Thermodynamically regulated preparation of high performance for carbon-based Cs2AgBiBr6 perovskite solar cells. (February 2023)

• Record Type: Journal Article
• Authors: Liu, Sinan; Zhang, Haiming; Xing, Yuwen; He, Qingchen; Han, Siqi; Zhu, Haina
• Is Part Of: Materials science in semiconductor processing. Volume 154(2023)
• Publication Date: 2023-02
• Subjects: Cs2AgBiBr6 double perovskite films -- Precursor solution -- Dripping temperature -- Carbon-based PSC; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2022.107193
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: In this paper, the effect of the dripping temperature of the precursor solution on the quality of the Cs2 AgBiBr6 film was studied in detail. It can be concluded that the Cs2 AgBiBr6 film's quality is the best when the dripping temperature is 65 °C. To further study the influence of the quality of the Cs2 AgBiBr6 film on the performance of perovskite PSCs, an HTL-free carbon-based PSC with Cs2 AgBiBr6 as a light absorbing layer was fabricated. The photoelectric test results show that the Cs2 AgBiBr6 carbon-based PSC prepared at 65 °C has the best performance and the PCE of 0.54% is attained, which is 27% higher than that prepared at 25 °C. This work provides valuable guidance for the preparation of high-quality Cs2 AgBiBr6 film by one-step method. Graphical abstract: In this paper, the effect of the dripping temperature of the precursor solution on the quality of the Cs2 AgBiBr6 film was studied in detail. It can be concluded that the Cs2 AgBiBr6 film's quality is the best when the dripping temperature is 65 °C. To further study the influence of the quality of the Cs2 AgBiBr6 film on the performance of perovskite PSCs, an HTL-free carbon-based PSC with Cs2 AgBiBr6 as light absorbing layer was fabricated. The photoelectric test results show that the Cs2 AgBiBr6 carbon-based PSC prepared at 65 °C has the best performance and the PCE of 0.54% is attained, which is 27% higher than that prepared at 25 °C. This work provides valuable guidance for the preparation of high-quality Cs2 AgBiBr6 film by one-step method. Image 1 Highlights: The quality of Cs2 AgBiBr6 film was improved by changing the dripping temperature of the precursor solution. The effect of the dripping temperature of precursor solution on the nucleation mechanism of PSCs was studied. The carbon-based PSC prepared at 65 °C has the best performance and the PCE of 0.54% is attained, which is 27% higher than that prepared at 25 °C.