Journal ArticleDOI
Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process
Qi Chen,Huanping Zhou,Ziruo Hong,Song Luo,Hsin Sheng Duan,Hsin-Hua Wang,Yongsheng Liu,Gang Li,Yang Yang +8 more
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TLDR
A low-temperature vapor-assisted solution process is demonstrated to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale, paving the way for high reproducibility of films and devices.Abstract:
Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic parameters regarding the perovskite film growth are discussed as well.read more
Citations
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Facile preparation of organometallic perovskite films and high-efficiency solar cells using solid-state chemistry
TL;DR: In this article, solid-state precursors of CH3NH3I and PbI2 are brought into contact with each other and allowed to react via thermally accelerated diffusion.
Journal ArticleDOI
Van der Waals Integration of Bismuth Quantum Dots-Decorated Tellurium Nanotubes (Te@Bi) Heterojunctions and Plasma-Enhanced Optoelectronic Applications.
Ye Zhang,Feng Zhang,Leiming Wu,Yupeng Zhang,Weichun Huang,Yanfeng Tang,Lanping Hu,Pu Huang,Xiuwen Zhang,Han Zhang +9 more
TL;DR: Transient absorption spectroscopy suggests that Te@Bi vdWH is a promising candidate for new-generation optoelectronic devices with fast response properties and the proposed integration of vd WHs is expected to pave the way for constructing new nanoscale heterodevices.
Journal ArticleDOI
Controlled defects and enhanced electronic extraction in fluorine-incorporated zinc oxide for high-performance planar perovskite solar cells
TL;DR: In this paper, the impact of fluorine concentration on the structural, electrical, and optical characteristics of solution-processed zinc oxide (ZnO) films was systematically investigated, and a fluorine-doped ZnO film exhibited multiple advantageous effects, such as large crystalline size, low oxygen-related defect state density, good hydrophobic surface, and high conductivity.
Journal ArticleDOI
Perovskite sensitized solar cell using solid polymer electrolyte
TL;DR: In this article, a perovskite sensitized solar cell (PSSC) consisting of ethyl ammonium tri-lead iodide (CH 3 CH 2 NH 3 PbI 3 ) and solid polymer electrolyte has been successfully fabricated and reported.
Journal ArticleDOI
Coordination engineering toward high performance organic–inorganic hybrid perovskites
Xin Guo,Clemens Burda +1 more
TL;DR: In this article, the coordination sphere of group IV transition metals allows to tune the structure and properties of organic-inorganic hybrid perovskite materials and offer an overview of the preparation of organic inorganic hybrid materials.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
Journal ArticleDOI
Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber.
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this article, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
Journal ArticleDOI
Efficient planar heterojunction perovskite solar cells by vapour deposition
TL;DR: It is shown that perovskite absorbers can function at the highest efficiencies in simplified device architectures, without the need for complex nanostructures.