Organic photovoltaic integrator with three complementary absorption bands to enhance efficiency

摘要: The spectrum of 400 to 1100 nm sunlight can be divided into three bands, each absorbed by organic photovoltaic devices that are particularly efficient under the band in question, achieve higher photoelectric conversion efficiency. bands absorption fullerene (C70), chloroaluminum phthalocyanine (ClAlPc), and tin naphthalocyanine dichloride (SnNcCl2), which have peak values 500, 731, 863 nm, respectively. C70 is a well-known acceptor, whereas ClAlPc SnNcCl2 serve as donors. In combination with another donor made 4,4’-cyclohexylidenebis[N,N-bis(4-methylphenyl)benzenamine] (TAPC), almost transparent 1100 nm, were fabricated had active layers TAPC  :  C70, ClAlPc  :  C70, SnNcCl2  :  C70. After doping proportions these materials been optimized, maximum power efficiency (PCE) 4.52%, 4.3%, 1.33%, properties material dominated differences among device behaviors. Subsequently, overall PCE simulated multiple reflection module was calculated using devices, which, depending on arranged sequence they exposed light reflected another, generated different thus influenced integrator. highest experimental integrator 6.12% 5.9%,