Ultrafast Terahertz Probes of Charge Transfer and Recombination Pathway of CH$_{3}$NH$_{3}$PbI$_{3}$ Perovskites
Hui-Jie Yan1 , Zhi-Liang Ku2 , Xue-Feng Hu1 , Wan-Ying Zhao1 , Min-Jian Zhong1 , Qi-Biao Zhu1 , Xian Lin1 , Zuan-Ming Jin1** , Guo-Hong Ma1**
1 Department of Physics, Shanghai University, Shanghai 2004442 State Key Laboratory of Advanced Technology For Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070
Abstract ：We use transient terahertz photoconductivity measurements to demonstrate that upon optical excitation of CH$_{3}$NH$_{3}$PbI$_{3}$ perovskite, the hole transfer from CH$_{3}$NH$_{3}$PbI$_{3}$ into the organic hole-transporting material (HTM) Spiro-OMeTAD occurs on a sub-picosecond timescale. Second-order recombination is the dominant decay pathway at higher photo-excitation fluences as observed in neat CH$_{3}$NH$_{3}$PbI$_{3}$ films. In contrast, under similar experimental conditions, second-order recombination weakly contributes the relatively slow recombination between the electrons in the perovskite and the injected holes in HTM, as a loss mechanism at the CH$_{3}$NH$_{3}$PbI$_{3}$/Spiro-OMeTAD interface. Our results offer insights into the intrinsic photophysics of CH$_{3}$NH$_{3}$PbI$_{3}$-based perovskites with direct implications for photovoltaic devices and optoelectronic applications.
收稿日期: 2017-09-21
出版日期: 2018-01-23
:
84.60.Jt
(Photoelectric conversion)
78.47.-p
(Spectroscopy of solid state dynamics)
07.57.Ty
(Infrared spectrometers, auxiliary equipment, and techniques)
引用本文:
. [J]. 中国物理快报, 2018, 35(2): 28401-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/35/2/028401
或
https://cpl.iphy.ac.cn/CN/Y2018/V35/I2/28401
[1] Lee M M, Teuscher J, Miyasaka T et al 2012 Science 338 643 [2] Green M A, Ho-Baillie A and Snaith H J 2014 Nat. Photon. 8 506 [3] Liu M, Johnston M B and Snaith H J 2013 Nature 501 395 [4] Nie W, Tsai H, Asadpour R et al 2015 Science 347 522 [5] Manser J S, Christians J A and Kamat P V 2016 Chem. Rev. 116 21 [6] Lin Q, Armin A, Nagiri R C R et al 2015 Nat. Photon. 9 106 [7] Stranks S D, Eperon G E, Grancini G et al 2013 Science 342 341 [8] Xing G, Mathews N, Sun S et al 2013 Science 342 344 [9] Oga H, Saeki A, Ogomi Y et al 2014 J. Am. Chem. Soc. 136 13818 [10] Yamada Y, Nakamura T, Endo M et al 2014 J. Am. Chem. Soc. 136 11610 [11] Brenner T M, Egger D A and Kronik L 2016 Int. Mater. Rev. 1 15007 [12] Yin W J, Shi T and Yan Y 2014 Appl. Phys. Lett. 104 063903 [13] Shi D, Adinolfi V, Comin R et al 2015 Science 347 519 [14] Yang Y, Yan Y, Yang M et al 2015 Nat. Commun. 6 7961 [15] Wehrenfennig C, Eperon G E, Johnston M B et al 2014 Adv. Mater. 26 1584 [16] Corani A, Li M H, Shen P S et al 2016 J. Phys. Chem. Lett. 7 1096 [17] Marchioro A, Teuscher J, Friedrich D et al 2014 Nat. Photon. 8 250 [18] Yang Y, Yang M, Li Z et al 2015 J. Phys. Chem. Lett. 6 4688 [19] Manser J S and Kamat P V 2014 Nat. Photon. 8 737 [20] Brauer J C, Lee Y, Nazeeruddin M K et al 2016 J. Mater. Chem. C 4 5922 [21] Wehrenfennig C, Liu M, Snaith H J et al 2014 J. Phys. Chem. Lett. 5 1300 [22] Deschler F, Price M, Pathak S et al 2014 J. Phys. Chem. Lett. 5 1421 [23] Fang H, Wang F, Adjokatse S et al 2016 Light: Sci. Appl. 5 e16056 [24] Lang L, Yang J H, Liu H R et al 2014 Phys. Lett. A 378 290 [25] Ulbricht R, Hendry E, Shan J et al 2011 Rev. Mod. Phys. 83 543 [26] Milot R L, Eperon G E, Snaith H J et al 2015 Adv. Funct. Mater. 25 6218 [27] Chan L O V, Salim T, Kadro J et al 2015 Nat. Commun. 6 7903 [28] Wehrenfennig C, Liu M, Snaith H J et al 2014 Energy Environ. Sci. 7 2269 [29] Valverde-Chávez D A, Jr. Ponseca C S, Stoumpos C C et al 2015 Energy Environ. Sci. 8 3700 [30] Jr. Ponseca C S, Savenije T J, Abdellah M et al 2014 J. Am. Chem. Soc. 136 5189 [31] Lui K P H and Hegmann F A 2001 Appl. Phys. Lett. 78 3478 [32] Yettapu G R, Talukdar D, Sarkar S et al 2016 Nano Lett. 16 4838 [33] Jr. Ponseca C S, Hutter E M, Piatkowski P et al 2015 J. Am. Chem. Soc. 137 16043 [34] Snaith H J and Grätzel M 2007 Adv. Mater. 19 3643 [35] Samrana K, Mohammad K N, Michael G et al 2014 Angew. Chem. Int. Ed. 53 2812 [36] Jin Z, Gehrig D, Dyer-Smith C et al 2014 J. Phys. Chem. Lett. 5 3662 [37] Dicker G, Haas M P and Siebbeles L D A 2005 Phys. Rev. B 71 155204 [38] Sheng C, Zhang C, Zhai Y et al 2015 Phys. Rev. Lett. 114 116601 [39] D'Innocenzo V, Grancini G, Alcocer M J et al 2014 Nat. Commun. 5 3586 [40] de Quilettes D W, Vorpahl S M, Stranks S D et al 2015 Science 348 683 [41] Han X W, Hou L, Yang L et al 2016 Chin. Phys. Lett. 33 120701 [42] Fan Z F, Tan Z Y, Wan W J et al 2017 Acta Phys. Sin. 66 087801 (in Chinese)
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
.
[10]
.
[11]
.
[12]
.
[13]
.
[14]
.
[15]
.
2018, Vol. 35 
