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
Perovskite solar cells: must lead be replaced – and can it be done?
TL;DR: Criteria for the possible replacement of lead by less toxic elements are outlined, and current research progress in the application of low-lead halide perovskites as optically active materials in solar cells are highlighted.
Journal ArticleDOI
Strong Exciton-Photon Coupling and lasing behavior in All-Inorganic CsPbBr3 Micro/nanowire Fabry-Pérot cavity
Wenna Du,Shuai Zhang,Shuai Zhang,Jia Shi,Jia Shi,Jie Chen,Jie Chen,Zhiyong Wu,Yang Mi,Zhixiong Liu,Yuanzheng Li,Xinyu Sui,Xinyu Sui,Rui Wang,Xiaohui Qiu,Tom Wu,Yun-Feng Xiao,Qing Zhang,Xinfeng Liu,Xinfeng Liu +19 more
TL;DR: In this article, the coupling strength between exciton and photon in a perovskite micro/nanowire material was studied. And the authors demonstrated the strong coupling of exciton-photon and polariton lasing in high quality CsPbBr3 micro and nanowires synthesized by a CVD method.
Journal ArticleDOI
Reducing Surface Recombination Velocities at the Electrical Contacts Will Improve Perovskite Photovoltaics
TL;DR: In this paper, the effects of nonradiative recombination at the extracting contacts on the achievable performance of halide perovskite photovoltaic cells were explored.
Journal ArticleDOI
Controllable design of solid-state perovskite solar cells by SCAPS device simulation
TL;DR: In this paper, the authors used the SCAPS simulator to controllably design solid-state perovskite solar cells (ssPSCs) in photovoltaic field, and the effect of hole transport materials (HTM) parameters, hole mobility and acceptor density, were chosen to study the impact of HTM characteristics on PCE.
Journal ArticleDOI
Output Coupling of Perovskite Lasers from Embedded Nanoscale Plasmonic Waveguides
TL;DR: This work demonstrates the nanoscale output of dielectric lasers via photon-plasmon coupling in rationally designed perovskite/silver heterostructures and would pave an alternative avenue to ultrasmall light sources as well as fundamental studies of light-matter interactions.
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.