All-plastic solar cells with a high photovoltaic dynamic range

Optical properties and conductivity of PEDOT:PSS films treated by polyethylenimine solution for organic solar cells

“…1. With the produced low-WF PEDOT:PSS (PEDOT:PSS/PEIE), all-plastic organic solar cells could be demonstrated where all of the components including the substrates, the active layer and the electrodes are plastic [1,18]. With PEI or PEIE modified PEDOT:PSS (PEDOT:PSS/PEIE or PEDOT:PSS/PEI) as the charge recombination layer, efficient organic tandem solar cells could also be fabricated [19][20][21][22].…”

Effect of leakage current and shunt resistance on the light intensity dependence of organic solar cells

“…Such losses are well known to effect all types of solar cells; [4][5][6][7] however, many reports in the OPV literature have seemingly overlooked the influence of leakage currents when interpreting light dependent behavior.…”

“…Such large variation in the leakage current of organic solar cells is not uncommon and is known to be affected by substrate cleaning procedures, film thickness, electrode interlayers, and film deposition techniques. 5,9,10 In the case of the devices here, the range in R sh is most likely a consequence of spin coating from a hot solution which led to variations in film thickness and film density which in turn affects the degree of cathode diffusion into the active layer.…”

“…The decrease of FF with increasing light intensity has been reported to have two origins: series resistance and bimolecular recombination. 1,5,12,16 The effects of bimolecular recombination have gained considerable attention in particular, as bimolecular recombination is known to be a significant loss mechanism in most organic solar cells. 1,17,18 Therefore, the FF dependence on light intensity has been used sporadically to infer differences in recombination dynamics across various organic solar cell systems which are often in turn then attributed to observed morphological changes.…”

An efficient photovoltaic device based on novel D–A–D solution-processable small molecules

“…Organic solar cells are evolving into a promising costeffective alternative to the silicon-based solar cells owing to their low-cost fabrication, light weight, flexibility, largescale production volumes, as well as excellent compatibility with flexible substrates [1][2][3][4][5]. According to the simulated results by Dennler et al, PCE as high as 15 % can be achievable for a polymer tandem cell with optimized materials combination [6].…”