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@article{Eisner:2018:10.1002/solr.201800076,
author = {Eisner, F and Seitkhan, A and Han, Y and Khim, D and Yengel, E and Kirmani, AR and Xu, J and de, Arquer FPG and Sargent, EH and Amassian, A and Fei, Z and Heeney, M and Anthopoulos, TD},
doi = {10.1002/solr.201800076},
journal = {Solar RRL},
title = {Solution-processed In2O3/ZnO heterojunction electron transport layers for efficient organic bulk heterojunction and inorganic colloidal quantum-dot solar cells},
url = {http://dx.doi.org/10.1002/solr.201800076},
volume = {2},
year = {2018}
}

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TY  - JOUR
AB  - We report the development of a solutionprocessed In2O3/ZnO heterojunction electron transport layer (ETL) and its application in high efficiency organic bulkheterojunction (BHJ) and inorganic colloidal quantum dot (CQD) solar cells. Study of the electrical properties of this lowdimensional oxide heterostructure via fieldeffect measurements reveals that electron transport along the heterointerface is enhanced by more than a tenfold when compared to the individual singlelayer oxides. Use of the heterojunction as the ETL in organic BHJ photovoltaics is found to consistently improve the cell's performance due to the smoothening of the ZnO surface, increased electron mobility and a noticeable reduction in the cathode's work function, leading to a decrease in the cells’ series resistance and a higher fill factor (FF). Specifically, nonfullerene based organic BHJ solar cells based on In2O3/ZnO ETLs exhibit very high power conversion efficiencies (PCE) of up to 12.8%, and high FFs of over 70%. The bilayer ETL concept is further extended to inorganic leadsulphide CQD solar cells. Resulting devices exhibit excellent performance with a maximum PCE of 8.2% and a FF of 56.8%. The present results highlight the potential of multilayer oxides as novel ETL systems and lay the foundation for future developments.
AU  - Eisner,F
AU  - Seitkhan,A
AU  - Han,Y
AU  - Khim,D
AU  - Yengel,E
AU  - Kirmani,AR
AU  - Xu,J
AU  - de,Arquer FPG
AU  - Sargent,EH
AU  - Amassian,A
AU  - Fei,Z
AU  - Heeney,M
AU  - Anthopoulos,TD
DO  - 10.1002/solr.201800076
PY  - 2018///
SN  - 2367-198X
TI  - Solution-processed In2O3/ZnO heterojunction electron transport layers for efficient organic bulk heterojunction and inorganic colloidal quantum-dot solar cells
T2  - Solar RRL
UR  - http://dx.doi.org/10.1002/solr.201800076
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000437843000011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
VL  - 2
ER  -

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