Study of step annealing method and the effect on optical, structural, morphological and transport properties of CH3NH3PbI3

被引：1

作者：

More, Sagar A. ^{[1
]}

Halor, Rajendra G. ^{[1
]}

Bushra, Meer ^{[1
]}

Shaikh, Raees ^{[1
]}

Bagul, Shanabhau D. ^{[2
]}

Sathe, Vasant ^{[3
]}

Ghosh, Sanjay S. ^{[1
]}

机构：

[1] Kavayitri Bahinabai Chaudhari North Maharashtra U, Dept Phys, Optoelect Lab, Jalgaon 425001, Maharashtra, India

[2] Pratap Coll, Dept Phys, Jalgaon 425401, Maharashtra, India

[3] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India

来源：

SYNTHETIC METALS | 2022年 / 287卷

关键词：

Perovskite; Thermal annealing; Step annealing; Crystallinity; Morphology; SCLC; PEROVSKITE SOLAR-CELLS; HALIDE PEROVSKITE; RECENT PROGRESS; GRAIN-SIZE;

D O I：

10.1016/j.synthmet.2022.117081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal annealing is used as a post-deposition processing method for the formation of solid-state organic-inorganic perovskite film of required phase by removing the remnant solvent in as coated film. In the present work, we have studied temperature, time and the application of giving a temperature step for thermal-annealing process. To provide temperature step heating treatment was given to the spin coated film in two consecutive steps; initially heating at lower temperature followed by at 100 degrees C for 30 min. We show that initial lower temperature annealing step improves crystallite size by retarding crystalline growth due to slower solvent evaporation and obtain improved absorption, phase, surface coverage and mobility. However, if this lower temperature step is not sufficient to step up the formation of desired phase, the second step of higher temperature annealing is also not able to form perovskite phase. This study is supported by studies like UV-visible absorption spectroscopy, Raman spectroscopy, X-ray diffraction, scanning electron microscopy, SCLC measurements etc.

引用

页数：8

共 38 条

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