Multichannel Interdiffusion Driven FASnI3 Film Formation Using Aqueous Hybrid Salt/Polymer Solutions toward Flexible Lead-Free Perovskite Solar Cells
Abstract
Tin (Sn)‐based perovskites are increasingly attractive because they offer lead‐free alternatives in perovskite solar cells. However, depositing high‐quality Sn‐based perovskite films is still a challenge, particularly for low‐temperature planar heterojunction (PHJ) devices. Here, a “multichannel interdiffusion” protocol is demonstrated by annealing stacked layers of aqueous solution deposited formamidinium iodide (FAI)/polymer layer followed with an evaporated SnI 2 layer to create uniform FASnI 3 films. In this protocol, tiny FAI crystals, significantly inhibited by the introduced polymer, can offer multiple interdiffusion pathways for complete reaction with SnI 2 . What is more, water, rather than traditional aprotic organic solvents, is used to dissolve the precursors. The best‐performing FASnI 3 PHJ solar cell assembled by this protocol exhibits a power conversion efficiency (PCE) of 3.98%. In addition, a flexible FASnI 3 ‐based flexible solar cell assembled on a polyethylene naphthalate–indium tin oxide flexible substrate with a PCE of 3.12% is demonstrated. This novel interdiffusion process can help to further boost the performance of lead‐free Sn‐based perovskites.
- Authors:
-
- Xi'an Jiaotong Univ. (China)
- Xi'an Jiaotong Univ. (China); Shanxi Univ. (China)
- Xi'an Jiaotong Univ. (China); Northwestern Univ., Evanston, IL (United States)
- Northwestern Univ., Evanston, IL (United States)
- Northwestern Univ., Evanston, IL (United States); Mitsubishi Chemical Group Science & Technology Research Center, Inc., Yokohama (Japan)
- Publication Date:
- Research Org.:
- Northwestern Univ., Evanston, IL (United States). Energy Frontier Research Center (EFRC) Argonne-Northwestern Solar Energy Research Center (ANSER)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); China Scholarship Council
- OSTI Identifier:
- 1470367
- Alternate Identifier(s):
- OSTI ID: 1401076
- Grant/Contract Number:
- SC0001059; DE‐SC0001059
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Advanced Materials
- Additional Journal Information:
- Journal Volume: 29; Journal Issue: 23; Related Information: ANSER partners with Northwestern University (lead); Argonne National Laboratory; University of Chicago; University of Illinois, Urbana-Champaign; Yale University; Journal ID: ISSN 0935-9648
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 14 SOLAR ENERGY; aqueous hybrid solutions; crystallization inhibitor; flexible devices; formamidinium tin iodide; multichannel interdiffusion
Citation Formats
Xi, Jun, Wu, Zhaoxin, Jiao, Bo, Dong, Hua, Ran, Chenxin, Piao, Chengcheng, Lei, Ting, Song, Tze-Bin, Ke, Weijun, Yokoyama, Takamichi, Hou, Xun, and Kanatzidis, Mercouri G. Multichannel Interdiffusion Driven FASnI3 Film Formation Using Aqueous Hybrid Salt/Polymer Solutions toward Flexible Lead-Free Perovskite Solar Cells. United States: N. p., 2017.
Web. doi:10.1002/adma.201606964.
Xi, Jun, Wu, Zhaoxin, Jiao, Bo, Dong, Hua, Ran, Chenxin, Piao, Chengcheng, Lei, Ting, Song, Tze-Bin, Ke, Weijun, Yokoyama, Takamichi, Hou, Xun, & Kanatzidis, Mercouri G. Multichannel Interdiffusion Driven FASnI3 Film Formation Using Aqueous Hybrid Salt/Polymer Solutions toward Flexible Lead-Free Perovskite Solar Cells. United States. https://doi.org/10.1002/adma.201606964
Xi, Jun, Wu, Zhaoxin, Jiao, Bo, Dong, Hua, Ran, Chenxin, Piao, Chengcheng, Lei, Ting, Song, Tze-Bin, Ke, Weijun, Yokoyama, Takamichi, Hou, Xun, and Kanatzidis, Mercouri G. 2017.
"Multichannel Interdiffusion Driven FASnI3 Film Formation Using Aqueous Hybrid Salt/Polymer Solutions toward Flexible Lead-Free Perovskite Solar Cells". United States. https://doi.org/10.1002/adma.201606964. https://www.osti.gov/servlets/purl/1470367.
@article{osti_1470367,
title = {Multichannel Interdiffusion Driven FASnI3 Film Formation Using Aqueous Hybrid Salt/Polymer Solutions toward Flexible Lead-Free Perovskite Solar Cells},
author = {Xi, Jun and Wu, Zhaoxin and Jiao, Bo and Dong, Hua and Ran, Chenxin and Piao, Chengcheng and Lei, Ting and Song, Tze-Bin and Ke, Weijun and Yokoyama, Takamichi and Hou, Xun and Kanatzidis, Mercouri G.},
abstractNote = {Tin (Sn)‐based perovskites are increasingly attractive because they offer lead‐free alternatives in perovskite solar cells. However, depositing high‐quality Sn‐based perovskite films is still a challenge, particularly for low‐temperature planar heterojunction (PHJ) devices. Here, a “multichannel interdiffusion” protocol is demonstrated by annealing stacked layers of aqueous solution deposited formamidinium iodide (FAI)/polymer layer followed with an evaporated SnI 2 layer to create uniform FASnI 3 films. In this protocol, tiny FAI crystals, significantly inhibited by the introduced polymer, can offer multiple interdiffusion pathways for complete reaction with SnI 2 . What is more, water, rather than traditional aprotic organic solvents, is used to dissolve the precursors. The best‐performing FASnI 3 PHJ solar cell assembled by this protocol exhibits a power conversion efficiency (PCE) of 3.98%. In addition, a flexible FASnI 3 ‐based flexible solar cell assembled on a polyethylene naphthalate–indium tin oxide flexible substrate with a PCE of 3.12% is demonstrated. This novel interdiffusion process can help to further boost the performance of lead‐free Sn‐based perovskites.},
doi = {10.1002/adma.201606964},
url = {https://www.osti.gov/biblio/1470367},
journal = {Advanced Materials},
issn = {0935-9648},
number = 23,
volume = 29,
place = {United States},
year = {Tue Apr 11 00:00:00 EDT 2017},
month = {Tue Apr 11 00:00:00 EDT 2017}
}
Web of Science
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