Journal ArticleDOI
Interface engineering of highly efficient perovskite solar cells
Huanping Zhou,Qi Chen,Gang Li,Song Luo,Tze Bing Song,Hsin Sheng Duan,Ziruo Hong,Jingbi You,Yongsheng Liu,Yang Yang +9 more
TLDR
Perovskite films received a boost in photovoltaic efficiency through controlled formation of charge-generating films and improved current transfer to the electrodes and low-temperature processing steps allowed the use of materials that draw current out of the perovskites layer more efficiently.Abstract:
Advancing perovskite solar cell technologies toward their theoretical power conversion efficiency (PCE) requires delicate control over the carrier dynamics throughout the entire device. By controlling the formation of the perovskite layer and careful choices of other materials, we suppressed carrier recombination in the absorber, facilitated carrier injection into the carrier transport layers, and maintained good carrier extraction at the electrodes. When measured via reverse bias scan, cell PCE is typically boosted to 16.6% on average, with the highest efficiency of ~19.3% in a planar geometry without antireflective coating. The fabrication of our perovskite solar cells was conducted in air and from solution at low temperatures, which should simplify manufacturing of large-area perovskite devices that are inexpensive and perform at high levels.read more
Citations
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Journal ArticleDOI
Alloying and Defect Control within Chalcogenide Perovskites for Optimized Photovoltaic Application
Weiwei Meng,Weiwei Meng,Bayrammurad Saparov,Feng Hong,Feng Hong,Jianbo Wang,David B. Mitzi,Yanfa Yan +7 more
TL;DR: In this paper, the authors show that the alloy perovskite system BaZr1-xTixS3 (x 0) may not be stable under thermal equilibrium growth conditions.
Journal ArticleDOI
Inkjet manipulated homogeneous large size perovskite grains for efficient and large-area perovskite solar cells
Pengwei Li,Pengwei Li,Chao Liang,Bin Bao,Yanan Li,Xiaotian Hu,Yang Wang,Yiqiang Zhang,Fengyu Li,Guosheng Shao,Yanlin Song +10 more
TL;DR: In this paper, an inkjet manipulated approach is introduced for controlling the thin-film perovskite growth in a mesoporous solar cell device structure, where uniform liquid membrane was obtained via precisely controlled micro-droplets by inkjet-printing.
Journal ArticleDOI
Perovskite Sr-Doped LaCrO3 as a New p-Type Transparent Conducting Oxide
Kelvin H. L. Zhang,Yingge Du,Alexandra Papadogianni,Oliver Bierwagen,Shawn Sallis,Louis F. J. Piper,Mark E. Bowden,Vaithiyalingam Shutthanandan,Peter V. Sushko,Scott A. Chambers +9 more
TL;DR: Epitaxial La1-x Srx CrO3 deposited on SrTiO3 (001) is shown to be a p-type transparent conducting oxide with competitive figures of merit and a cubic perovskite structure, facilitating integration into oxide electronics.
Journal ArticleDOI
Hydrogen-like Wannier-Mott Excitons in Single Crystal of Methylammonium Lead Bromide Perovskite
Jenya Tilchin,Dmitry N. Dirin,Georgy I. Maikov,Aldona Sashchiuk,Maksym V. Kovalenko,Maksym V. Kovalenko,Efrat Lifshitz +6 more
TL;DR: The photoluminescence temperature dependence suggested dominance of delayed exciton emission at elevated temperatures, originating from detrapping of carriers from shallow traps or/and from retrapped of electron-hole pairs into exciton states.
Journal ArticleDOI
Stable Efficiency Exceeding 20.6% for Inverted Perovskite Solar Cells through Polymer-Optimized PCBM Electron-Transport Layers.
Dong Yang,Xiaorong Zhang,Kai Wang,Congcong Wu,Ruixia Yang,Yuchen Hou,Yuanyuan Jiang,Shengzhong Liu,Shengzhong Liu,Shashank Priya +9 more
TL;DR: Conjugated n-type polymeric materials are mixed together with PCBM to form a homogeneous bulk-mixed (HBM) continuous film with high electron mobility and suitable energy level, and HBM film is found to completely cap the perovskite surface to enhance the electron extraction.
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
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.
Journal ArticleDOI
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.