Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability

Yingxia Zong, Yuanyuan Zhou, Yi Zhang, Zhipeng Li, Lin Zhang, Ming Gang Ju, Min Chen, Shuping Pang, Xiao C Zeng, Nitin P. Padture

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Here, we sucessfully demonstrate the continuous functionalization of grain boundaries (GBs) in CH3NH3PbI3 (MAPbI3) organic-inorganic halide perovskite (OIHP) thin films with a triblock copolymer that contains rationally selected hydrophilic-hydrophobic-hydrophilic symmetric blocks. The addition of the triblock copolymer into the precursor solution assists in perovskite solution crystallization, resulting in ultrasmooth thin films with GB regions that are continuously functionalized. Tuning of the thickness of the functionalized GBs is realized, leading to MAPbI3 OIHP thin films with simultaneously enhanced optoelectronic properties and environmental (thermal, moisture, and light) stability. The resulting perovskite solar cells show high stabilized efficiency of 19.4%, most of which is retained (92%) upon 480-hr 1-sun illumination. This approach is generic in nature, and it can be extended to a wide range of OIHPs and beyond. Organic-inorganic halide perovskites (OIHPs) are a family of crystalline semiconducting materials that are revolutionizing the field of photovoltaics. The grain boundary (GB) is the most prominent microstructural feature in solution-processed polycrystalline OIHP thin films, and GB chemistry plays a key role in achieving efficient stable perovskite solar cells (PSCs). In this study, we demonstrate the continuous chemical functionalization of GBs in OIHP thin films by using a triblock copolymer that exhibits both hydrophilicity and hydrophobicity. This chemical approach significantly boosts the optoelectronic properties and stability of the OIHP thin films, leading to PSCs with 19.4% efficiency and exceptional stability. The concept of continuous GB functionalization is generic, and it is applicable to a broad range of OIHPs and other polycrystalline materials, representing a new direction in the development of high-performance PSCs and other optoelectronic devices. Grain boundaries in polycrystalline thin films of hybrid perovskites can play a key role in determining the performance and stability of perovskite solar cells. Here, we demonstrate the controlled, continuous grain-boundary functionalization of hybrid perovskite thin films with a rationally selected triblock copolymer with dual hydrophobic-hydrophilic functionalities. This unique grain-boundary structure is responsible for the enhanced optoelectronic properties and environmental stability of these thin films. We also show that the resulting perovskite solar cells are highly efficient and stable.

Original languageEnglish (US)
Pages (from-to)1404-1415
Number of pages12
JournalChem
Volume4
Issue number6
DOIs
StatePublished - Jun 14 2018

Fingerprint

perovskite
grain boundary
Grain boundaries
halide
Perovskite
Thin films
Optoelectronic devices
Block copolymers
Hydrophobic and Hydrophilic Interactions
Perovskite solar cells
solar cell
Polycrystalline materials
Hydrophilicity
Hydrophobicity
Crystallization
Sun
Solar System
hydrophobicity
Moisture
Lighting

Keywords

  • efficiency
  • functionalization
  • grain boundary
  • perovskite
  • solar cells
  • stability
  • thin films
  • triblock copolymer

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Biochemistry, medical
  • Materials Chemistry

Cite this

Zong, Y., Zhou, Y., Zhang, Y., Li, Z., Zhang, L., Ju, M. G., ... Padture, N. P. (2018). Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability. Chem, 4(6), 1404-1415. https://doi.org/10.1016/j.chempr.2018.03.005

Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability. / Zong, Yingxia; Zhou, Yuanyuan; Zhang, Yi; Li, Zhipeng; Zhang, Lin; Ju, Ming Gang; Chen, Min; Pang, Shuping; Zeng, Xiao C; Padture, Nitin P.

In: Chem, Vol. 4, No. 6, 14.06.2018, p. 1404-1415.

