Efficient Inverted Solar Cells Using Benzotriazole-Based Small Molecule and Polymers

• Published in: Polymers Vol. 13; no. 3; p. 393
• Main Authors: Lee, Ja Eun, Kim, Yoon, Na, Yang Ho, Baek, Nam Seob, Jung, Jae Woong, Choi, Yura, Cho, Namchul, Kim, Tae-Dong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 27.01.2021; MDPI
• Subjects: Benzotriazole; Carbazoles; Chemical synthesis; Energy conversion efficiency; Energy transfer; Molecular structure; Molybdenum oxides; Molybdenum trioxide; Morphology; Optical properties; Photovoltaic cells; Polymers; Sensors; Solar cells; Spectrum analysis; Zinc oxide; small-molecule solar cells; polymer solar cells; morphology; molecular aggregation; benzotriazole

We synthesized medium-band-gap donor-acceptor (D-A) -type conjugated polymers (PBTZCZ-L and PBTZCZ-H) consisting of a benzotriazole building block as an acceptor and a carbazole unit as a donor. In comparison with the polymers, a small conjugated molecule (BTZCZ-2) was developed, and its structural,...