Interaction of oxygen with halide perovskites
Alessandro Senocrate,Tolga Acartürk,Gee Yeong Kim,Rotraut Merkle,Ulrich Starke,Michael Grätzel,Michael Grätzel,Joachim Maier +7 more
TLDR
In this article, the consequences of exposing halide perovskites to an oxygen-containing atmosphere, in particular methylammonium lead iodide, was systematically investigated.Abstract:
We systematically investigate the consequences of exposing halide perovskites to an oxygen-containing atmosphere, in particular methylammonium lead iodide, the archetypal compound used as photo-absorber in perovskite solar cells. For this purpose, we study oxygen solubility and global reaction with oxygen both in the dark and under light, and we refer to the kinetics in terms of surface reaction and bulk diffusion. As thermodynamics reveals, the material is unstable against oxygen, primarily because of the large driving force of water formation. While under light the material quickly degrades, in the dark the surface reaction kinetics – not the bulk transport – is very sluggish and keeps it metastable. For the same reason, oxygen incorporation into the lattice is negligible in the dark. On illumination, an accelerated oxygen in-diffusion occurs (as shown by 18O incorporation experiments) that severely modifies the electronic and ionic conductivities in the way that is expected for an acceptor dopant. Lastly, we investigate the impact of cation as well as anion mixing on the degradation and stress the necessity of using encapsulation during solar cell operation.read more
Citations
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Verification and mitigation of ion migration in perovskite solar cells
TL;DR: In this paper, the authors reviewed important studies on discovery, quantification, and mitigation of the ion migration process in metal halide perovskite materials, and a possible emerging application using the ion migrations is also briefly introduced.
Journal ArticleDOI
Electrical doping in halide perovskites
TL;DR: In this paper, the authors discuss the underlying fundamentals of semiconductor doping and then investigate different doping strategies in halide perovskites, including intrinsic defect, extrinsic defect and charge transfer doping, from an experimental as well as a theoretical perspective.
Journal ArticleDOI
Pushing commercialization of perovskite solar cells by improving their intrinsic stability
Yuanhang Cheng,Liming Ding +1 more
TL;DR: In this article, the intrinsic stability of perovskite photovoltaic cells (PSCs) has been investigated, especially the stability related to the properties of the active materials.
Journal ArticleDOI
Halide Perovskites: A New Era of Solution-Processed Electronics.
Adnan Younis,Adnan Younis,Chun-Ho Lin,Xinwei Guan,Shamim Shahrokhi,Chien-Yu Huang,Yutao Wang,Tengyue He,Simrjit Singh,Long Hu,José Ramón Durán Retamal,Jr-Hau He,Tom Wu +12 more
TL;DR: A comprehensive up-to-date review is presented on hybrid perovskite electronics with a focus on transistors and memories, covering aspects of fabrication process, patterning techniques, contact engineering, 2D versus 3D material selection, and device performance.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
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Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
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Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%
Hui-Seon Kim,Chang-Ryul Lee,Jeong-Hyeok Im,Ki Beom Lee,Thomas Moehl,Arianna Marchioro,Soo-Jin Moon,Robin Humphry-Baker,Jun-Ho Yum,Jacques-E. Moser,Michael Grätzel,Nam-Gyu Park +11 more
TL;DR: The use of a solid hole conductor dramatically improved the device stability compared to (CH3NH3)PbI3 -sensitized liquid junction cells.
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Semiconducting tin and lead iodide perovskites with organic cations: phase transitions, high mobilities, and near-infrared photoluminescent properties.
TL;DR: It is found that the chemical and physical properties of these materials strongly depend on the preparation method, and the properties of the title hybrid materials with those of the "all-inorganic" CsSnI3 and CsPbI3 prepared using identical synthetic methods.
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Intrinsic Thermal Instability of Methylammonium Lead Trihalide Perovskite
Bert Conings,Jeroen Drijkoningen,Nicolas Gauquelin,Aslihan Babayigit,Jan D'Haen,Lien D'Olieslaeger,Anitha Ethirajan,Jo Verbeeck,Jean Manca,Edoardo Mosconi,Filippo De Angelis,Hans-Gerd Boyen +11 more
TL;DR: In this paper, it was demonstrated that significant decomposition effects already occur during annealing of a methylammonium lead triiode perovskite at 85 °C even in inert atmosphere, thus violating international standards.