Research output: Contribution to journalArticle

Zong, Y, Zhou, Y, Zhang, Y, Li, Z, Zhang, L, Ju, MG, Chen, M, Pang, S, Zeng, XC & Padture, NP 2018, 'Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability', Chem, vol. 4, no. 6, pp. 1404-1415. https://doi.org/10.1016/j.chempr.2018.03.005
Zong, Yingxia ; Zhou, Yuanyuan ; Zhang, Yi ; Li, Zhipeng ; Zhang, Lin ; Ju, Ming Gang ; Chen, Min ; Pang, Shuping ; Zeng, Xiao C ; Padture, Nitin P. / Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability. In: Chem. 2018 ; Vol. 4, No. 6. pp. 1404-1415.
@article{9dd96c9bb5684d55924c3aa078afc95b,
title = "Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability",
abstract = "Here, we sucessfully demonstrate the continuous functionalization of grain boundaries (GBs) in CH3NH3PbI3 (MAPbI3) organic-inorganic halide perovskite (OIHP) thin films with a triblock copolymer that contains rationally selected hydrophilic-hydrophobic-hydrophilic symmetric blocks. The addition of the triblock copolymer into the precursor solution assists in perovskite solution crystallization, resulting in ultrasmooth thin films with GB regions that are continuously functionalized. Tuning of the thickness of the functionalized GBs is realized, leading to MAPbI3 OIHP thin films with simultaneously enhanced optoelectronic properties and environmental (thermal, moisture, and light) stability. The resulting perovskite solar cells show high stabilized efficiency of 19.4{\%}, most of which is retained (92{\%}) upon 480-hr 1-sun illumination. This approach is generic in nature, and it can be extended to a wide range of OIHPs and beyond. Organic-inorganic halide perovskites (OIHPs) are a family of crystalline semiconducting materials that are revolutionizing the field of photovoltaics. The grain boundary (GB) is the most prominent microstructural feature in solution-processed polycrystalline OIHP thin films, and GB chemistry plays a key role in achieving efficient stable perovskite solar cells (PSCs). In this study, we demonstrate the continuous chemical functionalization of GBs in OIHP thin films by using a triblock copolymer that exhibits both hydrophilicity and hydrophobicity. This chemical approach significantly boosts the optoelectronic properties and stability of the OIHP thin films, leading to PSCs with 19.4{\%} efficiency and exceptional stability. The concept of continuous GB functionalization is generic, and it is applicable to a broad range of OIHPs and other polycrystalline materials, representing a new direction in the development of high-performance PSCs and other optoelectronic devices. Grain boundaries in polycrystalline thin films of hybrid perovskites can play a key role in determining the performance and stability of perovskite solar cells. Here, we demonstrate the controlled, continuous grain-boundary functionalization of hybrid perovskite thin films with a rationally selected triblock copolymer with dual hydrophobic-hydrophilic functionalities. This unique grain-boundary structure is responsible for the enhanced optoelectronic properties and environmental stability of these thin films. We also show that the resulting perovskite solar cells are highly efficient and stable.",
keywords = "efficiency, functionalization, grain boundary, perovskite, solar cells, stability, thin films, triblock copolymer",
author = "Yingxia Zong and Yuanyuan Zhou and Yi Zhang and Zhipeng Li and Lin Zhang and Ju, {Ming Gang} and Min Chen and Shuping Pang and Zeng, {Xiao C} and Padture, {Nitin P.}",
year = "2018",
month = "6",
day = "14",
doi = "10.1016/j.chempr.2018.03.005",
language = "English (US)",
volume = "4",
pages = "1404--1415",
journal = "Chem",
issn = "2451-9294",
publisher = "Elsevier Inc.",
number = "6",

}

TY - JOUR

T1 - Continuous Grain-Boundary Functionalization for High-Efficiency Perovskite Solar Cells with Exceptional Stability

AU - Zong, Yingxia

AU - Zhou, Yuanyuan

AU - Zhang, Yi

AU - Li, Zhipeng

AU - Zhang, Lin

AU - Ju, Ming Gang

AU - Chen, Min

AU - Pang, Shuping

AU - Zeng, Xiao C

AU - Padture, Nitin P.

