Electrical Characterization of N- and B- Doped Amorphous Carbon Film from Palmyra Sugar

Nadiyyah, Khoirotun; Laila, Anna Zakiyatul; Ardiani, Irma Septi; Priyanto, Budhi; Darminto, Darminto

doi:10.4028/www.scientific.net/kem.860.196

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…Even though the efficiency value still seems lower than other organic solar cells, it was a groundbreaking experiment because the biomass was supposed to be an insulator, so no one paid attention to that material. The efficiency was lower due to their experiment, which was done without any optimization either in the thickness or optical energy gap value [7], [8]. Therefore, the investigation of the optimum optical energy gap is necessary before applying it to the homojunction solar cell.…”

Section: Introductionmentioning

confidence: 99%

The Optical Energy Gap of the Semiconducting Intrinsic Layer for Organic Solar Cell Applications

Firdaus

Purwandari

Asih

et al. 2023

CERiMRE

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The optical energy gap of the semiconducting intrinsic layer plays a crucial role in determining the increase in efficiency. The carbon-based biomass can be a choice for the silicon used as solar cell material. Here, we proposed the best biomass that can be used as a semiconductor component in solar cell applications. Coconut shells as bio-waste and palmyra sap, which are available in most areas of Indonesia, can be the best candidates to be considered. The XRD measurement showed both organic materials have an amorphous phase. The coconut shells sample has two peaks that are identical to graphene peaks, therefore this material is called graphenic-like carbon (GC). Furthermore, from the UV-visible spectroscopy, it was shown that both materials have a high transmittance of more than 95%, which indicates that they have transparent properties. Also, the Tauc plot method gives information about the optical energy gap of coconut shell charcoal (GC) and palmyra sap (a:C) which are 2.67 and 1.83 eV, respectively. From this result, palmyra sap becomes promising material to be applied as an intrinsic layer for semiconducting components in solar cell applications.Keywords: Amorphous phase, Coconut shells charcoal, Optical energy gap, Palmyra sugar.

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Section: Introductionmentioning

confidence: 99%

The Optical Energy Gap of the Semiconducting Intrinsic Layer for Organic Solar Cell Applications

Firdaus

Purwandari

Asih

et al. 2023

CERiMRE

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“…The nanospray method is the simplest way to use for deposition processes because it has the dependability to create films with a thickness in the order of nanometers or micrometers, depending on the nozzle size of the equipment, causes no pollution during the process, affordable in cost, and does not require a large power supply. This method was ever used by the previous researcher, using nanospray that is generally used for cosmetic requirements, resulting in a thickness around 300 nm to 2 μm, followed by an increase in time for deposition of 5 to 15 s [12].…”

Section: Introductionmentioning

confidence: 99%

Study on Optical Energy Gap and the Thickness of Boron Doped Graphenic Carbon (B-GC) Film Prepared by Nanospray Method

Firdaus

Purwandari

Asih

et al. 2023

MSF

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Graphenic carbon (GC) provides a potential ability as photovoltaic material due to its tunable properties. Here, we investigate the optical energy gap and the thickness of B-GC material as a p-type in solar cell application. The GC was prepared from old charcoal powders of coconut shells by heating process at 400°C and B-GC powders were prepared by wet mixing method using boric acid as B atom source. B-GC films were then prepared by employing nebulizer as a nanospraying method. All samples were examined through various characterization techniques such as X-Ray Diffarction (XRD), SEM cross section, and UV-Vis spectroscopy. The amorphous characteristic of B-GC is confirmed by broad peaks in XRD patterns, similar to that of reduced graphene oxide (rGO). The present of B along with O and dominant C elements is determined by SEM-EDX result. The B dopants affect the optical bandgap energy (Eg) of GC as an intrinsic material. The thickness of B-GC films was found to be thinner than in a previous study that used a similar method but different equipment. The average thickness of B-GC films is in the range of 127 to 420 nm, followed by an increase in the deposition time for 5 to 20 s. Estimation of the Eg value indicated that B-GC has an energy gap around 2 eV, which is most suitable as a window layer in solar cell applications.

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“…Electrical conductivity is in the range of 0.5 to 0.6 S/cm which in the range of semiconductor. The optical energy gap in the range of 1.4 to 1.7 eV which is a stable area for the development of photovoltaic technology [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Characteristics of the a-C/a-C:B Homojunction from Palmyra Sugar with Nano-Spray Method

Priyanto

Khambali

Chasrun

et al. 2023

KEM

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The a-C/a-C:B homojunction of palmyra sugar has been successfully fabricated using the nanospray method. Palmyra sugar was chosen as the main source of carbon because it is cheap, renewable, abundant and available around the clock. nanospray is used as a deposition method on glass ITO substrates because of several advantages, namely cheap, easy, portable, low power consumption, the deposited layer is more evenly distributed and thinner. Junction samples when in bright conditions [emitted light] showed an increase in current and voltage values compared to dark conditions. Testing the current and voltage of the junction sample shows the characteristics of a rectifier diode. This confirms the results of the test using PES as a doping process with amorphous carbon with boron capable of changing the conduction type from a-C from an intrinsic semiconductor to a p-type semiconductor. Testing the junction sample when irradiated with visible light using a lamp shows symptoms of the photovoltaic effect. Tests directly on the sun when conditions AM 1.5 samples showed symptoms of the photovoltaic effect. This indicates that the a-C/a-C:B amorphous carbon homojunction junction sample functions as a solar cell.

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Electrical Characterization of N- and B- Doped Amorphous Carbon Film from Palmyra Sugar

Cited by 4 publications

References 10 publications

The Optical Energy Gap of the Semiconducting Intrinsic Layer for Organic Solar Cell Applications

The Optical Energy Gap of the Semiconducting Intrinsic Layer for Organic Solar Cell Applications

Study on Optical Energy Gap and the Thickness of Boron Doped Graphenic Carbon (B-GC) Film Prepared by Nanospray Method

Photovoltaic Characteristics of the a-C/a-C:B Homojunction from Palmyra Sugar with Nano-Spray Method

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