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Preparation of electron buffer layer with crystalline ZnO nanoparticles in inverted organic photovoltaic cells

Title
Preparation of electron buffer layer with crystalline ZnO nanoparticles in inverted organic photovoltaic cells
Author
오성근
Keywords
Oxides; Chemical synthesis; Sol-gel growth; Electrical properties; Crystal structure
Issue Date
2017-06
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v. 105, page. 66-71
Abstract
Zinc oxide (ZnO) nanoparticles synthesized through sol-gel method were used to fabricate the electron buffer layer in inverted organic photovoltaic cells (OPVs) after thermal treatment. To investigate the effect of thermal treatment on the formation of crystalline ZnO nanoparticles, the amorphous ZnO nanoparticles were treated via hydrothermal method. The crystalline phase of ZnO with well-ordered structure could be obtained when the amorphous phase of ZnO was processed under hydrothermal treatment at 170 degrees C. The crystalline structure of ZnO thin film in inverted organic solar cell could be obtained under relatively low annealing temperature by using thermally treated ZnO nanoparticles. The OPVs fabricated by using crystalline ZnO nanoparticles for electron buffer layer exhibited higher efficiency than the conventional ZnO nanoparticles. The best power conversion efficiency (PCE) was achieved for 7.16% through the ZnO film using the crystalline ZnO nanoparticles. The proposed method to prepared ZnO nanoparticles (NPs) could effectively reduce energy consumption during the fabrication of OPVs, which would greatly contribute to advantages such as lower manufacturing, costs, higher productivity and application on flexible substrates.
URI
https://www.sciencedirect.com/science/article/abs/pii/S0022369716312732?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/114373
ISSN
0022-3697; 1879-2553
DOI
10.1016/j.jpcs.2017.02.008
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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