Journal ArticleDOI
Inorganic Rubidium Cation as an Enhancer for Photovoltaic Performance and Moisture Stability of HC(NH2)2PbI3 Perovskite Solar Cells
Yun Hee Park,Yun Hee Park,Inyoung Jeong,Inyoung Jeong,Seunghwan Bae,Hae Jung Son,Phillip Lee,Jinwoo Lee,Chul Ho Lee,Min Jae Ko,Min Jae Ko +10 more
TLDR
In this paper, the authors proposed an inorganic-organic mixed cation system to enhance moisture-tolerance and photovoltaic performances of formamidinium lead iodide (FAPbI3).Abstract:
Perovskite solar cells (PSCs) based on organic monovalent cation (methylammonium or formamidinium) have shown excellent optoelectronic properties with high efficiencies above 22%, threatening the status of silicon solar cells. However, critical issues of long-term stability have to be solved for commercialization. The severe weakness of the state-of-the-art PSCs against moisture originates mainly from the hygroscopic organic cations. Here, rubidium (Rb) is suggested as a promising candidate for an inorganic–organic mixed cation system to enhance moisture-tolerance and photovoltaic performances of formamidinium lead iodide (FAPbI3). Partial incorporation of Rb in FAPbI3 tunes the tolerance factor and stabilizes the photoactive perovskite structure. Phase conversion from hexagonal yellow FAPbI3 to trigonal black FAPbI3 becomes favored when Rb is introduced. The authors find that the absorbance and fluorescence lifetime of 5% Rb-incorporated FAPbI3 (Rb0.05FA0.95PbI3) are enhanced than bare FAPbI3. Rb0.05FA0.95PbI3-based PSCs exhibit a best power conversion efficiency of 17.16%, which is much higher than that of the FAPbI3 device (13.56%). Moreover, it is demonstrated that the Rb0.05FA0.95PbI3 film shows superior stability against high humidity (85%) and the full device made with the mixed perovskite exhibits remarkable long-term stability under ambient condition without encapsulation, retaining the high performance for 1000 h.read more
Citations
More filters
Journal ArticleDOI
In Situ Formation of δ-FAPbI3 at the Perovskite/Carbon Interface for Enhanced Photovoltage of Printable Mesoscopic Perovskite Solar Cells
Xiayan Chen,Yongkang Xia,Zi-da Zheng,Xuan Xiao,Chenxi Ling,Minghao Xia,Yue Hu,Anyi Mei,Rongrong Cheacharoen,Yaoguang Rong,Hongwei Han +10 more
TL;DR: In this article , a hole-conductor-free triplemesoscopic perovskite solar cells (PSCs) are constructed at the interface between a perov-absorbing layer and charge-transporting layers for enhancing the VOC of PSCs.
Journal ArticleDOI
C60-assisted crystal engineering for perovskite solar cells with enhanced efficiency and stability
Chao Ji,Chunjun Liang,Huimin Zhang,Mengjie Sun,Fulin Sun,Qi Song,Xuewen Zhang,Dan Li,Fangtian You,Zhiqun He +9 more
TL;DR: In this article, a small amount of fullerene (C60) is added to toluene in the antisolvent dripping process to improve perovskite thin films.
Journal ArticleDOI
Formamidinium-based ruddlesden-popper perovskite films fabricated via two-step sequential deposition: quantum well formation, physical properties and film-based solar cells
Jing Lu,Ting-ling Yang,Tianqi Niu,Nuo Bu,Yan Zhang,Shiqiang Wang,Junjie Fang,Xiao Ying Chang,Tao Luo,Jia Bao Wen,Yi Yang,Zicheng Ding,Kui Zhao,Shengzhong Frank Liu +13 more
TL;DR: In this article , the use of layered perovskites is an important strategy to stabilize the formamidine (FA) based photoactive α-FAPbI3 phase.
Journal ArticleDOI
Control of the quality and homogeneity of halide perovskites by mixed-chloride additives upon the film formation process
Daming Zheng,Thierry Pauporté +1 more
TL;DR: In this article, the effect of ammonium chloride and potassium chloride additives on the formation mechanism of Cs0.1FA0.9PbI3 films upon annealing was highlighted.
Journal ArticleDOI
Beneficial effects of cesium acetate in the sequential deposition method for perovskite solar cells
Byeong Jo Kim,Gerrit Boschloo +1 more
TL;DR: A small amount of cesium acetate is introduced that can effectively stabilize FAMAPbI3 under thermal- and light illumination-stress and provide insight into how dopants and synthesis precursors play an important role in efficient and stable perovskite solar cells.
References
More filters
Journal ArticleDOI
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.
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 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 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.