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- W2488679980 abstract "Abstract Herein, we present a simple, eco-friendly one-step microwave-assisted reduction (MWAR) that can produce silver nanoparticles (Ag NPs) and reduced graphene oxide (rGO) in the form of Ag-rGO composites for application in heterojunction hybrid solar cells. The field-effect transistor fabricated with the MWAR Ag-rGO composite showed p-type behavior with a high mobility of 3.3×10 5 cm 2 V −1 s −1 and conductivity of 9×10 6 S/m which is one-order of magnitude greater than pristine graphene (i.e., 1.59×10 5 S/m). As-synthesized Ag-rGO composite was introduced into the active layer of bulk heterojunction solar cell based on P3HT:PCBM. Compared to the P3HT:PCBM only device (i.e., control device), the Ag-rGO implemented device showed a power conversion efficiency (PCE) of 4.23%, which is about 42% increase over the control device (i.e. PCE=2.98%). This dramatic increase in PCE was found to be mainly due to an increase in short-circuit current ( J sc ) from 9.55 to 12.76 mA/cm 2 (about 33% increase), suggesting that the incorporation of p-type Ag-rGO into the active layer enhances the charge carrier generation and fast extraction of holes to the electrode. Furthermore, the Ag-rGO composite based solar cells without encapsulation showed remarkable air stability with retaining ~90% of its original PCE and ~93% of J sc for 30 days under ambient environment, attributed to gas barrier feature of the randomly distributed graphene sheets." @default.
- W2488679980 created "2016-08-23" @default.
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- W2488679980 date "2016-10-01" @default.
- W2488679980 modified "2023-09-27" @default.
- W2488679980 title "Efficient bulk heterojunction hybrid solar cells with graphene-silver nanoparticles composite synthesized by microwave-assisted reduction" @default.
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- W2488679980 doi "https://doi.org/10.1016/j.nanoen.2016.08.018" @default.
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