@article{Jain:2019:10.1038/s42004-019-0195-3,
author = {Jain, SM and Edvinsson, T and Durrant, JR},
doi = {10.1038/s42004-019-0195-3},
journal = {Communications Chemistry},
pages = {1--7},
title = {Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent},
url = {http://dx.doi.org/10.1038/s42004-019-0195-3},
volume = {2},
year = {2019}
}

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TY  - JOUR
AB  - The very fast evolution in certified efficiency of lead-halide organic-inorganic perovskite solar cells to 24.2%, on par and even surpassing the record for polycrystalline silicon solar cells (22.3%), bears the promise of a new era in photovoltaics and revitalisation of thin film solar cell technologies. However, the presence of toxic lead and particularly toxic solvents during the fabrication process makes large-scale manufacturing of perovskite solar cells challenging due to legislation and environment issues. For lead-free alternatives, non-toxic tin, antimony and bismuth based solar cells still rely on up-scalable fabrication processes that employ toxic solvents. Here we employ non-toxic methyl-acetate solution processed (CH3NH3)3Bi2I9 films to fabricate lead-free, bismuth based (CH3NH3)3Bi2I9 perovskites on mesoporous TiO2 architecture using a sustainable route. Optoelectronic characterization, X-ray diffraction and electron microscopy show that the route can provide homogeneous and good quality (CH3NH3)3Bi2I9 films. Fine-tuning the perovskite/hole transport layer interface by the use of conventional 2,2′,7,7′-tetrakis (N,N′-di-p-methoxyphenylamino)−9,9′-spirbiuorene, known as Spiro-OMeTAD, and poly(3-hexylthiophene-2,5-diyl - P3HT as hole transporting materials, yields power conversion efficiencies of 1.12% and 1.62% under 1 sun illumination. Devices prepared using poly(3-hexylthiophene-2,5-diyl hole transport layer shown 300 h of stability under continuous 1 sun illumination, without the use of an ultra violet-filter.
AU  - Jain,SM
AU  - Edvinsson,T
AU  - Durrant,JR
DO  - 10.1038/s42004-019-0195-3
EP  - 7
PY  - 2019///
SN  - 2399-3669
SP  - 1
TI  - Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
T2  - Communications Chemistry
UR  - http://dx.doi.org/10.1038/s42004-019-0195-3
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000479257900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.nature.com/articles/s42004-019-0195-3
UR  - http://hdl.handle.net/10044/1/72845
VL  - 2
ER  - 

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