The formation of smooth, dense, and uniform perovskite layers on substrates is crucial for achieving high-performance perovskite devices. Here, we show that the introduction of a small concentration of cesium iodide to the precursor solution has a considerable effect on the morphology, phase and optoelectronic properties of CH3NH3PbI3-based perovskite films. An optimized concentration of 3% produces a high-quality perovskite film with a large grain size of similar to 1.8 mu m and a root mean square roughness of 5.917 nm. The improved morphology and high optoelectronic quality of the perovskite layer were verified by SEM, AFM, XRD, and UV-visible, photoluminescence and electrochemical impedance spectroscopy. The defect-free thin perovskite layer enables the fabrication of a mesoscopic CH3NH3PbI3-based perovskite device under ambient conditions, with a maximum power conversion efficiency of similar to 19% with negligible hysteresis and high reproducibility. This method can be extended to other complexes of perovskite used in the present state-of-the-art perovskite solar cells.
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Ahn, Namyoung
Son, Dae-Yong
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Son, Dae-Yong
Jang, In-Hyuk
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Jang, In-Hyuk
Kang, Seong Min
论文数: 0引用数: 0
h-index: 0
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Kang, Seong Min
Choi, Mansoo
论文数: 0引用数: 0
h-index: 0
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Choi, Mansoo
Park, Nam-Gyu
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
机构:
Helmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, GermanyHelmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, Germany
Albrecht, Steve
Rech, Bernd
论文数: 0引用数: 0
h-index: 0
机构:
Helmholtz Zentrum Berlin Mat & Energie, Inst Silicon Photovolta, Kekulestr 5, D-12489 Berlin, GermanyHelmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, Germany
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Baikie, Tom
Fang, Yanan
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Fang, Yanan
Kadro, Jeannette M.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Kadro, Jeannette M.
Schreyer, Martin
论文数: 0引用数: 0
h-index: 0
机构:
Inst Chem Engn Sci, Singapore 627833, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Schreyer, Martin
Wei, Fengxia
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Wei, Fengxia
Mhaisalkar, Subodh G.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Mhaisalkar, Subodh G.
Graetzel, Michael
论文数: 0引用数: 0
h-index: 0
机构:
Ecole Polytech Fed Lausanne, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, SwitzerlandNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Graetzel, Michael
White, Tim J.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Chen, Haining
Wei, Zhanhua
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Wei, Zhanhua
He, Hexiang
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
He, Hexiang
Zheng, Xiaoli
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Zheng, Xiaoli
Wong, Kam Sing
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Wong, Kam Sing
Yang, Shihe
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Ahn, Namyoung
Son, Dae-Yong
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Son, Dae-Yong
Jang, In-Hyuk
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Jang, In-Hyuk
Kang, Seong Min
论文数: 0引用数: 0
h-index: 0
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Kang, Seong Min
Choi, Mansoo
论文数: 0引用数: 0
h-index: 0
机构:
Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
Choi, Mansoo
Park, Nam-Gyu
论文数: 0引用数: 0
h-index: 0
机构:
Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South KoreaSeoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 151742, South Korea
机构:
Helmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, GermanyHelmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, Germany
Albrecht, Steve
Rech, Bernd
论文数: 0引用数: 0
h-index: 0
机构:
Helmholtz Zentrum Berlin Mat & Energie, Inst Silicon Photovolta, Kekulestr 5, D-12489 Berlin, GermanyHelmholtz Zentrum Berlin Mat & Energie, Young Investigator Grp Perovskite Tandem Solar Ce, Kekulestr 5, D-12489 Berlin, Germany
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Baikie, Tom
Fang, Yanan
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Fang, Yanan
Kadro, Jeannette M.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Kadro, Jeannette M.
Schreyer, Martin
论文数: 0引用数: 0
h-index: 0
机构:
Inst Chem Engn Sci, Singapore 627833, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Schreyer, Martin
Wei, Fengxia
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Wei, Fengxia
Mhaisalkar, Subodh G.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Mhaisalkar, Subodh G.
Graetzel, Michael
论文数: 0引用数: 0
h-index: 0
机构:
Ecole Polytech Fed Lausanne, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, SwitzerlandNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
Graetzel, Michael
White, Tim J.
论文数: 0引用数: 0
h-index: 0
机构:
Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, SingaporeNanyang Technol Univ, Energy Res Inst NTU ERI N, Singapore 637553, Singapore
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Chen, Haining
Wei, Zhanhua
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Wei, Zhanhua
He, Hexiang
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
He, Hexiang
Zheng, Xiaoli
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Zheng, Xiaoli
Wong, Kam Sing
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
Wong, Kam Sing
Yang, Shihe
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China