@article{ShoaeeSannaSforazzini2021,
  author    = {Shoaee, Safa and Sanna, Anna Laura and Sforazzini, Giuseppe},
  title     = {Elucidating charge generation in green-solvent processed organic solar cells},
  series = {Molecules : a journal of synthetic chemistry and natural product chemistry / Molecular Diversity Preservation International},
  volume    = {26},
  journal   = {Molecules : a journal of synthetic chemistry and natural product chemistry / Molecular Diversity Preservation International},
  number    = {24},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {1420-3049},
  doi       = {10.3390/molecules26247439},
  pages     = {13},
  year      = {2021},
  abstract  = {Organic solar cells have the potential to become the cheapest form of electricity. Rapid increase in the power conversion efficiency of organic solar cells (OSCs) has been achieved with the development of non-fullerene small-molecule acceptors. Next generation photovoltaics based upon environmentally benign "green solvent" processing of organic semiconductors promise a step-change in the adaptability and versatility of solar technologies and promote sustainable development. However, high-performing OSCs are still processed by halogenated (non-environmentally friendly) solvents, so hindering their large-scale manufacture. In this perspective, we discuss the recent progress in developing highly efficient OSCs processed from eco-compatible solvents, and highlight research challenges that should be addressed for the future development of high power conversion efficiencies devices.},
  language  = {en}
}
@article{KoopmanNataliDonatietal.2017,
  author    = {Koopman, Wouter-Willem Adriaan and Natali, Marco and Donati, Giovanni P. and Muccini, Michele and Toffanin, Stefano},
  title     = {Charge-exciton interaction rate in organic field-effect transistors by means of transient photoluminescence electromodulated spectroscopy},
  series = {ACS photonics},
  volume    = {4},
  journal   = {ACS photonics},
  number    = {2},
  publisher = {American Chemical Society},
  address   = {Washington, DC},
  issn      = {2330-4022},
  doi       = {10.1021/acsphotonics.6b00573},
  pages     = {282 -- 291},
  year      = {2017},
  abstract  = {Organic light-emitting transistors (OLETs) offer a huge potential for the design of highly integrated multifunctional optoelectronic systems and of intense nano scale light sources, such as the long-searched-for electrically pumped organic laser. In order to fulfill these promises, the efficiency and brightness of the current state-of-the-art devices have to be increased significantly. The dominating quenching process limiting the external quantum efficiency in OLETs is charge-exciton interaction. A comprehensive understanding of this quenching process is therefore of paramount importance. The present article reports a systematic investigation of charge-exciton interaction in organic transistors employing time resolved photoluminescence electro-modulation (PLEM) spectroscopy on the picosecond time scale. The results show that the injected charges reduce the exciton radiative recombination in two ways: (i) charges may prevent the generation of excitons and (ii) charges activate a further nonradiative channel for the exciton decay. Moreover, the transient PLEM measurements clearly reveal that not only trapped charges, as already reported in literature, but rather the entire injected charge density contributes to the quenching of the exciton population.},
  language  = {en}
}