Cevher, Sevki Can; Hizalan, Gonul; Alemdar Yilmaz, Eda; Cevher, Duygu; Udum Arslan, Yasemin; Toppare, Levent; Yildirim, Erol; Cirpan, Ali published the artcile< A comprehensive study: Theoretical and experimental investigation of heteroatom and substituent effects on frontier orbitals and polymer solar cell performances>, Electric Literature of 27841-33-4, the main research area is benzochalcogendiazole polymer solar cell electronic optical photovoltaic property.
Benzochalcogendiazole derivatives are incorporated with thieno[3,4-c]pyrrole-4,6-dione (TPD) acceptor and 4,8-diethoxybenzo[1,2-b:4,5-b′]dithiophene donor to synthesize tree-component random copolymers. Four different copolymers are synthesized and their electronic, optical and photovoltaic properties are compared. Comparisons are aligned in the course of two different strategies, which are the replacement of benzochalcogendiazole moiety and the modification of side group on benzothiadiazole. Theor. calculations by comparing the HOMO-LUMO levels, band gaps and other electronic descriptors of pristine and 2 + 2 two acceptor-based copolymers are investigated. Random copolymer bearing benzoxadiazole moiety, PO exhibits the highest photovoltaic performance of 8.29% with a Jsc of 14.96 mA cm-2, Voc of 0.87 V, fill factor (FF) of 63.70%. PF possesses the highest Voc with a value of 0.88 V, Jsc of 14.40 mA cm-2, power conversion efficiency (PCE) of 7.32% with 58% FF. PS exhibits average feature with Jsc 11.82 mA cm-2, Voc 0.80 V, FF 50%, and 4.72% PCE. Lowest performing selenadiazole containing random copolymer (PSe) copolymer exhibits maximum PCE as 3.65%. These results demonstrate the promising effectiveness of benzoxadiazole selection as an alternative acceptor unit and F atom substitution for the design of (A1-D)-(A2-D) type random copolymers for organic solar cells.
Journal of Polymer Science (Hoboken, NJ, United States) published new progress about Adiabatic electron affinity. 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, Electric Literature of 27841-33-4.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics