An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density

The commonly-employed methylammonium-based perovskites are environmentally unstable, which limits their commercialization. To resolve this problem, a stable hybrid perovskite, pyrrolidinium lead iodide (PyPbI<sub>3</sub>), was synthesized successfully via a simple drop casting method. Th...

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Main Authors: Alex Fan Xu, Ryan Taoran Wang, Lory Wenjuan Yang, Elton Enchong Liu, Gu Xu
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/10/4/272
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author Alex Fan Xu
Ryan Taoran Wang
Lory Wenjuan Yang
Elton Enchong Liu
Gu Xu
author_facet Alex Fan Xu
Ryan Taoran Wang
Lory Wenjuan Yang
Elton Enchong Liu
Gu Xu
author_sort Alex Fan Xu
collection DOAJ
description The commonly-employed methylammonium-based perovskites are environmentally unstable, which limits their commercialization. To resolve this problem, a stable hybrid perovskite, pyrrolidinium lead iodide (PyPbI<sub>3</sub>), was synthesized successfully via a simple drop casting method. The formed PyPbI<sub>3</sub> exhibited a hexagonal structure. It presented not only excellent phase stability, but also low trap-state density, as confirmed via the X-ray diffraction and space-charge-limited currents measurements. This novel perovskite may be applicable to perovskite photovoltaics to improve their environmental stability.
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spelling doaj.art-c606a394e4e440c2a13f952997b31da42023-11-19T20:32:02ZengMDPI AGCrystals2073-43522020-04-0110427210.3390/cryst10040272An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State DensityAlex Fan Xu0Ryan Taoran Wang1Lory Wenjuan Yang2Elton Enchong Liu3Gu Xu4Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, CanadaDepartment of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, CanadaDepartment of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, CanadaDepartment of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, CanadaDepartment of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, CanadaThe commonly-employed methylammonium-based perovskites are environmentally unstable, which limits their commercialization. To resolve this problem, a stable hybrid perovskite, pyrrolidinium lead iodide (PyPbI<sub>3</sub>), was synthesized successfully via a simple drop casting method. The formed PyPbI<sub>3</sub> exhibited a hexagonal structure. It presented not only excellent phase stability, but also low trap-state density, as confirmed via the X-ray diffraction and space-charge-limited currents measurements. This novel perovskite may be applicable to perovskite photovoltaics to improve their environmental stability.https://www.mdpi.com/2073-4352/10/4/272pyrrolidinium lead iodideorganic–inorganic hybrid perovskiteenvironmental stabilitylow trap-state densityphase stabilityperovskite solar cell
spellingShingle Alex Fan Xu
Ryan Taoran Wang
Lory Wenjuan Yang
Elton Enchong Liu
Gu Xu
An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
Crystals
pyrrolidinium lead iodide
organic–inorganic hybrid perovskite
environmental stability
low trap-state density
phase stability
perovskite solar cell
title An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
title_full An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
title_fullStr An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
title_full_unstemmed An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
title_short An Environmentally Stable Organic–Inorganic Hybrid Perovskite Containing Py Cation with Low Trap-State Density
title_sort environmentally stable organic inorganic hybrid perovskite containing py cation with low trap state density
topic pyrrolidinium lead iodide
organic–inorganic hybrid perovskite
environmental stability
low trap-state density
phase stability
perovskite solar cell
url https://www.mdpi.com/2073-4352/10/4/272
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