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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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Formamidinium-based planar heterojunction perovskite solar cells with alkali carbonate-doped zinc oxide layer

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Title
Formamidinium-based planar heterojunction perovskite solar cells with alkali carbonate-doped zinc oxide layer
Author
Jeong, JaekiKim, HaeyeonYoon, Yung JinWalker, BrightSong, SeyeongHeo, JungwooPark, Song YiKim, Jae WonKim, Gi-HwanKim, Jin Young
Issue Date
2018
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v.8, no.43, pp.24110 - 24115
Abstract
We herein demonstrate n-i-p-type pLanar heterojunction perovskite solar cells employing spin-coated ZnO nanoparticles modified with various aLkaLi metal carbonates including Li2CO3, Na2CO3, K2CO3 and Cs2CO3, which can tune the energy band structure of ZnO ETLs. Since these metal carbonates doped on ZnO ETLs Lead to deeper conduction bands in the ZnO ETLs, electrons are easily transported from the perovskite active Layer to the cathode electrode. The power conversion efficiency of about 27% is improved due to the incorporation of alkali carbonates in ETLs. As alternatives to TiO2 and n-type metal oxides, electron transport materials consisting of doped ZnO nanoparticles are viable ETLs for efficient n-i-p pLanar heterojunction solar cells, and they can be used on flexible substrates via roll-to-roll processing.
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DOI
http://dx.doi.org/10.1039/c8ra02637h
ISSN
2046-2069
Appears in Collections:
ECHE_Journal Papers
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