PY - 2018/6/14

Y1 - 2018/6/14

N2 - Here, we sucessfully demonstrate the continuous functionalization of grain boundaries (GBs) in CH3NH3PbI3 (MAPbI3) organic-inorganic halide perovskite (OIHP) thin films with a triblock copolymer that contains rationally selected hydrophilic-hydrophobic-hydrophilic symmetric blocks. The addition of the triblock copolymer into the precursor solution assists in perovskite solution crystallization, resulting in ultrasmooth thin films with GB regions that are continuously functionalized. Tuning of the thickness of the functionalized GBs is realized, leading to MAPbI3 OIHP thin films with simultaneously enhanced optoelectronic properties and environmental (thermal, moisture, and light) stability. The resulting perovskite solar cells show high stabilized efficiency of 19.4%, most of which is retained (92%) upon 480-hr 1-sun illumination. This approach is generic in nature, and it can be extended to a wide range of OIHPs and beyond. Organic-inorganic halide perovskites (OIHPs) are a family of crystalline semiconducting materials that are revolutionizing the field of photovoltaics. The grain boundary (GB) is the most prominent microstructural feature in solution-processed polycrystalline OIHP thin films, and GB chemistry plays a key role in achieving efficient stable perovskite solar cells (PSCs). In this study, we demonstrate the continuous chemical functionalization of GBs in OIHP thin films by using a triblock copolymer that exhibits both hydrophilicity and hydrophobicity. This chemical approach significantly boosts the optoelectronic properties and stability of the OIHP thin films, leading to PSCs with 19.4% efficiency and exceptional stability. The concept of continuous GB functionalization is generic, and it is applicable to a broad range of OIHPs and other polycrystalline materials, representing a new direction in the development of high-performance PSCs and other optoelectronic devices. Grain boundaries in polycrystalline thin films of hybrid perovskites can play a key role in determining the performance and stability of perovskite solar cells. Here, we demonstrate the controlled, continuous grain-boundary functionalization of hybrid perovskite thin films with a rationally selected triblock copolymer with dual hydrophobic-hydrophilic functionalities. This unique grain-boundary structure is responsible for the enhanced optoelectronic properties and environmental stability of these thin films. We also show that the resulting perovskite solar cells are highly efficient and stable.

AB - Here, we sucessfully demonstrate the continuous functionalization of grain boundaries (GBs) in CH3NH3PbI3 (MAPbI3) organic-inorganic halide perovskite (OIHP) thin films with a triblock copolymer that contains rationally selected hydrophilic-hydrophobic-hydrophilic symmetric blocks. The addition of the triblock copolymer into the precursor solution assists in perovskite solution crystallization, resulting in ultrasmooth thin films with GB regions that are continuously functionalized. Tuning of the thickness of the functionalized GBs is realized, leading to MAPbI3 OIHP thin films with simultaneously enhanced optoelectronic properties and environmental (thermal, moisture, and light) stability. The resulting perovskite solar cells show high stabilized efficiency of 19.4%, most of which is retained (92%) upon 480-hr 1-sun illumination. This approach is generic in nature, and it can be extended to a wide range of OIHPs and beyond. Organic-inorganic halide perovskites (OIHPs) are a family of crystalline semiconducting materials that are revolutionizing the field of photovoltaics. The grain boundary (GB) is the most prominent microstructural feature in solution-processed polycrystalline OIHP thin films, and GB chemistry plays a key role in achieving efficient stable perovskite solar cells (PSCs). In this study, we demonstrate the continuous chemical functionalization of GBs in OIHP thin films by using a triblock copolymer that exhibits both hydrophilicity and hydrophobicity. This chemical approach significantly boosts the optoelectronic properties and stability of the OIHP thin films, leading to PSCs with 19.4% efficiency and exceptional stability. The concept of continuous GB functionalization is generic, and it is applicable to a broad range of OIHPs and other polycrystalline materials, representing a new direction in the development of high-performance PSCs and other optoelectronic devices. Grain boundaries in polycrystalline thin films of hybrid perovskites can play a key role in determining the performance and stability of perovskite solar cells. Here, we demonstrate the controlled, continuous grain-boundary functionalization of hybrid perovskite thin films with a rationally selected triblock copolymer with dual hydrophobic-hydrophilic functionalities. This unique grain-boundary structure is responsible for the enhanced optoelectronic properties and environmental stability of these thin films. We also show that the resulting perovskite solar cells are highly efficient and stable.

KW - efficiency

KW - functionalization

KW - grain boundary

KW - perovskite

KW - solar cells

KW - stability

KW - thin films

KW - triblock copolymer

UR - http://www.scopus.com/inward/record.url?scp=85045329574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045329574&partnerID=8YFLogxK

U2 - 10.1016/j.chempr.2018.03.005

DO - 10.1016/j.chempr.2018.03.005

M3 - Article

VL - 4

SP - 1404

EP - 1415

JO - Chem

JF - Chem

SN - 2451-9294

IS - 6

ER -