Improved performance of perovskite solar cells through using (FA)_x(MA)_1-xPbI₃ optical absorber layer

Abstract

In this work, the perovskite solar cells (PSCs) were fabricated with the bandgap-tunable (FA)_x(MA)_1-xPbI₃ absorber layers through a facile two-stage deposition route. The doping was realized by adding the formamidinium iodide (FAI) into a precursor MAI solution. Both the surface morphology and electrochemical impedance spectra (EIS) were conducted to evaluate the absorber layers or solar cells. After the optimization, the best PSC performance of 14.73% was achieved at a nominal FAI content of 12.5 at.%. The performance enhancement was attributed to both the enhancement of visible light harvesting and carrier transport capability. Besides, the stability of a PSC device based on the single MAPbI3 absorber layer was also investigated, and a power conversion efficiency (PCE) of 11.27% remained even after laying in vacuum for 10 days.

Keywords

A

References

[1] Chung I, Lee B, He J, Chang RPH, Kanatzidis MG. Nature. 2012, 485: 486

[2] Lee MM, Teuscher J, Miyasaka T, Murakami TN, Snaith HJ. Science. 2012, 338: 643

[3] Kim H, Lee C, Im J, Lee K, Moehl T, Marchioro A, Moon S, Humphry-Baker R, Yum J, Moser JE, Graäzel M, Park N. Sci. Rep.. 2012, 2: 591

[4] Kojima A, Teshima K, Shirai Y, Miyasaka T. J. Am. Chem. Soc.. 2009, 131: 6050

[5] Bi D, Yi C, Luo J, Décoppet J, Zhang F, Zakeeruddin S M, Li X, Hagfeldt A, Grätzel M. Nat. Energy. 2016, 1: 16142

[6] Chen H, Ye F, Tang W, He J, Yin M, Wang Y, Xie F, Bi E, Yang X, Grätzel M, Han L. Nature. 2017, 550: 92

[7] Bush KA, Palmstrom AF, Yu ZJ, Boccard M, Cheacharoen R, Mailoa JP, McMeekin D P, Hoye RLZ, Bailie CD, Leijtens T, Peters IM, Minichetti MC, Rolston N, Prasanna R, Sofia S, Harwood D, Ma W, Moghadam F, Snaith HJ, Buonassisi T, Holman ZC, Bent SF, McGehee MD. Nat. Energy. 2017, 2: 17009

[8] Luo J, Im J, Mayer M T, Schreier M, Nazeeruddin MK, Park N, David Tilley S, Fan HJ, Grätzel M. Science. 2014, 345: 1593

[9] Gurudaya. Nano Lett.. 2015, 15: 3833

[10] Kim JH, Jo Y, Kim JH, Jang JW, Kang HJ, Lee YH, Kim DS, Jun Y, Lee JS. Nature. 2015, 9: 11820

[11] Jung K, Seo J, Lee S, Shin H, Park N. J. Mater. Chem. A. 2017, 5: 24790

[12] Heo JH, Han HJ, Lee M, Song M, Kim DH, Im SH. Energy Environ. Sci.. 2015, 8: 2922

[13] Jeon NJ, Noh JH, Yang WS, Kim YC, Ryu S, Seo J, Seok S I. Nature. 2015, 517: 476

[14] He X, Guo P, Wu J, Tu Y, Lan Z, Lin J, Huang M. Sol. Energy. 2017, 157: 853

[15] Zhao Y, Wang J, Zhao B, Jia C, Mou J, Zhu L, Song J, Gu X, Qiang Y. Chinese Physics B. 2018, 27: 024208

[16] Li S, Zhao Y, Gu X, Qiang Y, Tan N. Journal of Materials Science: Materials in Electronics. 2017, 28: 13626

[17] Song J, Li S P, Zhao Y L, Yuan J, Zhu Y, Fang Y, Zhu L, Gu X Q, Qiang Y H. Journal of Alloys and Compounds. 2017, 694: 1232

[18] Yang Y, Song J, Zhao Y L, Zhu L, Gu X Q, Gu Y Q, Che M, Qiang Y H. Journal of Alloys and Compounds. 2016, 684: 84

[19] Yang W S, Noh J H, Jeon N J, Kim Y C, Ryu S, Seo J, Seok S. Science. 2015, 348: 1234

[20] Zhu W, Bao C, Li F, Yu T, Gao H, Yi Y, Yang J, Fu G, Zhou X, Zou Z. Nano Energy. 2016, 19: 17