Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells.
Weijun Ke,Weijun Ke,Weijun Ke,Chuanxiao Xiao,Changlei Wang,Bayrammurad Saparov,Hsin-Sheng Duan,Dewei Zhao,Dewei Zhao,Zewen Xiao,Philip Schulz,Steven P. Harvey,Wei-Qiang Liao,Weiwei Meng,Yue Yu,Alexander J. Cimaroli,Chun-Sheng Jiang,Kai Zhu,Mowafak Al-Jassim,Guojia Fang,David B. Mitzi,Yanfa Yan +21 more
TLDR
Lead thiocyanate in the perovskite precursor can increase the grain size of a perovSkite thin film and reduce the conductivity of the grain boundaries, leading to perovkite solar cells with reduced hysteresis and enhanced fill factor.Abstract:
Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface passivation achieves a steady-state efficiency of 18.42%.read more
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Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells
Jinhui Tong,Jinhui Tong,Zhaoning Song,Dong Hoe Kim,Xihan Chen,Cong Chen,Axel F. Palmstrom,Paul F. Ndione,Matthew O. Reese,Sean P. Dunfield,Sean P. Dunfield,Obadiah G. Reid,Obadiah G. Reid,Jun Liu,Fei Zhang,Steven P. Harvey,Zhen Li,Steven T. Christensen,Glenn Teeter,Dewei Zhao,Mowafak Al-Jassim,Maikel F.A.M. van Hest,Matthew C. Beard,Sean E. Shaheen,Joseph J. Berry,Yanfa Yan,Kai Zhu +26 more
TL;DR: The addition of guanidinium thiocyanate (GuaSCN) resulted in marked improvements in the structural and optoelectronic properties of Sn-Pb mixed, low-band gap perovskite films, enabling the demonstration of >20% efficient low–band gap PSCs.
Journal ArticleDOI
Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22.
Wei-Qiang Liao,Wei-Qiang Liao,Dewei Zhao,Yue Yu,Corey R. Grice,Changlei Wang,Alexander J. Cimaroli,Philip Schulz,Weiwei Meng,Kai Zhu,Ren-Gen Xiong,Yanfa Yan +11 more
TL;DR: Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3 ) perovskite solar cells (PVSCs) are demonstrated and exhibit small photocurrent-voltage hysteresis and high reproducibility.
Journal ArticleDOI
Thermally Stable MAPbI3 Perovskite Solar Cells with Efficiency of 19.19% and Area over 1 cm2 achieved by Additive Engineering.
Yongzhen Wu,Fengxian Xie,Han Chen,Xudong Yang,Huimin Su,Molang Cai,Zhongmin Zhou,Takeshi Noda,Liyuan Han +8 more
TL;DR: An additive-engineering strategy is developed to realize a facile and convenient fabrication method of large-area uniform perovskite films composed of large crystal size and low density of defects, which is found to simultaneously enhance the PCE and the durability of PSCs.
Journal ArticleDOI
Recent Progresses on Defect Passivation toward Efficient Perovskite Solar Cells
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.
References
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Georg Kresse,Jürgen Furthmüller +1 more
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Projector augmented-wave method
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From ultrasoft pseudopotentials to the projector augmented-wave method
Georg Kresse,Daniel P. Joubert +1 more
TL;DR: In this paper, the formal relationship between US Vanderbilt-type pseudopotentials and Blochl's projector augmented wave (PAW) method is derived and the Hamilton operator, the forces, and the stress tensor are derived for this modified PAW functional.
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Ab initio molecular dynamics for liquid metals.
Georg Kresse,Jürgen Hafner +1 more
TL;DR: In this paper, the authors present an ab initio quantum-mechanical molecular-dynamics calculations based on the calculation of the electronic ground state and of the Hellmann-Feynman forces in the local density approximation.