A large, ultra-black, efficient and cost-effective dye-sensitized solar module reaches an overall efficiency of ∼12% under 1000 lux of T5 fluorescent light.

A series of anthracene-based organic dyes were prepared via cost-effective synthetic procedures for dye-sensitized cell application. UV−visible and fluorescent spectra, electrochemical properties, and photovoltaic performance of the dyes were studied. Under one sun (100 mW/cm 2 ), the AN-3 small cell outperforms others in the series. Under a dim light condition, the AN-3 modules showed PCE comparable to that of the Z907 modules. After optimizing the synthetic procedure, we found that AN-3 can be manufactured at a fairly low price.

The electrical current leakage and stability are studied for solution OLED with areas of 4.45 mm2, 3×3.2 cm2, and 6×11.5 cm2. All organic layers are deposited by blade coating and initial current leaking defects can be avoided by careful control of the coating conditions. The detrimental burning point caused by a local current short developed after long‐time operation can be avoided by reducing the operation voltage using ternary mixed host. Furthermore, the crystallization defect is reduced by the ternary host. For orange device the binary host is good enough. For area as large as 6 × 11.5 cm2 the OLED no burning point after an operation over 1600 hours.