Understanding the Grains Formation in Doctor-Bladed Perovskite Films for Scalable Fabrication of Efficient Hybrid Solar Cells
Abstract
The development of affordable photovoltaic (PV) cells is one of the most promising longtermenergy solutions for both civilian and military applications. An effective strategy forachieving low-cost PV cells is to adopt a method for the deposition of a naturally a"bundant activelayer film from solutions using a low-temperature process. To this context, organolead trihalideperovskites (CH3NH3P""bX3, or MAPbX3 X=Cl, Br, I, or mixed halide) (OTPs) are extremelyattractive as the next generation of photovoltaic materials due to"" its nature abundant, low costraw materials, and low temperature solution process. The power conversion efficiency of OTPbased sol""ar cells have topped the critical 20%, however they have been broadly fabricated by non-scalable processes. The overarching goal of" this project is to produce 25% power conversionefficiency perovskite solar cells with tuned color using a scalable doctor-blading method. Theproject team demonstrated the feasibility by boosting OTP device efficiency to above 19% in anun-optimized blading pro"cess, and above 20% using spin-coating process during initial work at the University of Nebraska. Successful completion of this proj"ect at the University of North Carolina will lay the groundwork for future mass production of perovskite solar cells byslot-die coa"ting, which is very similar to doctor-blade coating.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 09, 2017
- Source ID
- N000141712619
Entities
People
- Jinsong Huang
Organizations
- Office of Naval Research
- United States Navy
- University of North Carolina