In this section, you can access to the latest technical information related to the FUTURE project topic.

High?Efficiency All?Small?Molecule Organic Solar Cells Based on an Organic Molecule Donor with Alkylsilyl?Thienyl Conjugated Side Chains

Two medium?bandgap p?type organic small molecules H21 and H22 with an alkylsily?thienyl conjugated side chain on benzo[1,2?b:4,5?b?]dithiophene central units are synthesized and used as donors in all?small?molecule organic solar cells (SM?OSCs) with a narrow?bandgap n?type small molecule 2,2??((2Z,2?Z)?((4,4,9,9?tetrahexyl?4,9?dihydro?s?indaceno[1,2?b:5,6?b?]dithiophene?2,7?diyl)bis(methanylylidene))bis(3?oxo?2,3?dihydro?1H?indene?2,1?diylidene))dimalononitrile (IDIC) as the acceptor. In comparison to H21 with 3?ethyl rhodanine as the terminal group, H22 with cyanoacetic acid esters as the terminal group shows blueshifted absorption, higher charge?carrier mobility and better 3D charge pathway in blend films. The power conversion efficiency (PCE) of the SM?OSCs based on H22:IDIC reaches 10.29% with a higher open?circuit voltage of 0.942 V and a higher fill factor of 71.15%. The PCE of 10.29% is among the top efficiencies of nonfullerene SM?OSCs reported in the literature to date.

» Author: Haijun Bin , Jia Yao , Yankang Yang , Indunil Angunawela , Chenkai Sun , Liang Gao , Long Ye , Beibei Qiu , Lingwei Xue , Chenhui Zhu , Chunhe Yang , Zhi?Guo Zhang , Harald Ade , Yongfang Li

» Reference: doi:10.1002/adma.201706361

» Publication Date: 21/05/2018

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es