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@article{ART002694770},
author={Gebreegziabher Gebremedhin Gebremariam and Asemahegne Assefa Sergawie and Ayele Delele Worku and Mani Dhakshnamoorthy and Narzary Rewrewa and Sahu Partha Pratim and Kumar Ashok},
title={Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell},
journal={Carbon Letters},
issn={1976-4251},
year={2020},
volume={30},
number={1},
pages={1-11},
doi={10.1007/s42823-019-00064-6}

TY - JOUR
AU - Gebreegziabher Gebremedhin Gebremariam
AU - Asemahegne Assefa Sergawie
AU - Ayele Delele Worku
AU - Mani Dhakshnamoorthy
AU - Narzary Rewrewa
AU - Sahu Partha Pratim
AU - Kumar Ashok
TI - Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell
JO - Carbon Letters
PY - 2020
VL - 30
IS - 1
PB - Korean Carbon Society
SP - 1
EP - 11
SN - 1976-4251
AB - Polyaniline–graphene quantum dots (PANI–GQDs) are considered as an important candidate for applications in photovoltaic cells. In this work, GQDs were prepared using sono-Fenton reagent from reduced graphene oxide (rGO). PANI–GQD hybrid was also synthesized using the chemical in situ polymerization method. The synthesized materials were characterized using UV–visible (UV–Vis) spectroscopy, photoluminescence (PL) spectroscopy, current–voltage (I–V) characteristic, thermal gravimetric analysis (TGA), Raman spectroscopy, and X-ray difraction (XRD). Dynamic light scattering was also used to estimate the lateral size of GQDs. The enhanced visible-light absorbance in the hybrid was confrmed by UV–Vis analysis and the decrease in intensity around 3461 cm−1 in FT-IR spectra was due to the interaction between functional groups of PANI with GQDs. This led to improved thermal stability and conductivity as observed from TGA and I–V analysis, respectively. Moreover, the Raman spectrum for PANI–GQDs showed a decrease in the peak at ~1348 and ~1572 cm−1 as compared to PANI and GQDs. Similarly, from the XRD profle of PANI–GQDs, a shift in peak was observed due to an alteration in the microstructure. A sandwich device with cell structure glass/ITO/PANI–GQDs/Al was fabricated and its application was tested. Current density–voltage (J–V) curve of the device was measured with a Keithley SMU 2400 unit under an illumina�tion intensity of 100 Wm−2 simulating the AM 1.5 solar spectrum. The hybrid exhibited photovoltaic properties, and 0.857% efciency was observed in response to the applied voltage. This work suggests that PANI can be used as an alternative material for photovoltaic cells.
KW - Polyaniline · Graphene quantum dots · Hybrid · In situ polymerization · Plastic solar cell
DO - 10.1007/s42823-019-00064-6
ER -

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim and Kumar Ashok. (2020). Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell. Carbon Letters, 30(1), 1-11.

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim and Kumar Ashok. 2020, "Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell", Carbon Letters, vol.30, no.1 pp.1-11. Available from: doi:10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim, Kumar Ashok "Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell" Carbon Letters 30.1 pp.1-11 (2020) : 1.

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim, Kumar Ashok. Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell. 2020; 30(1), 1-11. Available from: doi:10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim and Kumar Ashok. "Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell" Carbon Letters 30, no.1 (2020) : 1-11.doi: 10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam; Asemahegne Assefa Sergawie; Ayele Delele Worku; Mani Dhakshnamoorthy; Narzary Rewrewa; Sahu Partha Pratim; Kumar Ashok. Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell. Carbon Letters, 30(1), 1-11. doi: 10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam; Asemahegne Assefa Sergawie; Ayele Delele Worku; Mani Dhakshnamoorthy; Narzary Rewrewa; Sahu Partha Pratim; Kumar Ashok. Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell. Carbon Letters. 2020; 30(1) 1-11. doi: 10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim, Kumar Ashok. Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell. 2020; 30(1), 1-11. Available from: doi:10.1007/s42823-019-00064-6

Gebreegziabher Gebremedhin Gebremariam, Asemahegne Assefa Sergawie, Ayele Delele Worku, Mani Dhakshnamoorthy, Narzary Rewrewa, Sahu Partha Pratim and Kumar Ashok. "Polyaniline–graphene quantum dots (PANI–GQDs) hybrid for plastic solar cell" Carbon Letters 30, no.1 (2020) : 1-11.doi: 10.1007/s42823-019-00064-6