Preparation and characteristics of nanotetrapods CdSe-polymer hybrid solar cells

Bulletin of materials science

Jian Nong Wang²  Ai Miao Qin¹  Jun He¹  Li Juan Zhao⁴  Qi Pang³  Chun Jie Liang¹ 

[1] College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China$$College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, ChinaCollege of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China$$;Physics Department, Hong Kong Uniersity of Science and Technology, Clear Water Bay, Hong Kong, China$$Physics Department, Hong Kong Uniersity of Science and Technology, Clear Water Bay, Hong Kong, ChinaPhysics Department, Hong Kong Uniersity of Science and Technology, Clear Water Bay, Hong Kong, China$$;College of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China$$College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China$$College of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, ChinaCollege of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China$$College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China$$College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, ChinaCollege of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China$$College of Chemistry and Material, Yulin Normal University, Yulin, Guangxi 537000, China$$;Applied Physics Department, Donghua University, Shanghai 201620, China$$Applied Physics Department, Donghua University, Shanghai 201620, ChinaApplied Physics Department, Donghua University, Shanghai 201620, China$$

关键词: CdSe;    nanotetrapods;    conjugated polymer;    hybrid solar cells.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Tetrapod-shaped CdSe nanocrystals were obtained using a simple method. HRTEM shows that the average size of the tetrapod core are about 4 nm, widths of the tetrapod arms are about 4 nm and lengths of the arms are about 20 nm. XRD patterns reveal that the OA-capped CdSe tetrapod nanocrystals have a hexagonal wurtzite structure. A hybrid solar cell fabricated based on an 8:1 (w/w) blend of CdSe tetrapod nanocrystals and MEH�?�PPV showed a maximum power conversion efficiency of 0.46% under an air mass 1.5 global condition. The effects of nanocrystal composition on the photovoltaic properties of hybrid solar cells based on nanotetrapods CdSe/MEH�?�PPV were investigated. The power conversion efficiency values initially increased and then decreased, but the �??_OC values linearly decreased from 1.1 to 0.25 V with increased CdSe nanotetrapod in the blend film. The significant quenching of PL with increased nanotetrapod concentration indicated photo-induced charge transfer between MEH�?�PPV and CdSe.

【 授权许可】

Unknown