(1)Phenothiazine-Based Small Molecules for Organic Solar Cells(2)High Performance Ternary-Blend Polymer Solar Cells with Fullerene and Nonfullerene Acceptors

• Main Authors: LI, YI-CHAN, 李易展
• Other Authors: CHEN, CHIH-PING
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/40576952162805665016

碩士 === 明志科技大學 === 材料工程系碩士班 === 105 === In the first part of this study, we have prepared Phenothiazine -based small molecules and showed their application in organic photovoltaics (OPV). We fabricated PSCs with device structures of ITO (Indium tin oxide)/ZnO/ Phenothiazine -based small molecules /MoO3/Ag, where the ZnO and MoO3 were used to produce the n­type and p­type interlayers. We observed the best power conversion efficiency (PCE) of 2.6 % under simulated AM 1.5G irradiation (100 mW cm-2), with values of Jsc, Voc, and FF of 6.3 mA/cm2, 0.77 V, and 50.4 %, respectively. For the second part of this study, we demonstrated promising photovoltaic properties of ternary-blend polymer solar cells using a new combination of a conjugated polymer (PIDTBT: poly(indacenodithiophene–benzothiadiazole), nonfullerene acceptor (ITIC:3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2’,3’-d’]-s-indaceno [1,2-b:5,6-b’] dithiophene) and fullerene acceptor (PC71BM:[6,6]-Phenyl-C71-butyric acid methyl ester). We fabricated OPV device with structure of ITO (indium tin oxide)/zinc oxide (ZnO)/PIDTBT:ITIC:PC71BM/MoO3/Ag, where the ZnO and MoO3 were used as the n­type and p­type interlayers. We observed the best power conversion efficiency (PCE) of 6.8 % for the PIDTBT:ITIC:PC71BM devices under simulated AM 1.5G irradiation (100 mW cm-2), with values of short circuit current density (Jsc), open circuit voltage (Voc), and fill factor (FF) of 13.8 mA cm-2, 0.87 V, and 56.8 %, respectively.