A solution-based ALD route towards (CH3NH3)(PbI3) perovskite via lead sulfide films
نویسندگان
چکیده
منابع مشابه
A resistance change effect in perovskite CH3NH3PbI3 films induced by ammonia.
The resistance of the perovskite CH3NH3PbI3 film was found to decrease significantly in seconds when the film was exposed to an NH3 atmosphere at room-temperature, and recover to its original value in seconds when out of the NH3 environment.
متن کاملNonstoichiometric acid–base reaction as reliable synthetic route to highly stable CH3NH3PbI3 perovskite film
Perovskite solar cells have received worldwide interests due to swiftly improved efficiency but the poor stability of the perovskite component hampers the device fabrication under normal condition. Herein, we develop a reliable nonstoichiometric acid-base reaction route to stable perovskite films by intermediate chemistry and technology. Perovskite thin-film prepared by nonstoichiometric acid-b...
متن کاملCrystal Structure Formation of CH3NH3PbI3-xClx Perovskite
Inorganic-organic hydride perovskites bring the hope for fabricating low-cost and large-scale solar cells. At the beginning of the research, two open questions were raised: the hysteresis effect and the role of chloride. The presence of chloride significantly improves the crystallization and charge transfer property of the perovskite. However, though the long held debate over of the existence o...
متن کاملHigh-performance perovskite CH3NH3PbI3 thin films for solar cells prepared by single-source physical vapour deposition
In this work, an alternative route to fabricating high-quality CH3NH3PbI3 thin films is proposed. Single-source physical vapour deposition (SSPVD) without a post-heat-treating process was used to prepare CH3NH3PbI3 thin films at room temperature. This new process enabled complete surface coverage and moisture stability in a non-vacuum solution. Moreover, the challenges of simultaneously control...
متن کاملElucidating the role of disorder and free-carrier recombination kinetics in CH3NH3PbI3 perovskite films
Apart from broadband absorption of solar radiation, the performance of photovoltaic devices is governed by the density and mobility of photogenerated charge carriers. The latter parameters indicate how many free carriers move away from their origin, and how fast, before loss mechanisms such as carrier recombination occur. However, only lower bounds of these parameters are usually obtained. Here...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Materials Chemistry A
سال: 2019
ISSN: 2050-7488,2050-7496
DOI: 10.1039/c9ta09715e