Cation engineering on lead iodide perovskites for stable and high-performance photovoltaic applications

Jue Gong, Peijun Guo, Savannah E. Benjamin, P. Gregory Van Patten, Richard D Schaller, Tao Xu

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

Perovskite solar cells (PSCs) based on methylammonium lead iodide (CH3NH3PbI3) have shown unprecedentedly outstanding performance in the recent years. Nevertheless, due to the weak interaction between polar CH3NH3 + (MA+) and inorganic PbI3 sublattices, CH3NH3PbI3 dramatically suffers from poor moisture stability, thermal decomposition and device hysteresis. As such, strong electrostatic interactions between cations and anionic frameworks are desired for synergistic improvements of the abovementioned issues. While replacements of I with Br and/or Cl evidently widen optical bandgaps of perovskite materials, compositional modifications can solely be applied on cation components in order to preserve the broad absorption of solar spectrum. Herein, we review the current successful practices in achieving efficient, stable and minimally hysteretic PSCs with lead iodide perovskite systems that employ photoactive cesium lead iodide (CsPbI3), formamidinium lead iodide (HC(NH2)2PbI3, or FAPbI3), MA1− x y zFAxCsyRbzPbI3 mixed-cation settings as well as two-dimensional butylammonium (C4H9NH3 +, or BA+)/MA+, polymeric ammonium (PEI+)/MA+ co-cation layered structures. Fundamental aspects behind the stabilization of perovskite phases α-CsPbI3, α-FAPbI3, mixed-cation MA1 x y zFAxCsyRbzPbI3 and crystallographic alignment of (BA)2(MA)3Pb4I13 for effective light absorption and charge transport will be discussed. This review will contribute to the continuous development of photovoltaic technology based on PSCs.

Original languageEnglish
Pages (from-to)1017-1039
Number of pages23
JournalJournal of Energy Chemistry
Volume27
Issue number4
DOIs
Publication statusPublished - Jul 1 2018

Fingerprint

Iodides
Cations
Lead
Positive ions
Perovskite
Cesium
Polyetherimides
Optical band gaps
Coulomb interactions
Ammonium Compounds
Light absorption
Hysteresis
Charge transfer
Pyrolysis
Moisture
Stabilization
Perovskite solar cells
perovskite

Keywords

  • Device hysteresis
  • Metastable phases
  • Optical bandgaps
  • Perovskite solar cells
  • Power conversion efficiency
  • Solar energy conversion

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Electrochemistry

Cite this

Cation engineering on lead iodide perovskites for stable and high-performance photovoltaic applications. / Gong, Jue; Guo, Peijun; Benjamin, Savannah E.; Van Patten, P. Gregory; Schaller, Richard D; Xu, Tao.

In: Journal of Energy Chemistry, Vol. 27, No. 4, 01.07.2018, p. 1017-1039.

Research output: Contribution to journalReview article

Gong, Jue ; Guo, Peijun ; Benjamin, Savannah E. ; Van Patten, P. Gregory ; Schaller, Richard D ; Xu, Tao. / Cation engineering on lead iodide perovskites for stable and high-performance photovoltaic applications. In: Journal of Energy Chemistry. 2018 ; Vol. 27, No. 4. pp. 1017-1039.
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AU - Gong, Jue

AU - Guo, Peijun

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AU - Van Patten, P. Gregory

AU - Schaller, Richard D

AU - Xu, Tao

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AB - Perovskite solar cells (PSCs) based on methylammonium lead iodide (CH3NH3PbI3) have shown unprecedentedly outstanding performance in the recent years. Nevertheless, due to the weak interaction between polar CH3NH3 + (MA+) and inorganic PbI3 − sublattices, CH3NH3PbI3 dramatically suffers from poor moisture stability, thermal decomposition and device hysteresis. As such, strong electrostatic interactions between cations and anionic frameworks are desired for synergistic improvements of the abovementioned issues. While replacements of I− with Br− and/or Cl− evidently widen optical bandgaps of perovskite materials, compositional modifications can solely be applied on cation components in order to preserve the broad absorption of solar spectrum. Herein, we review the current successful practices in achieving efficient, stable and minimally hysteretic PSCs with lead iodide perovskite systems that employ photoactive cesium lead iodide (CsPbI3), formamidinium lead iodide (HC(NH2)2PbI3, or FAPbI3), MA1− x − y − zFAxCsyRbzPbI3 mixed-cation settings as well as two-dimensional butylammonium (C4H9NH3 +, or BA+)/MA+, polymeric ammonium (PEI+)/MA+ co-cation layered structures. Fundamental aspects behind the stabilization of perovskite phases α-CsPbI3, α-FAPbI3, mixed-cation MA1 − x − y − zFAxCsyRbzPbI3 and crystallographic alignment of (BA)2(MA)3Pb4I13 for effective light absorption and charge transport will be discussed. This review will contribute to the continuous development of photovoltaic technology based on PSCs.

KW - Device hysteresis

KW - Metastable phases

KW - Optical bandgaps

KW - Perovskite solar cells

KW - Power conversion efficiency

KW - Solar energy conversion

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