Interfacial Engineering of CdO?CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance

Title
Interfacial Engineering of CdO?CdSe 3D Microarchitectures with in situ Photopolymerized PEDOT for an Enhanced Photovoltaic Performance
Authors
Iseul LimDipak V. ShindeSupriya A. PatilDo Young AhnWonjoo LeeNabeen K. Shrestha이중기Sung-Hwan Han
Keywords
Interfacial Engineering; CdO?CdSe; 3D Microarchitectures; in situ Photopolymerized PEDOT
Issue Date
2015-10
Publisher
Photochemistry and photobiology
Citation
VOL 91, 780-785
Abstract
In the present work, porous 3D CdO-microstructured electrode obtained by pyrolysis of 3D CdCO3 microstructures is self-sensitized with CdSe using an ion exchange reaction. After sensitization, an interfacial treatment of the CdO–CdSe interface is performed by depositing a thin film of PEDOT using a photoinduce polymerization route. The microstructured electrode before and after interfacial treatment is characterized using field-emission scanning microscope, energy dispersive X-ray analyzer, contact angle measurement, UV–Visible absorption spectrophotometer and X-ray photoelectron spectrometer. After constructing a liquid junction solar cell with a Pt counter electrode, the photovoltaic performance and interfacial charge transfer kinetics across the CdO–CdSe interface before and after PEDOT treatment are investigated. The results exhibit an improved interfacial charge-transfer resistance after the PEDOT treatment, which leads to enhance the short-circuit current by 15.81% and the power conversion efficiency by 19.82%.
URI
http://pubs.kist.re.kr/handle/201004/50684
ISSN
00318655
Appears in Collections:
KIST Publication > Article
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