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Scaling behavior and morphology evolution of CH3NH3PbI3 perovskite thin films grown by thermal evaporation
Liu, Y. Y.; T. Zhou; M. L. Sun; D. Zhao; Q. Q. Wei; Y. Sun; R. D. Wang; F. M. Jin; Q. L. Niu and Z. S. Su
2017
发表期刊Materials Research Express
卷号4期号:7
摘要The growth dynamics of CH3NH3PbI3 (MAPbI(3)) perovskite thin films, deposited by thermal evaporation, has been investigated by atomic force microscope and height-height correlation function analysis. The unstable scaling behavior of initial perovskite films exhibiting the growth of islands, resulting in rougher film formation has been observed. After the formation of continuous film, the roughening has been characterized by analyzing the scaling exponent alpha similar to 0.70, growth exponent beta = 0.79 +/- 0.057, 1/ z = 0.78 +/- 0.038, and 2D fast Fourier transform. Anomalous scaling behavior of the MAPbI(3) thin films and the formation of the rapid surface roughening are discovered. It is demonstrated that step-edge barrier induced mound growth may play the dominate role in the growth mechanism of MAPbI(3) thin films on Si substrates. Further, the growth behavior of MAPbI(3) film on ITO substrates is investigated as a comparison, and it reveals that the growth of MAPbI(3) thin films is largely affected by the initial substrates underneath the growing films.
收录类别sci ; ei
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59107
专题中科院长春光机所知识产出
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Liu, Y. Y.,T. Zhou,M. L. Sun,et al. Scaling behavior and morphology evolution of CH3NH3PbI3 perovskite thin films grown by thermal evaporation[J]. Materials Research Express,2017,4(7).
APA Liu, Y. Y..,T. Zhou.,M. L. Sun.,D. Zhao.,Q. Q. Wei.,...&Q. L. Niu and Z. S. Su.(2017).Scaling behavior and morphology evolution of CH3NH3PbI3 perovskite thin films grown by thermal evaporation.Materials Research Express,4(7).
MLA Liu, Y. Y.,et al."Scaling behavior and morphology evolution of CH3NH3PbI3 perovskite thin films grown by thermal evaporation".Materials Research Express 4.7(2017).
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