Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells

Haizhou Lu; Yuhang Liu; Paramvir Ahlawat; Aditya Mishra; Wolfgang R. Tress; Felix T. Eickemeyer; Yingguo Yang; Fan Fu; Zaiwei Wang; Claudia E. Avalos; Brian I. Carlsen; Anand Agarwalla; Xin Zhang; Xiaoguo Li; Yiqiang Zhan; Shaik M. Zakeeruddin; Lyndon Emsley; Ursula Rothlisberger; Lirong Zheng; Anders Hagfeldt; Michael Grätzel

doi:10.1126/science.abb8985

Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells

Haizhou Lu
, Yuhang Liu
, Paramvir Ahlawat
, Aditya Mishra
, Wolfgang R. Tress
, Felix T. Eickemeyer
, Yingguo Yang
, Fan Fu
, Zaiwei Wang
, Claudia E. Avalos
, Brian I. Carlsen
, Anand Agarwalla
, Xin Zhang
, Xiaoguo Li
, Yiqiang Zhan
, Shaik M. Zakeeruddin
, Lyndon Emsley
, Ursula Rothlisberger
, Lirong Zheng
, Anders Hagfeldt

Michael Grätzel

Swiss Federal Institute of Technology Lausanne
CAS - Shanghai Advanced Research Institute
Swiss Federal Laboratories for Materials Science and Technology (Empa)
Fudan University

Research output: Contribution to journal › Article › peer-review

614 Scopus citations

Abstract

Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We report a deposition method using MA thiocyanate (MASCN) or FASCN vapor treatment to convert yellow d-FAPbI3 perovskite films to the desired pure a-phase. NMR quantifies MA incorporation into the framework. Molecular dynamics simulations show that SCN- anions promote the formation and stabilization of a-FAPbI3 below the thermodynamic phase-transition temperature. We used these low-defect-density a-FAPbI3 films to make PSCs with >23% power-conversion efficiency and long-term operational and thermal stability, as well as a low (330 millivolts) open-circuit voltage loss and a low (0.75 volt) turn-on voltage of electroluminescence.

Original language	English
Article number	eabb8985
Journal	Science
Volume	370
Issue number	6512
DOIs	https://doi.org/10.1126/science.abb8985
State	Published - 2 Oct 2020
Externally published	Yes

Access to Document

10.1126/science.abb8985

Cite this

Lu, H., Liu, Y., Ahlawat, P., Mishra, A., Tress, W. R., Eickemeyer, F. T., Yang, Y., Fu, F., Wang, Z., Avalos, C. E., Carlsen, B. I., Agarwalla, A., Zhang, X., Li, X., Zhan, Y., Zakeeruddin, S. M., Emsley, L., Rothlisberger, U., Zheng, L., ... Grätzel, M. (2020). Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells. Science, 370(6512), Article eabb8985. https://doi.org/10.1126/science.abb8985

@article{95553a2a63474fb6aae976a3dee584fb,

title = "Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells",

abstract = "Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We report a deposition method using MA thiocyanate (MASCN) or FASCN vapor treatment to convert yellow d-FAPbI3 perovskite films to the desired pure a-phase. NMR quantifies MA incorporation into the framework. Molecular dynamics simulations show that SCN- anions promote the formation and stabilization of a-FAPbI3 below the thermodynamic phase-transition temperature. We used these low-defect-density a-FAPbI3 films to make PSCs with >23\% power-conversion efficiency and long-term operational and thermal stability, as well as a low (330 millivolts) open-circuit voltage loss and a low (0.75 volt) turn-on voltage of electroluminescence.",

author = "Haizhou Lu and Yuhang Liu and Paramvir Ahlawat and Aditya Mishra and Tress, \{Wolfgang R.\} and Eickemeyer, \{Felix T.\} and Yingguo Yang and Fan Fu and Zaiwei Wang and Avalos, \{Claudia E.\} and Carlsen, \{Brian I.\} and Anand Agarwalla and Xin Zhang and Xiaoguo Li and Yiqiang Zhan and Zakeeruddin, \{Shaik M.\} and Lyndon Emsley and Ursula Rothlisberger and Lirong Zheng and Anders Hagfeldt and Michael Gr{\"a}tzel",

year = "2020",

month = oct,

day = "2",

doi = "10.1126/science.abb8985",

language = "英语",

volume = "370",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6512",

}

Lu, H, Liu, Y, Ahlawat, P, Mishra, A, Tress, WR, Eickemeyer, FT, Yang, Y, Fu, F, Wang, Z, Avalos, CE, Carlsen, BI, Agarwalla, A, Zhang, X, Li, X, Zhan, Y, Zakeeruddin, SM, Emsley, L, Rothlisberger, U, Zheng, L, Hagfeldt, A & Grätzel, M 2020, 'Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells', Science, vol. 370, no. 6512, eabb8985. https://doi.org/10.1126/science.abb8985

TY - JOUR

T1 - Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells

AU - Lu, Haizhou

AU - Liu, Yuhang

AU - Ahlawat, Paramvir

AU - Mishra, Aditya

AU - Tress, Wolfgang R.

AU - Eickemeyer, Felix T.

AU - Yang, Yingguo

AU - Fu, Fan

AU - Wang, Zaiwei

AU - Avalos, Claudia E.

AU - Carlsen, Brian I.

AU - Agarwalla, Anand

AU - Zhang, Xin

AU - Li, Xiaoguo

AU - Zhan, Yiqiang

AU - Zakeeruddin, Shaik M.

AU - Emsley, Lyndon

AU - Rothlisberger, Ursula

AU - Zheng, Lirong

AU - Hagfeldt, Anders

AU - Grätzel, Michael

PY - 2020/10/2

Y1 - 2020/10/2

N2 - Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We report a deposition method using MA thiocyanate (MASCN) or FASCN vapor treatment to convert yellow d-FAPbI3 perovskite films to the desired pure a-phase. NMR quantifies MA incorporation into the framework. Molecular dynamics simulations show that SCN- anions promote the formation and stabilization of a-FAPbI3 below the thermodynamic phase-transition temperature. We used these low-defect-density a-FAPbI3 films to make PSCs with >23% power-conversion efficiency and long-term operational and thermal stability, as well as a low (330 millivolts) open-circuit voltage loss and a low (0.75 volt) turn-on voltage of electroluminescence.

AB - Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We report a deposition method using MA thiocyanate (MASCN) or FASCN vapor treatment to convert yellow d-FAPbI3 perovskite films to the desired pure a-phase. NMR quantifies MA incorporation into the framework. Molecular dynamics simulations show that SCN- anions promote the formation and stabilization of a-FAPbI3 below the thermodynamic phase-transition temperature. We used these low-defect-density a-FAPbI3 films to make PSCs with >23% power-conversion efficiency and long-term operational and thermal stability, as well as a low (330 millivolts) open-circuit voltage loss and a low (0.75 volt) turn-on voltage of electroluminescence.

UR - https://www.scopus.com/pages/publications/85092493801

U2 - 10.1126/science.abb8985

DO - 10.1126/science.abb8985

M3 - 文章

C2 - 33004488

AN - SCOPUS:85092493801

SN - 0036-8075

VL - 370

JO - Science

JF - Science

IS - 6512

M1 - eabb8985

ER -

Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells

Abstract

Access to Document

Other files and links

Fingerprint

Cite this