Atomically thin two-dimensional Organic-inorganic hybrid perovskites

Letian Dou; Andrew B. Wong; Yi Yu; Minliang Lai; Nikolay Kornienko; Samuel W. Eaton; Anthony Fu; Connor G. Bischak; Jie Ma; Tina Ding; Naomi S. Ginsberg; Lin Wang Wang; A. Paul Alivisatos; Peidong Yang

doi:10.1126/science.aac7660

Atomically thin two-dimensional Organic-inorganic hybrid perovskites

Letian Dou, Andrew B. Wong, Yi Yu, Minliang Lai, Nikolay Kornienko, Samuel W. Eaton, Anthony Fu, Connor G. Bischak, Jie Ma, Tina Ding, Naomi S. Ginsberg, Lin Wang Wang, A. Paul Alivisatos, Peidong Yang^*

^*Corresponding author for this work

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

1248 Citations (Scopus)

Abstract

Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets.We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C₄H₉NH₃)₂PbBr₄ with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal.The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via the synthesis of related materials.

Original language	English
Pages (from-to)	1518-1521
Number of pages	4
Journal	Science
Volume	349
Issue number	6255
DOIs	https://doi.org/10.1126/science.aac7660
Publication status	Published - 25 Sept 2015
Externally published	Yes

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title = "Atomically thin two-dimensional Organic-inorganic hybrid perovskites",

abstract = "Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets.We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C4H9NH3)2PbBr4 with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal.The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via the synthesis of related materials.",

author = "Letian Dou and Wong, \{Andrew B.\} and Yi Yu and Minliang Lai and Nikolay Kornienko and Eaton, \{Samuel W.\} and Anthony Fu and Bischak, \{Connor G.\} and Jie Ma and Tina Ding and Ginsberg, \{Naomi S.\} and Wang, \{Lin Wang\} and Alivisatos, \{A. Paul\} and Peidong Yang",

year = "2015",

month = sep,

day = "25",

doi = "10.1126/science.aac7660",

language = "English",

volume = "349",

pages = "1518--1521",

journal = "Science",

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TY - JOUR

T1 - Atomically thin two-dimensional Organic-inorganic hybrid perovskites

AU - Dou, Letian

AU - Wong, Andrew B.

AU - Yu, Yi

AU - Lai, Minliang

AU - Kornienko, Nikolay

AU - Eaton, Samuel W.

AU - Fu, Anthony

AU - Bischak, Connor G.

AU - Ma, Jie

AU - Ding, Tina

AU - Ginsberg, Naomi S.

AU - Wang, Lin Wang

AU - Alivisatos, A. Paul

AU - Yang, Peidong

PY - 2015/9/25

Y1 - 2015/9/25

N2 - Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets.We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C4H9NH3)2PbBr4 with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal.The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via the synthesis of related materials.

AB - Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets.We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C4H9NH3)2PbBr4 with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal.The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via the synthesis of related materials.

UR - https://www.scopus.com/pages/publications/84942437052

U2 - 10.1126/science.aac7660

DO - 10.1126/science.aac7660

M3 - Article

AN - SCOPUS:84942437052

SN - 0036-8075

VL - 349

SP - 1518

EP - 1521

JO - Science

JF - Science

IS - 6255

ER -

Atomically thin two-dimensional Organic-inorganic hybrid perovskites

Abstract

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