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Cu2ZnSnS4 Nanoparticles Synthesized by a Novel Diethylenetriamine-Assisted Hydrothermal Method
Feng Liang,Juan Gao,Changwei Zou,Lexi Shao 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.72 No.9
A diethylenetriamine (DETA)-assisted hydrothermal method was explored for the synthesis of kesterite Cu2ZnSnS4 (CZTS) nanoparticles. As complexing agent, DETA was employed to dissolve sulfur and to form complex with metal ions. By introducing DETA to the system, pure CZTS nanoparticles with bandgap of 1.54 eV could be successfully obtained and the agglomeration of samples could be restrained by increasing the concentration of DETA. From the discussion about the experimental results, the formation mechanism of CZTS nanoparticles was proposed. As the reagents used in this experiment is low-toxic and inexpensive, this method was considered as an effective and green route for the synthesis of CZTS nanoparticles.