TY - UNPB
T1 - One-pot solution growth of 2D/3D perovskite crystalline lateral heterostructures
AU - Yang, Tiebin
AU - Li, Feng
AU - Lin, Chun-Ho
AU - Guan, Xinwei
AU - Yao, Yin
AU - Yang, Xudong
AU - Wu, Tom
AU - Zheng, Rongkun
PY - 2022/4/6
Y1 - 2022/4/6
N2 - Halide perovskites, due to their remarkable characteristics including high absorption coefficients, tunable bandgaps, superior carrier dynamics, as well as solution-processed procedures, have demonstrated huge potential in next-generation device applications. Creating perovskite heterostructures, featuring the spatial modulation of structural, electronic, and optical properties, is expected to further boost device performance and may even open up new realms; however, direct growth of mixed-dimensional lateral heterostructures remains a significant challenge. Here we present a one-pot solution synthesis of two-/three-dimensional (2D/3D) crystalline perovskite lateral heterostructures, leveraging on their different temperature-dependent solubilities. Various types of heterostructures are demonstrated with well-defined interfaces and negligible ion diffusion, exhibiting clear structural and optical modulations. The resultant photodiodes yield a low dark current less than 0.1 nA and a detectivity exceeding 1013 Jones (much higher than those made of 2D or 3D thin crystals). The facile growth of such lateral crystalline perovskite heterostructures underscores a significant advance and opens up new opportunities for advanced perovskite optoelectronics.
AB - Halide perovskites, due to their remarkable characteristics including high absorption coefficients, tunable bandgaps, superior carrier dynamics, as well as solution-processed procedures, have demonstrated huge potential in next-generation device applications. Creating perovskite heterostructures, featuring the spatial modulation of structural, electronic, and optical properties, is expected to further boost device performance and may even open up new realms; however, direct growth of mixed-dimensional lateral heterostructures remains a significant challenge. Here we present a one-pot solution synthesis of two-/three-dimensional (2D/3D) crystalline perovskite lateral heterostructures, leveraging on their different temperature-dependent solubilities. Various types of heterostructures are demonstrated with well-defined interfaces and negligible ion diffusion, exhibiting clear structural and optical modulations. The resultant photodiodes yield a low dark current less than 0.1 nA and a detectivity exceeding 1013 Jones (much higher than those made of 2D or 3D thin crystals). The facile growth of such lateral crystalline perovskite heterostructures underscores a significant advance and opens up new opportunities for advanced perovskite optoelectronics.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85134052314&partnerID=MN8TOARS
UR - https://www.scopus.com/pages/publications/85134052314
U2 - 10.21203/rs.3.rs-1495375/v1
DO - 10.21203/rs.3.rs-1495375/v1
M3 - Preprint
T3 - Research Square
BT - One-pot solution growth of 2D/3D perovskite crystalline lateral heterostructures
ER -