Influence of halide precursor type and its composition on the electronic properties of vacuum deposited perovskite films

Physical Chemistry Chemical Physics : PCCP
Tae Gun KimJeong Won Kim

Abstract

We fabricate mixed halide perovskite films through dual-source vacuum deposition of PbX2 (X = Cl, Br, and I) and methyl ammonium iodide (MAI) precursors with various deposition ratios. Vacuum deposition is an optimal way for film fabrication because it gives a uniform perovskite film which is free from contamination such as metallic phase lead, residual solvent, and moisture. The ionization potential and bandgap of MAPb(I1-yBry)3 film are controlled by changing the halide composition and lattice constant. In contrast, MAPb(I1-yCly)3 film shows negligible difference from MAPbI3 in terms of structural and electronic properties, which is due to poor Cl incorporation in the film from the MACl removal during crystal formation. An excess supply of MAI is necessary to form a perovskite crystal structure. Based on the elemental stoichiometry analysis, the additional methyl ammonium cation with respect to Pb in the film plays a critical role in changing the electron affinity and energy level alignment.

References

Oct 10, 2012·Journal of the American Chemical Society·Lioz EtgarMichael Grätzel
Jun 19, 2013·Advanced Materials·Jun-Yuan JengTen-Chin Wen
Sep 1, 2014·Nature Nanotechnology·Jeong-Hyeok ImNam-Gyu Park
Nov 8, 2014·Scientific Reports·Ye-Jin JeonDong-Yu Kim
May 15, 2014·The Journal of Physical Chemistry Letters·Belen SuarezIvan Mora-Sero
Feb 20, 2014·The Journal of Physical Chemistry Letters·Rebecka LindbladHåkan Rensmo
Aug 19, 2015·The Journal of Physical Chemistry Letters·Giulia GranciniAnnamaria Petrozza
Aug 19, 2015·The Journal of Physical Chemistry Letters·Emilio J Juarez-PerezJuan Bisquert

❮ Previous
Next ❯

Citations

Feb 26, 2016·Physical Chemistry Chemical Physics : PCCP·Hao TianXiao-Yu Kuang
Jul 1, 2016·Proceedings of the National Academy of Sciences of the United States of America·G P NagabhushanaAlexandra Navrotsky
Feb 9, 2017·ACS Applied Materials & Interfaces·Jérémy BarbéSilvano Del Gobbo
Apr 28, 2018·Advanced Materials·Zheni N GeorgievaDavid H Waldeck
Jun 14, 2019·Nature Communications·Shuxia TaoSelina Olthof
Jun 18, 2021·Nano-micro Letters·Minghao WangWei Huang
Aug 17, 2018·ACS Applied Materials & Interfaces·Yinghuan KuangMariadriana Creatore
Mar 2, 2019·Chemical Reviews·Philip SchulzAntoine Kahn

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.