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
Combustion Synthesized Zinc Oxide Electron-Transport Layers for Efficient and Stable Perovskite Solar Cells
Ding Zheng,Ding Zheng,Gang Wang,Wei Huang,Binghao Wang,Weijun Ke,Jenna L. Logsdon,Hanyu Wang,Zhi Wang,Weigang Zhu,Junsheng Yu,Michael R. Wasielewski,Mercouri G. Kanatzidis,Tobin J. Marks,Antonio Facchetti +14 more
Journal ArticleDOI
Diffraction-Grated Perovskite Induced Highly Efficient Solar Cells through Nanophotonic Light Trapping
Yang Wang,Peng Wang,Xue Zhou,Chang Li,Huizeng Li,Xiaotian Hu,Fengyu Li,Xiaoping Liu,Mingzhu Li,Yanlin Song +9 more
Journal ArticleDOI
Investigation of the Hydrolysis of Perovskite Organometallic Halide CH3NH3PbI3 in Humidity Environment
Jiangtao Zhao,Bing Cai,Zhenlin Luo,Yongqi Dong,Yi Zhang,Han Xu,Bin Hong,Yuanjun Yang,Liangbin Li,Wenhua Zhang,Chen Gao +10 more
TL;DR: In situ synchrotron radiation x-ray diffraction was combined with microscopy and gravimetric analysis to study the degradation process of perovskite organometallic halide in moisture, and the results reveal that intermediate monohydrated CH3NH3PbI3·H2O is detected and the final decomposition products are PbI2 and aqueous CH3 NH3I.
Journal ArticleDOI
It Takes Two to Tango—Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresis
Lukas Kegelmann,Christian M. Wolff,Celline Awino,Felix Lang,Eva L. Unger,Lars Korte,Thomas Dittrich,Dieter Neher,Bernd Rech,Steve Albrecht +9 more
TL;DR: The herein demonstrated improvements of multilayer selective contacts may serve as a general design guideline for perovskite solar cells.
Journal ArticleDOI
Charge Carrier Dynamics in Cs2AgBiBr6 Double Perovskite.
Davide Bartesaghi,Adam H. Slavney,María C. Gélvez-Rueda,Bridget A. Connor,Ferdinand C. Grozema,Hemamala I. Karunadasa,Tom J. Savenije +6 more
TL;DR: Th thin films and crystals of Cs2AgBiBr6 are characterized by time-resolved microwave conductance (TRMC), which probes formation and decay of mobile charges upon pulsed irradiation, and trap-assisted recombination of charges in the bulk appears to be slow, which is promising for photovoltaic applications.
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.