Abstract
AbstractWith the advantages of adjustable structure and energy level, organic small molecules have been attracting much attention as hole transport materials (HTMs). Azulene was widely used in charge transfer materials for organic electronic devices. In this paper, two HTMs (Azu‐TPA and Azu‐OMeTPA) based on azulene core unit were synthesized by concise routes. Both Azu‐TPA and Azu‐OMeTPA demonstrate suitable molecular orbital energy levels as HTMs. Their hole mobility are over 10−4 cm2 V−1 S−1 and conductivity are over 10−4 S cm−1, comparable with that of Spiro‐OMeTAD. Besides, they exhibit good hydrophobicity. Applied in PSCs, moderate power conversion efficiency (PCE) up to 15.41% was obtained. These results suggest the potential of azulene as a build block to develop HTMs with desirable electronic properties for perovskite solar cells (PSCs).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
