Simulation study of the losses and influences of geminate and bimolecular recombination on the performances of bulk heterojunction organic solar cells |
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Zhu Jian-Zhuo†
 , Qi Ling-Hui, Du Hui-Jing‡, Chai Ying-Chun |
| Variations of current density with applied bias of devices with α = 0.01∼ 100/ β = 1 (a) and α = 1/ β = 0.01∼ 100 (b). Inset in panel (b): experimental (scatter, from Ref. [ 25 ]) and simulated (line) current density–voltage characteristics of the device under the stated conditions. Used parameters are: active layer thickness 97 nm, relative dielectric constant 3.4, hole mobility 1.5× 10−4 cm2/V· s, electron mobility 2.0× 10−3 cm2/V· s, band gap 1.0 eV, and efficient density of states 2.5× 1019 cm−3. These parameters are the same as those in Ref. [ 25 ]. |
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