I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTS
The Balanced Burner
Modern combustion technologies help processors safely meet emissions standards, while…
CHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment

Gas-solid reaction makes efficient solar cells

By Tetsuo Satoh |

The research group of Yabing Qi at Okinawa Institute of Science and Technology (OIST; Japan; https://groups.oist.jp/emssu), in collaboration with Shengzhong Liu at Shaanxi Normal University, China, has developed a simple method to fabricate thin (1µm) perovskite films that can be used in perovskite solar cells (PSCs). Small PSCs with the thin films achieve an average power conversion efficiency (PCE) of 19.1±0.4%, with good reproducibility. Moreover, the method enables fabricating (5 × 5)-cm 2 solar modules with an active-area efficiency of 15.3%, which is equivalent to existing PSCs. The un-encapsulated PSCs exhibited an excellent lifetime (T80), exceeding 1,600 h under continuous operation in a dry nitrogen environment. The perovskite films are made by a fast gas-solid reaction of chlorine-incorporated hydrogen lead triiodide, HPbI3(Cl) and methylamine (CH3NH2) gas. The resultant thick and smooth chlorine-incorporated perovskite films exhibited full coverage, improved crystallinity, low surface roughness and low thickness variation. This study not only provides a highly reproducible method to fabricate PSCs and modules with enhanced efficiency and stability — keys for their commercialization — but also gained an in-depth…
Related Content
Making jet fuel from wood
Last month, construction began on a demonstration facility that integrates high-performance entrained-flow gasification technology and Fischer-Tropsch (F-T) synthesis for making…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Non-Contacting Gas Sensors Minimize the Risk of Corrosion to Plant Equipment.
5 ways to Optimize Production of Polymers and Intermediate Petrochemicals
7 Ways to Achieve Process Safety in Chemical Production
Five Reasons Why Chemical Companies Are Switching to Tunable Diode Laser Analyzer Technology
Simplify sensor handling and maintenance with ISM

View More

Live chat by BoldChat