shanghai Scientific and Technical Publishers(上海: 上海科学技术出版社), 1962. 112.
[13] Liu Hongfei, Chi Dongzhi. J. Vac. Sci. Technol. A, 2012, 30(4): 04D102-1-04D1021-5. |
| [1] |
JIN Wang-jun1, 2, LI Yan1, 2, ZHAO Yue3, MEI Sheng-hua1*. In Situ Raman Study and Kinetic Analysis of Hydrothermal Liquefaction of Glycine[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3448-3453. |
| [2] |
LÜ Yang1, PEI Jing-cheng1*, ZHANG Yu-yang2. Chemical Composition and Spectra Characteristics of Hydrothermal Synthetic Sapphire[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3546-3551. |
| [3] |
WANG Chong1, WANG Jing-hua1, 2, LI Dong-dong1, SHE Jiang-bo2. Preparation of Gd3+-Doped LiYF4∶Yb3+/Ho3+ Micro-Crystal and the Application Research in Anti-Counterfeiting[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3581-3587. |
| [4] |
ZHANG Jia-lin, ZHANG Qian, PEI Jing-cheng*, HUANG Wei-zhi. Gemological and Spectroscopy Characteristics of Synthetic Blue-Green Beryl by Hydrothermal Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2258-2262. |
| [5] |
SUN Feng1, 2, YAN Qing-qing1, WANG Lu1, SUN Zhen-fei1. Study on the Conditions of Hydrothermal Synthesis of Chinese Purple BaCuSi2O6 and the Analysis of Its Products[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2284-2287. |
| [6] |
WANG Chong1, MO Jian-ye1，2, LI Dong-dong1, SHE Jiang-bo2, LIU Zhen2. Application and Research of NaYF4∶Yb3+/Eu3+ Upconverting Luminescent Micro-Nano Particles in Anti-Counterfeiting Identification[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(05): 1525-1529. |
| [7] |
ZHANG Guo-fang1, HU Feng1, XU Jian-yi1, YU Hai-shu1, GE Qi-lu2, ZHANG Yang-huan1,2. Research on the Spectra Characteristics and Catalysis Effects of Nanosized Ce0.95M0.05O2 (M=Fe, Nd, Eu) Solid Solutions[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(11): 3420-3424. |
| [8] |
CHEN Qi-xian1, 2, CHEN Qi-dan1, 2*, ZHONG Xue-yuan1. Preparation of Eco-Friendly Luminescent Carbon Dots Nanomaterial and Application of Hg2+ Detection[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(10): 3086-3091. |
| [9] |
KAN Yu-na, CHEN Bing-wei, ZHAI Sheng-cheng*, MEI Chang-tong. Chemical Compositions of Carbon Sources Affected on Surface Morphology and Spectral Properties of the Synthetic Carbon Microspheres[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(10): 3153-3160. |
| [10] |
ZHANG Guo-fang1, ZHAI Ting-ting1, HOU Zhong-hui1, XU Jian-yi1, WU Yue1, GE Qi-lu2. Research on the Influence of Spectrum Characteristics on the Catalysis Effect of Nanosized CeO2-xNx Solid Solutions[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3192-3198. |
| [11] |
HUANG Fei1, 2, YANG Duo3, MENG Lin1, 2，LI Yong-li2, YAN Ying-can2, LIU Kai-jun2, ZHANG Bao-yun1. Influence of Doping Co Amount on the Crystal Structure Characteristics and Light Absorption Properties of Nano-Micrometer Pyrite Prepared by Thermal Sulfide Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(07): 2004-2009. |
| [12] |
ZHAN Yan1, ZU Hong-ru1, HUANG Di1*, HU Chao-fan1,2*. Rapid Synthesis of Graphene Oxide Quantum Dots via Hydrothermal Strategy for Cell Imaging Application[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(05): 1458-1462. |
| [13] |
GU Si-yu, LI Yue, CAI Yue-tong, GUO Xing-jun, ZHU Yu-wei, YU Xue-wei, YANG Yan, ZHANG Hui-hui*. The Study of Hydrothermal Conditions’s Impact on the Structure of Black Soil Fulvic Acid Based on the Fluorescence Spectral Characteristics[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(02): 488-493. |
| [14] |
WANG hua-yu1, YAN Jing-hui1*, ZOU Ming-qiang2, 3*. Influence of SO2-4/BO3-3 Doping on Properties of NaGd(MoO4)2∶Eu3+ Phosphors[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(01): 139-143. |
| [15] |
HE En-jie1, DONG Jun2, GAO Wei2, ZHANG Zheng-long3. Upconversion Fluorescence Regulation of Single NaGdF4∶Yb3+,Er3+[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(11): 3347-3353. |
|
|
|
|
