TY - JOUR A1 - Laquai, Frederic A1 - Andrienko, Denis A1 - Deibel, Carsten A1 - Neher, Dieter T1 - Charge carrier generation, recombination, and extraction in polymer-fullerene bulk heterojunction organic solar cells JF - Elementary processes in organic photovoltaics N2 - In this chapter we review the basic principles of photocurrent generation in bulk heterojunction organic solar cells, discuss the loss channels limiting their efficiency, and present case studies of several polymer-fullerene blends. Using steady-state and transient, optical, and electrooptical techniques, we create a precise picture of the fundamental processes that ultimately govern solar cell efficiency. KW - Charge extraction KW - Charge generation KW - Charge recombination KW - Organic solar cells KW - PBT7 KW - PBTTT KW - PCPDTBT Y1 - 2026 SN - 978-3-319-28338-8 SN - 978-3-319-28336-4 U6 - https://doi.org/10.1007/978-3-319-28338-8_11 SN - 0065-3195 VL - 272 SP - 267 EP - 291 PB - Springer CY - Berlin ER - TY - JOUR A1 - Foertig, Alexander A1 - Kniepert, Juliane A1 - Gluecker, Markus A1 - Brenner, Thomas J. K. A1 - Dyakonov, Vladimir A1 - Neher, Dieter A1 - Deibel, Carsten T1 - Nongeminate and geminate recombination in PTB7: PCBM solar cells JF - Advanced functional materials KW - organic semiconductors KW - organic solar cells KW - conjugated polymers KW - charge carrier recombination Y1 - 2014 U6 - https://doi.org/10.1002/adfm.201302134 SN - 1616-301X SN - 1616-3028 VL - 24 IS - 9 SP - 1306 EP - 1311 PB - Wiley-VCH CY - Weinheim ER -