Journal ArticleDOI
Energy-Down-Shift CsPbCl3:Mn Quantum Dots for Boosting the Efficiency and Stability of Perovskite Solar Cells
Qian Wang,Xisheng Zhang,Xisheng Zhang,Zhiwen Jin,Jingru Zhang,Zhenfei Gao,Yongfang Li,Shengzhong Frank Liu,Shengzhong Frank Liu +8 more
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TLDR
In this paper, CsPbCl3:Mn-based quantum dots (QDs) are synthesized and applied onto the front side of the perovskite solar cells as the energy-downshift (EDS) layer.Abstract:
Parasitic absorption by window layer, electrode layer, and interface layer in the near ultraviolet (UV) region is no longer negligible for high-efficiency perovskite solar cells On the other hand, UV-induced degradation is also a big component of cell instability Herein, CsPbCl3:Mn-based quantum dots (QDs) are synthesized and applied onto the front side of the perovskite solar cells as the energy-down-shift (EDS) layer It is found that with very high quantum yield (∼60%) and larger Stokes shift (>200 nm), the CsPbCl3:Mn QDs effectively convert the normally wasted energy in the UV region (300–400 nm) into usable visible light at ∼590 nm for enhanced power conversion efficiency (PCE) Meanwhile, conversion of the UV rays eliminated a significant loss mechanism that deteriorates perovskite stability As a result, external quantum efficiency in the UV region is significantly increased, leading to an increased short-circuit current (377%) and PCE (334%) Furthermore, the stability of perovskite solar cellread more
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Metal-Doped Lead Halide Perovskites: Synthesis, Properties, and Optoelectronic Applications
TL;DR: Doping of lead halide perovskites (LHPs) with the targeted impurities has emerged as an additional lever, a dimension beyond structural perfection and compositional distinction, for the alteration as mentioned in this paper.
Journal ArticleDOI
All‐Inorganic CsPbX3 Perovskite Solar Cells: Progress and Prospects
TL;DR: This review aims to summarize the field up to now, propose solutions in terms of development bottlenecks, and attempt to boost further research in CsPbX3 PSCs.
Journal ArticleDOI
All-inorganic cesium lead iodide perovskite solar cells with stabilized efficiency beyond 15
Kang Wang,Zhiwen Jin,Zhiwen Jin,Lei Liang,Hui Bian,Dongliang Bai,Haoran Wang,Jingru Zhang,Qian Wang,Qian Wang,Shengzhong Liu,Shengzhong Liu +11 more
TL;DR: A distorted black CsPbI3 film is reported by exploiting the synergistic effect of hydroiodic acid and phenylethylammonium iodide additives to achieve device efficiency beyond 15% with high light soaking stability.
Journal ArticleDOI
Interstitial Mn2+-Driven High-Aspect-Ratio Grain Growth for Low-Trap-Density Microcrystalline Films for Record Efficiency CsPbI2Br Solar Cells
Dongliang Bai,Jingru Zhang,Zhiwen Jin,Hui Bian,Kang Wang,Haoran Wang,Lei Liang,Qian Wang,Shengzhong Frank Liu,Shengzhong Frank Liu +9 more
TL;DR: In this paper, a large-aspect-ratio grain-based thin film with low trap density was developed for high-performance inorganic perovskite CsPbI2Br solar cells.
References
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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
Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut
Loredana Protesescu,Loredana Protesescu,Sergii Yakunin,Sergii Yakunin,Maryna I. Bodnarchuk,Maryna I. Bodnarchuk,Franziska Krieg,Franziska Krieg,Riccarda Caputo,Christopher H. Hendon,Ruo Xi Yang,Aron Walsh,Maksym V. Kovalenko,Maksym V. Kovalenko +13 more
TL;DR: The compelling combination of enhanced optical properties and chemical robustness makes CsPbX3 nanocrystals appealing for optoelectronic applications, particularly for blue and green spectral regions (410–530 nm), where typical metal chalcogenide-based quantum dots suffer from photodegradation.
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.
Journal ArticleDOI
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
Journal ArticleDOI
Compositional engineering of perovskite materials for high-performance solar cells
Nam Joong Jeon,Jun Hong Noh,Woon Seok Yang,Young Chan Kim,Seungchan Ryu,Jangwon Seo,Sang Il Seok +6 more
TL;DR: This work combines the promising—but relatively unstable formamidinium lead iodide with FAPbI3 with methylammonium lead bromide as the light-harvesting unit in a bilayer solar-cell architecture and improves the power conversion efficiency of the solar cell to more than 18 per cent under a standard illumination.