Efficient luminescent solar cells based on tailored mixed-cation perovskites
Dongqin Bi,Wolfgang Tress,M. Ibrahim Dar,Peng Gao,Jingshan Luo,Clementine Renevier,Kurt Schenk,Antonio Abate,Fabrizio Giordano,Juan-Pablo Correa Baena,Jean-David Decoppet,Shaik M. Zakeeruddin,Mohammad Khaja Nazeeruddin,Michael Grätzel,Anders Hagfeldt +14 more
TLDR
A new metal halide perovskite photovoltaic cell that exhibits both very high solar-to-electric power-conversion efficiency and intense electroluminescence is reported on.Abstract:
We report on a new metal halide perovskite photovoltaic cell that exhibits both very high solar-to-electric power-conversion efficiency and intense electroluminescence. We produce the perovskite films in a single step from a solution containing a mixture of FAI, PbI2, MABr, and PbBr2 (where FA stands for formamidinium cations and MA stands for methylammonium cations). Using mesoporous TiO2 and Spiro-OMeTAD as electron- and hole-specific contacts, respectively, we fabricate perovskite solar cells that achieve a maximum power-conversion efficiency of 20.8% for a PbI2/FAI molar ratio of 1.05 in the precursor solution. Rietveld analysis of x-ray diffraction data reveals that the excess PbI2 content incorporated into such a film is about 3 weight percent. Time-resolved photoluminescence decay measurements show that the small excess of PbI2 suppresses nonradiative charge carrier recombination. This in turn augments the external electroluminescence quantum efficiency to values of about 0.5%, a record for perovskite photovoltaics approaching that of the best silicon solar cells. Correspondingly, the open-circuit photovoltage reaches 1.18 V under AM 1.5 sunlight.read more
Citations
More filters
Journal ArticleDOI
Vapor-Deposited Perovskites: The Route to High-Performance Solar Cell Production?
TL;DR: In this paper, the authors review the fundamentals of perovskite vapor-related techniques in order to put their real potential and challenges into perspective, and discuss the challenges of using them in larger scale and volume preparations.
Journal ArticleDOI
Understanding how excess lead iodide precursor improves halide perovskite solar cell performance
Byung-wook Park,Nir Kedem,Michael Kulbak,Do Yoon Lee,Woon Seok Yang,Nam Joong Jeon,Jangwon Seo,Geonhwa Kim,Geonhwa Kim,Ki-Jeong Kim,Tae Joo Shin,Gary Hodes,David Cahen,Sang Il Seok +13 more
TL;DR: The underlying microscopic mechanism to be promoting the oriented growth of the perovskites crystals and reducing the defect concentration is unveiled, and the role of lead iodide is proposed.
Journal ArticleDOI
What Remains Unexplained about the Properties of Halide Perovskites
David Egger,Achintya Bera,David Cahen,Gary Hodes,Thomas Kirchartz,Thomas Kirchartz,Leeor Kronik,Robert Lovrincic,Andrew M. Rappe,David R. Reichman,Omer Yaffe +10 more
TL;DR: The notion that halide perovskite crystals (ABX3) exhibit unique structural and optoelectronic behavior deserves serious scrutiny, and the question which attributes of these materials are unusual, is discussed, with an emphasis on the identification of the most important remaining issues.
Journal ArticleDOI
Facile synthesized organic hole transporting material for perovskite solar cell with efficiency of 19.8
TL;DR: In this article, a spiro[fluorene-9,9′-xanthene] based molecular hole-transporting materials (X59) was developed via two-step synthesis from commercial precursors for perovskite solar cells.
Journal ArticleDOI
A Semitransparent Inorganic Perovskite Film for Overcoming Ultraviolet Light Instability of Organic Solar Cells and Achieving 14.03% Efficiency
Weijie Chen,Jingwen Zhang,Guiying Xu,Rongming Xue,Yaowen Li,Yinhua Zhou,Jianhui Hou,Yongfang Li,Yongfang Li +8 more
TL;DR: An inorganic-perovskite/organic four-terminal tandem solar cell based on a semitransparent inorganic CsPbBr3 perovskITE solar cell (pero-SC) as the top cell and an OSC as bottom cell is constructed, avoiding the instability problem of UV light on the bottom OSC and leading to the highest reported PCE.
References
More filters
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
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.
Journal ArticleDOI
High-performance photovoltaic perovskite layers fabricated through intramolecular exchange
Woon Seok Yang,Jun Hong Noh,Nam Joong Jeon,Young Chan Kim,Seungchan Ryu,Jangwon Seo,Sang Il Seok +6 more
TL;DR: An approach for depositing high-quality FAPbI3 films, involving FAP bI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide is reported.