Journal ArticleDOI
Synergic Interface Optimization with Green Solvent Engineering in Mixed Perovskite Solar Cells
Tongle Bu,Lan Wu,Xueping Liu,Xiaokun Yang,Peng Zhou,Xinxin Yu,Tianshi Qin,Jiangjian Shi,Song Wang,Saisai Li,Zhiliang Ku,Yong Peng,Fuzhi Huang,Qingbo Meng,Yi-Bing Cheng,Yi-Bing Cheng,Jie Zhong +16 more
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TLDR
In this paper, a green solvent of ethyl acetate was used for perovskite and hole transport layer (HTL) optimization to achieve a state-of-the-art performance.Abstract:
Organic–inorganic hybrid halide perovskite solar cells (PSCs) have recently drawn enormous attentions due to their impressive performance (>22%) and low temperature solution processability (<150 °C). Current solution process involves application of a large amount of toxic solvents, such as chlorobenzene, which is heavily employed in both the perovskite layer and the hole transport layer (HTL) deposition. Herein, this study employs green solvent of ethyl acetate for engineering efficient perovskite and HTL layers, which enables a synergic interface (perovskite/HTL) optimization. A champion efficiency of 19.43% is obtained for small cells (0.16 cm2 with mask) and over 14% for large size modules (5 × 5 cm2). The PSCs prepared from the green solvent engineering demonstrate superior performance on both efficiency and stability over their chlorobenzene counterparts. These enhancements are ascribed to the in situ inhibition on carrier recombination induced by interfacial defects during the solution processing, which enables about 2/3 reduction of calculated recombination rate. Thus, the green solvent route shows the great potential toward environmental-friendly manufacturing.read more
Citations
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Journal ArticleDOI
Universal passivation strategy to slot-die printed SnO 2 for hysteresis-free efficient flexible perovskite solar module
Tongle Bu,Jing Li,Fei Zheng,Weijian Chen,Xiaoming Wen,Zhiliang Ku,Yong Peng,Jie Zhong,Yi-Bing Cheng,Yi-Bing Cheng,Fuzhi Huang +10 more
TL;DR: A universal potassium passivation strategy is developed to improve the quality of slot-die printed tin oxide electron transport layers and demonstrate highly efficient and hysteresis-free flexible devices.
Journal ArticleDOI
Perovskite precursor solution chemistry: from fundamentals to photovoltaic applications.
TL;DR: The fundamental background knowledge of nucleation and crystal growth processes in solution including the LaMer model and Ostwald ripening process is described and the contemporary progress in chemical precursor composition is provided to comprehend the current research approaches to further enhance photovoltaic performance and device stability.
Journal ArticleDOI
A novel quadruple-cation absorber for universal hysteresis elimination for high efficiency and stable perovskite solar cells
Tongle Bu,Xueping Liu,Yuan Zhou,Jian-Peng Yi,Xin Huang,Long Luo,Junyan Xiao,Zhiliang Ku,Yong Peng,Fuzhi Huang,Yi-Bing Cheng,Yi-Bing Cheng,Jie Zhong +12 more
TL;DR: In this paper, a quadruple-cation perovskite absorber, KxCs0.05(FA0.85MA0.15)0.95Pb(I 0.85Br 0.15), was proposed to eliminate the hysteresis in PSCs.
Journal ArticleDOI
Synthetic Approaches for Halide Perovskite Thin Films.
TL;DR: This comprehensive review explores how the unique chemistry of halide perovskites can be exploited to tailor film growth processes and highlights the connections between processing methods and the resulting film characteristics.
Journal ArticleDOI
Toward Perovskite Solar Cell Commercialization: A Perspective and Research Roadmap Based on Interfacial Engineering.
TL;DR: A unique outlook on the paths toward commercialization of PVKSCs from the interfacial engineering perspective is offered, relevant to both specialists and nonspecialists in the field through a brief introduction of the background of the field, current state-of-the-art evolution, and future research prospects.
References
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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
Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber.
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this article, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
Journal Article
Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this paper, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
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
TL;DR: 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.