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
Interfacial Residual Stress Relaxation in Perovskite Solar Cells with Improved Stability.
Hao Wang,Cheng Zhu,Lang Liu,Sai Ma,Pengfei Liu,Jiafeng Wu,Congbo Shi,Qin Du,Yanmin Hao,Sisi Xiang,Haining Chen,Pengwan Chen,Yang Bai,Huanping Zhou,Yujing Li,Qi Chen +15 more
TL;DR: A "bone-joint" configuration is constructed within the interface between the absorber and the carrier transport layer, which improves device performance substantially and exhibits an efficiency of 21.48% with good humidity stability and improved resistance against thermal cycling.
Journal ArticleDOI
Layer-by-layer growth of CH₃NH₃PbI(3-x)Clx for highly efficient planar heterojunction perovskite solar cells.
Yonghua Chen,Tao Chen,Liming Dai +2 more
TL;DR: An important step forward in developing high-performance and stable perovskite solar cells with a high efficiency up to 15.12% and an improved stability and a record high efficiency of 12.25% are achieved for this layer-by-layer approach.
Journal ArticleDOI
Oxygen Degradation in Mesoporous Al2O3/CH3NH3PbI3-xClx Perovskite Solar Cells: Kinetics and Mechanisms
Andrew J. Pearson,Giles E. Eperon,Paul E. Hopkinson,Severin N. Habisreutinger,Jacob Tse-Wei Wang,Henry J. Snaith,Neil C. Greenham +6 more
TL;DR: In this article, the degradation of perovskite photovoltaics was investigated and it was shown that by efficiently extracting charge, this degradation can be mitigated by maximizing the tolerance of solar cells to oxygen.
Journal ArticleDOI
Highly efficient low temperature solution processable planar type CH3NH3PbI3 perovskite flexible solar cells
TL;DR: In this article, the authors compared the performance of planar perovskite solar cells with TiO2 and ZnO electron conductors, which are formed by high temperature spray pyrolysis deposition at 450 °C and by room temperature spin-coating and subsequent heat-treatment at 150 °C, respectively.
Journal ArticleDOI
Large-area perovskite nanowire arrays fabricated by large-scale roll-to-roll micro-gravure printing and doctor blading
TL;DR: This study provides low-cost, large-scale techniques to fabricate large-area PNW arrays with great potential applications in flexible electronic and optoelectronic devices.
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.