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
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Effects of Perovskite Monovalent Cation Composition on the High and Low Frequency Impedance Response of Efficient Solar Cells
TL;DR: In this paper, the electrical response of a small ac perturbation applied to solar cells implementing hybrid perovskites with various compositions, polarized over a large potential range, was investigated both under light and in the dark to discriminate the light sensitive parameters.
Journal ArticleDOI
Dimethyl-sulfoxide-assisted improvement in the crystallization of lead-acetate-based perovskites for high-performance solar cells
TL;DR: In this paper, the authors used dimethyl sulfoxide (DMSO) as a solvent additive to improve the quality of Pb(Ac)2-based perovskite films.
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Improvement of the photovoltaic parameters of perovskite solar cells using a reduced-graphene-oxide-modified titania layer and soluble copper phthalocyanine as a hole transporter
TL;DR: The device based on a T/RGO mesoporous layer with an optimal RGO content showed 22% higher photoconversion efficiency and higher stability compared with pristine TiO2-based devices, suggesting improved electron transport characteristics and photovoltaic parameters.
Journal ArticleDOI
Solution-processable electron transport layer for efficient hybrid perovskite solar cells beyond fullerenes
Priyadharsini Karuppuswamy,Priyadharsini Karuppuswamy,Chintam Hanmandlu,Chintam Hanmandlu,Karunakara Moorthy Boopathi,Packiyaraj Perumal,Chi-Ching Liu,Yang-Fang Chen,Yun-Chorng Chang,Pen-Cheng Wang,Chao-Sung Lai,Chao-Sung Lai,Chao-Sung Lai,Chih-Wei Chu,Chih-Wei Chu +14 more
TL;DR: In this paper, a solution-processable planar perylene diimide, N, N ´-dipentyl-3,4,9,10-perylenedicarboximide (PDI), has been demonstrated as a suitable acceptor material to replace the conventional fullerene derivatives (e.g., PCBM) found in inverted perovskite solar cells.
References
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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.
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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.