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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Journal ArticleDOI
High-Temperature–Short-Time Annealing Process for High-Performance Large-Area Perovskite Solar Cells
Minjin Kim,Minjin Kim,Gi-Hwan Kim,Kyoung Suk Oh,Kyoung Suk Oh,Yimhyun Jo,Hyun Yoon,Ka Hyun Kim,Heon Lee,Jin Young Kim,Dong Suk Kim +10 more
TL;DR: This simple method should lead the field toward the fabrication of uniform large-scale perovskite films, which are necessary for the production of high-efficiency solar cells that may also be applicable to several other material systems for more widespread practical deployment.
Journal ArticleDOI
High-Efficiency Perovskite Solar Cells Using Molecularly Engineered, Thiophene-Rich, Hole-Transporting Materials: Influence of Alkyl Chain Length on Power Conversion Efficiency
Iwan Zimmermann,Javier Urieta-Mora,Javier Urieta-Mora,Paul Gratia,Juan Aragó,Giulia Grancini,Agustín Molina-Ontoria,Enrique Ortí,Nazario Martín,Nazario Martín,Mohammad Khaja Nazeeruddin +10 more
TL;DR: In this paper, a series of novel small-molecule hole-transporting materials (HTMs) based on an anthra[1,2-b:4,3-b′:5,6b′′:8,7b′)tetrathiophene (ATT) core are reported.
Journal ArticleDOI
A Two-Dimensional Hole-Transporting Material for High-Performance Perovskite Solar Cells with 20 % Average Efficiency.
Qian-Qing Ge,Jiang-Yang Shao,Jie Ding,Li-Ye Deng,Wen-Ke Zhou,Yao-Xuan Chen,Jingyuan Ma,Li-Jun Wan,Jiannian Yao,Jin-Song Hu,Yu-Wu Zhong +10 more
TL;DR: The incorporation of the phenyl-thiophene units in OMe-TATPyr are beneficial for not only carrier transportation through improved charge delocalization and intermolecular stacking, but also potential trap passivation via Pb-S interaction as supported by depth-profiling XPS, photoluminescence, and electrochemical impedance analysis.
Journal ArticleDOI
Reducing Voltage Losses in Cascade Organic Solar Cells while Maintaining High External Quantum Efficiencies
Vasileios C. Nikolis,Johannes Benduhn,Felix Holzmueller,Fortunato Piersimoni,Matthias Lau,Olaf Zeika,Dieter Neher,Christian Koerner,Donato Spoltore,Koen Vandewal +9 more
TL;DR: In this paper, an optimization route is presented which increases the VOC by reducing the interfacial area between donor (D) and acceptor (A), which is attributed solely to the suppression of nonradiative recombination at the D-A interface.
Journal ArticleDOI
Metal halide perovskites: stability and sensing-ability
Zhaohua Zhu,Qian Sun,Zhipeng Zhang,Jie Dai,Guichuan Xing,Shaozhou Li,Xiao Huang,Wei Huang,Wei Huang,Wei Huang +9 more
TL;DR: In this article, the authors highlight the recent attempts to apply perovskites for the detection of temperature change, humidity, gases, solvents and ions, and discuss current challenges and future opportunities for developing sensing systems based on metal halide perovsites.
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.
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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.