NDLI: Utilizing Wide Band Gap, High Dielectric Constant Nanoparticles as Additives in Organic Solar Cells

Content Provider	Semantic Scholar
Author	Gebhardt, Ryan S. Du, Pengfei Peer, Akshit Rock, Mitch Kessler, Michael R. Biswas, Rana Ganapathysubramanian, Baskar Chaudhary, Sumit
Copyright Year	2015
Abstract	We experimentally and theoretically investigate the effects of utilizing BaTiO3 nanoparticles as additives in polythiophene/fullerene solar cells. BaTiO3 nanoparticles were chosen because of their multifaceted potential for increasing exciton dissociation (due to their high dielectric constant) and light scattering. To achieve stable suspensions for device fabrication, the nanoparticles were functionalized with organic ligands. Solar cells fabricated in air showed ∼40% enhancement in the photocurrent primarily due to string-like aggregates of functionalized BaTiO3 particles that increase light absorption without hindering charge collection. Solar cells fabricated in an inert atmosphere yielded overall more efficient devices, but the string-like aggregates were absent and enhancement in photocurrent was up to ∼6%. Simulations with the excitonic drift-diffusion model demonstrate that a bare nanoparticle significantly increases exciton dissociation, whereas the functional group negates this effect. Simulatio...
Starting Page	23883
Ending Page	23889
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1021/acs.jpcc.5b08581
Volume Number	119
Alternate Webpage(s)	https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1220&context=me_pubs
Alternate Webpage(s)	http://home.eng.iastate.edu/~sumitc/documents/jpcc2015.pdf
Alternate Webpage(s)	http://home.engineering.iastate.edu/~sumitc/documents/jpcc2015.pdf
Alternate Webpage(s)	https://71c074af-a-62cb3a1a-s-sites.googlegroups.com/site/akshitpeer/jpcc5b08581.pdf?attachauth=ANoY7crITv8gsWOMYwx8K-lMDluBWruINNGxT1zhcay65n5ZdvD2YVItHppBcUw9Fz6WdxKrmirmUQLX2_VRekGxXH8sgENwEFJI_5IpYjVBjvQ6-Md1H_YNs1ohqtV4ONbEN1rJzmTV7am_zP_4_8H9p1HojHAZHpXAXycMvxPxnjP_UUJ31QGoWHpMqUaFu6AdYNcl5kQWa4ISMcTBGyH0jBNiSGxA2Q%3D%3D&attredirects=0&d=1
Alternate Webpage(s)	https://doi.org/10.1021/acs.jpcc.5b08581
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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