High quality quasi-two-dimensional organic-inorganic hybrid halide perovskite film for high performance photodetector

被引：14

作者：

Xian, Siyi ^{[1
]}

Hou, Sumin ^{[1
]}

Zhang, Huafang ^{[1
,2
]}

Yang, Jiazhen ^{[1
]}

Pan, Gencai ^{[1
]}

Gao, Huiping ^{[1
]}

You, Wenwu ^{[1
]}

Zhang, Zhenlong ^{[1
]}

Zhu, Baohua ^{[1
]}

Mao, Yanli ^{[1
,2
]}

机构：

[1] Henan Univ, Sch Phys & Elect, Kaifeng 475004, Peoples R China

[2] Int Joint Res Lab New Energy Mat & Devices Henan P, Kaifeng 475004, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2023年 / 122卷 / 10期

关键词：

Halide perovskites - High quality - Optoelectronics property - Organic/Inorganic hybrids - Performance - Perovskite films - Quasi-2d - Ruddlesden-Popper - Strong dependences - Two-dimensional;

D O I：

10.1063/5.0139686

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two-dimensional (2D) Ruddlesden-Popper perovskites have attracted extensive attention in photodetectors (PDs) due to their exceptional optoelectronic properties. The performances of PDs show extremely strong dependence on defects in 2D perovskites. Herein, high quality and less defective BA(2)FAPb(2)I(7) perovskite films were obtained by a simple one-step spin coating method with rare earth doping assisted crystal growth. Furthermore, BA(2)FAPb(2)I(7) perovskite films were used as photoresponsive materials to fabricate architectural simplicity photoconductor PDs. Under 405 nm laser illumination, the PDs show remarkable balance detect properties with a low dark current of 5.1 x 10(-11) A, a large on/off ratio of 2.2 x 10(5), a high responsivity (R) of 4.51 A/W, an outstanding detectivity( D* (shot) ) of 4.31 x 10(13) Jones, and a response speed of 80 mu s/76 mu s. The R and D* (shot) of the PDs are outstanding in the reported quasi-2D perovskite PDs with the same structure. Our work not only paves an indubitably feasible way for fabrication of quasi-2D perovskite PDs via improving their natural material properties but also provides a clear direction for further enhancing the performance of other perovskites optoelectronics.

引用

页数：8