Energy harvesting under dim-light condition with dye-sensitized and perovskite solar cells

Sean Sung Yen Juang, Pei Ying Lin, Yu Chiung Lin, Yu Sheng Chen, Po Shen Shen, Yu Ling Guo, Yu Chun Wu, Peter Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)


We demonstrate highly efficient energy harvesting devices for dim-light application under 200 lux irradiation using dye-sensitized solar cells (DSCs) and perovskite solar cells (PSCs). The high-efficiency DSCs are composed of cobalt-based redox mediators in 3-methoxypropionitrile (MPN) solvent with MK-2 sensitizer. With the introduction of under layer treatment and fine-tuning of compositions in cobalt-based electrolyte, the power conversion efficiency of cobalt-based DSCs achieves 16.0% under 200 lux illumination. That outperforms the best device using the conventional iodine-based electrolyte illuminated with the same light intensity. Especially, cobalt-based electrolyte system exhibits a higher open circuit voltage than iodine-based electrolyte counterpart. We also investigate perovskite solar cells under dim-light condition. PSCs show higher open circuit voltage and short circuit current density than DSCs with efficiency up to 23.4%. In this work, our results demonstrate the promising potential of DSCs and PSCs in the dim-light applications.

Original languageEnglish
Article number209
JournalFrontiers in Chemistry
Issue numberAPR
Publication statusPublished - 2019 Jan 1


All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this