Synthesis of highly concentrated ZnO nanorod sol by sol-gel method and their applications for inverted organic solar cells

Title
Synthesis of highly concentrated ZnO nanorod sol by sol-gel method and their applications for inverted organic solar cells
Authors
오성근
Keywords
Inverted Organic Photovoltaics; ZnO Thin Films; Morphology Control; Sol-Gel Method
Issue Date
2015-06
Publisher
The Korean Institute of Chemical Engineers
Citation
Korean Chemical Engineering Research, v. 53, NO 3, Page. 350-356
Abstract
The effects of the zinc oxide (ZnO) preparing process on the performance of inverted organic photovoltaic cells (OPVs) were explored. The morphology and size of ZnO nanoparticles were controlled, leading to more efficient charge collection from device and higher electron mobility compared with nanospheres. Nanosized ZnO particles were synthesized by using zinc acetate dihydrate and potassium hydroxide in methanol. Also, water was added into the reaction medium to control the morphology of ZnO nanocrystals from spherical particles to rods, and NH4OH was used to prevent the gelation of dispersion. Solution-processed ZnO thin films were deposited onto the ITO/glass substrate by using spin coating process and then ZnO films were used as an electron transport layer in inverted organic photovoltaic cells. The analyses were carried out by using TEM, FE-SEM, AFM, DLS, UV-Vis spectroscopy, current density-voltage characteristics and solar simulator.
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=HHGHHL_2015_v53n3_350http://hdl.handle.net/20.500.11754/25647
ISSN
0304-128X; 2233-9558
DOI
http://dx.doi.org/10.9713/kcer.2015.53.3.350
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COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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