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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Triarylamine-BODIPY derivatives: A promising building block as hole transporting materials for efficient perovskite solar cells
TL;DR: In this article, the syntheses and characterization of four new TPA-BODIPY dyads as hole-transporting layers (HTLs) are reported, and the photophysical and electrochemical properties of the dyads are investigated in solution and compared with the reference compounds BDP, BDP1, BDP2, TPA, A (triphenylamine) and B (4,4′-dimethoxitriphenylamines).
Journal ArticleDOI
Tailored lead iodide growth for efficient flexible perovskite solar cells and thin-film tandem devices
Stefano Pisoni,Romain Carron,Thierry Moser,Thomas Feurer,Fan Fu,Fan Fu,Shiro Nishiwaki,Ayodhya N. Tiwari,Stephan Buecheler +8 more
TL;DR: Pisoni et al. as discussed by the authors proposed a two-stage hybrid vacuum-solution approach for the perovskite absorber, which enables precise control over the thickness and morphology of PbI2.
Journal ArticleDOI
Lewis-base containing spiro type hole transporting materials for high-performance perovskite solar cells with efficiency approaching 20%
Jianbin Xu,Jianbin Xu,Lusheng Liang,Chi-Lun Mai,Zilong Zhang,Qin Zhou,Qiu Xiong,Zhuangzhuang Zhang,Zhuangzhuang Zhang,Longhui Deng,Longhui Deng,Peng Gao +11 more
TL;DR: This study provides an alternative strategy for the molecular design of better HTMs in high-performance PSCs by synthesizing and confirming spiro-type HTMs that were synthesized and confirmed by density functional theory (DFT) calculations and X-ray single-crystallographic diffraction.
Journal ArticleDOI
Single step deposition of an interacting layer of a perovskite matrix with embedded quantum dots
TL;DR: The approach allows the fabrication of multi-wavelength light emitting diodes (LEDs) based on a PS matrix with embedded QDs, which show considerably low turn-on potentials and opens up a broad range of possibilities with important implications in both LEDs and solar cells.
Journal ArticleDOI
Highly Compact TiO2 Films by Spray Pyrolysis and Application in Perovskite Solar Cells
Alexander Möllmann,Dawit Gedamu,Paola Vivo,Robert Frohnhoven,Daniel Stadler,Thomas Fischer,Ibrahima Ka,Maximilian Steinhorst,Riad Nechache,Federico Rosei,Sylvain G. Cloutier,Thomas Kirchartz,Sanjay Mathur +12 more
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.
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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.
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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.