Enhancement of Perovskite solar cells performance using electrochemically grown TiO<inf>2</inf>quantum dots
Issued Date
2023-01-01
Resource Type
ISSN
17426588
eISSN
17426596
Scopus ID
2-s2.0-85148000977
Journal Title
Journal of Physics: Conference Series
Volume
2431
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Physics: Conference Series Vol.2431 No.1 (2023)
Suggested Citation
Sintiam T., Saranrom N., Phadungdhitidhada S., Choopun S., Sucharitakul S. Enhancement of Perovskite solar cells performance using electrochemically grown TiO<inf>2</inf>quantum dots. Journal of Physics: Conference Series Vol.2431 No.1 (2023). doi:10.1088/1742-6596/2431/1/012054 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/82254
Title
Enhancement of Perovskite solar cells performance using electrochemically grown TiO<inf>2</inf>quantum dots
Other Contributor(s)
Abstract
Perovskite solar cells (PSCs) have been at the center of attention for research and development of clean energy technology. The platform promises high performance with relatively cheap and low-temperature processing. The main hindrance of the platform is low stability and performance degradation due to humidity. Most defects and degradation often stem from interfaces between the perovskite layer (PSVK) and carrier transporting layer. This work aimed to solve such an issue by improving the interface between the Perovskite layer (PSVK) and electron transporting layer (ETL) made of titanium in the Perovskite solution. That is methylammonium formamidinium lead iodide (FA0.3MA0.7PbI3) PSCs using electrochemical grown TiO2 quantum dots (QDs) mixed in Titanium tetraisopropoxide (TTIP). TiO2 QDs have grown electrochemically in potassium chloride (KCl) solution and then mixed in TTIP with various concentrations (0%, 2.5%, 5.0%, 7.5%, and 10%). The photoconversion efficiency (PCE) of PSCs was improved to 14.05 % while 7.5% of TiO2 QDs passivation with the champion performance of 15.72% (a significant improvement from the 0% standard condition). The PSCs also lasted over 200 hours, demonstrating increased stability with the proposed recipe. This work demonstrated the successful delivery of alkaline passivation using TiO2 QDs as an agent for improving PSCs.