Document Type


Publication Date

August 2015

Patent Number



H01L 31/18(20130101), H01L 31/0256(20130101), H01L 31/0481(20130101), H01L 51/0003(20130101), H01L 51/4253(20130101), H01L 51/0036(20130101), H01L 51/0037(20130101), H01L 51/441(20130101), H01L 2251/308(20130101), Y02E 10/549(20130101)


The fabrication and characterization of large scale inverted organic solar array fabricated using all-spray process is disclosed, consisting of four layers; ITO-Cs2CO3-(P3HT:PCBM)-modified PEDPT:PSS, on a substrate. With PEDPT:PSS as the anode, the encapsulated solar array shows more than 30% transmission in the visible to near IR range. Optimization by thermal annealing was performed based on single-cell or multiple-cell arrays. Solar illumination has been demonstrated to improve solar array efficiency up to 250% with device efficiency of 1.80% under AM1.5 irradiance. The performance enhancement under illumination occurs only with sprayed devices, indicating device enhancement under sunlight, which is beneficial for solar energy applications. The semi-transparent property of the solar module allows for applications on windows and windshields, indoor applications, and soft fabric substances such as tents, military back-packs or combat uniforms, providing a highly portable renewable power supply for deployed military forces.

Application Number



University of South Florida

Filing Date