Two-Dimensional Hybrid Halide Perovskites

Principles and Promises

Lingling Mao, Constantinos C. Stoumpos, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Hybrid halide perovskites have become the "next big thing" in emerging semiconductor materials, as the past decade witnessed their successful application in high-performance photovoltaics. This resurgence has encompassed enormous and widespread development of the three-dimensional (3D) perovskites, spearheaded by CH3NH3PbI3. The next generation of halide perovskites, however, is characterized by reduced dimensionality perovskites, emphasizing the two-dimensional (2D) perovskite derivatives which expand the field into a more diverse subgroup of semiconducting hybrids that possesses even higher tunability and excellent photophysical properties. In this Perspective, we begin with a historical flashback to early reports before the "perovskite fever", and we follow this original work to its fruition in the present day, where 2D halide perovskites are in the spotlight of current research, offering characteristics desirable in high-performance optoelectronics. We approach the evolution of 2D halide perovskites from a structural perspective, providing a way to classify the diverse structure types of the materials, which largely dictate the unusual physical properties observed. We sort the 2D hybrid halide perovskites on the basis of two key components: the inorganic layers and their modification, and the organic cation diversity. As these two heterogeneous components blend, either by synthetic manipulation (shuffling the organic cations or inorganic elements) or by application of external stimuli (temperature and pressure), the modular perovskite structure evolves to construct crystallographically defined quantum wells (QWs). The complex electronic structure that arises is sensitive to the structural features that could be in turn used as a knob to control the dielectric and optical properties the QWs. We conclude this Perspective with the most notable achievements in optoelectronic devices that have been demonstrated to date, with an eye toward future material discovery and potential technological developments.

Original languageEnglish
JournalJournal of the American Chemical Society
DOIs
Publication statusAccepted/In press - Jan 1 2018

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Perovskite
Optoelectronic devices
Semiconductor quantum wells
Cations
Positive ions
Knobs
Semiconductors
Dielectric properties
Electronic structure
Fever
Optical properties
Physical properties
Semiconductor materials
Derivatives
Pressure
Equipment and Supplies
Temperature
Research
perovskite

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Two-Dimensional Hybrid Halide Perovskites : Principles and Promises. / Mao, Lingling; Stoumpos, Constantinos C.; Kanatzidis, Mercouri G.

In: Journal of the American Chemical Society, 01.01.2018.

Research output: Contribution to journalArticle

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