Graphene-based nanomaterials for solar cells

Adil, Syed Farooq; Khan, Mujeeb; Kalpana, D.

doi:10.1016/b978-0-08-101977-1.00008-9

Cited by 5 publications

(3 citation statements)

References 131 publications

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“…These 2D materials are well-known for their flexibility, mechanical strength, transparency, tunable band gap, high carrier mobility and good conduction of heat and electricity, quantum Hall effect and magnetic anisotropy. [24][25][26][27][28][29] These properties are attributed to their quantum confinement. 30 Owing to these exceptional properties, 2D materials, in particular graphene and its nanostructures, have so far shown potential applications in many fields, which include biomedical, 31,32 electronics, 33 photonics, 34 membrane technology, 35 energy sector 36,37 and sensor designs 38 to name but a few.…”

Section: Two-dimensional (2d) Materialbased Solar Cellsmentioning

confidence: 99%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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Section: Two-dimensional (2d) Materialbased Solar Cellsmentioning

confidence: 99%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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“…Zhu et al, 2016), sebagai media pada sistem jaringan (Bai et al, 2019;Shang et al, 2019). Sedangkan dalam sistem pengembangan teknologi, grafen dapat diperankan seabagai piranti dalam dye sensitized solar cells (DSSC) (Adil et al, 2018;Mahmoudi et al, 2018), superkapasitor (Horn et al, 2019;Maddu et al, 2019;W. Yang et al, 2015) , biochip (Ramalingam et al, 2020;Roy et al, 2016) , anti peluru (Bizao et al, 2018;Costa et al, 2019), anti radar (Chen et al, 2017;Xie et al, 2019;D.…”

Section: Pendahuluanunclassified

Sintesis Arang Batok Kelapa menjadi Material Maju Grafen Menggunakan Metode Reduksi Kimia

Arjo¹,

Ramza

Hidayat

2021

JFF

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ABSTRAK-Penelitian ini merupakan bentuk kajian sederhana yang memanfaatkan biomassa pertanian yaitu batok kelapa yang disintesis menjadi material maju grafen. Grafen merupakan salah satu material maju dan terbarukan dalam bidang sains dan teknologi terkini karena kemanfaatannya yang multifungsi. Penelitian ini diawali dengan mengubah biomassa batok kelapa menjadi karbon melalui suatu reaksi pembakaran. Arang hasil dari pembakaran selanjutnya diberikan perlakuan dengan metode reduksi kimia atau metode Hummer tereduksi. Hasil penelitian ini memperlihatkan bentuk morfologi grafen berupa serpihan-serpihan atau dikenal dengan istilah grafen Flakes. Hasil ini terkonfirmasi melalui uji visualisasi SEM, dimana grafen Flakes diperlihatkan dalam formasi tumpukan mengindikasikan struktur multilayer. Hasil uji TEM memperlihatkan jarak antar kisi kristal yang dimilikinya yaitu berkisar pada 2,40 dan 2,46 Å. Berdasarkan pada data jarak antar kisi kristal tersebut, hasil simulasi energi menggunakan prinsip DOS didapatkan bahwan grafen hasil sintesis memiliki energi secara berturut-turut adalah 4,0 eV untuk level konduksi dan 3,3 eV untuk level valensi. Hasil uji optik sifat absorbansi dan fluoresens memperlihatkan grafen memiliki dua puncak serapan utama yang berkorelasi dengan terjadinya transisi energi − * dan − * dari bentuk ikatan C=C dan C-O-C. Adapun pendaran yang dihasilkan melalui uji fluoresensi adalah warna hijau dengan panjang gelombang 525 nm. Secara sederhana rancangan penelitian dapat dikatakan telah berhasil dalam mensintesis grafen dari arang batok kelapa, meskipun belum sempurna dan masih perlu untuk dilakukan kajian kembali. Hasil dari penelitian ini selanjutnya akan dikembangkan lagi menjadi bentuk grafen dengan morfologi yang berpori.

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“…In all cases it was observed an improvement of the polymer mechanical properties. Graphene based nanocomposites were successfully implemented in electrochemical applications [368,369], supercapacitors [370,371], lithium ion batteries [372,373], solar cell [374,375], sensors [376,377], drug delivery and tissue engineering [378][379][380], water purification [381,382].…”

Section: Graphene Oxidementioning

confidence: 99%

The Role of Functionalization in the Applications of Carbon Materials: An Overview

Speranza

2019

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The carbon-based materials (CbMs) refer to a class of substances in which the carbon atoms can assume different hybridization states (sp 1 , sp 2 , sp 3 ) leading to different allotropic structures -. In these substances, the carbon atoms can form robust covalent bonds with other carbon atoms or with a vast class of metallic and non-metallic elements, giving rise to an enormous number of compounds from small molecules to long chains to solids. This is one of the reasons why the carbon chemistry is at the basis of the organic chemistry and the biochemistry from which life on earth was born. In this context, the surface chemistry assumes a substantial role dictating the physical and chemical properties of the carbon-based materials. Different functionalities are obtained by bonding carbon atoms with heteroatoms (mainly oxygen, nitrogen, sulfur) determining a certain reactivity of the compound which otherwise is rather weak. This holds for classic materials such as the diamond, the graphite, the carbon black and the porous carbon but functionalization is widely applied also to the carbon nanostructures which came at play mainly in the last two decades. As a matter of fact, nowadays, in addition to fabrication of nano and porous structures, the functionalization of CbMs is at the basis of a number of applications as catalysis, energy conversion, sensing, biomedicine, adsorption etc. This work is dedicated to the modification of the surface chemistry reviewing the different approaches also considering the different macro and nano allotropic forms of carbon.C 2019, 5, 84 3 of 45 narrow graphite-like interconnected layers. This leads to a closed pore rigid structure that is chemically inert, hard but brittle [48][49][50].Due to the highly resistant, conductive, and inert network, glassy carbons are utilized in a series of rather different applications. They are utilized as electrodes in solid state batteries and in industrial harsh chemical processes where also high temperatures are involved such as crystallization of CaF2, CdS and ZnS. Glassy carbon can be utilized to manufacture high temperature furnace elements. Due to the chemical inertness, glassy carbons are utilized also in fabrication of protheses. Porous carbon and carbon black are much softer. Generally, in industrial applications important is the extension of the surface which is exposed to the external environment. The porous carbon is characterized by a high specific surface area enhancing the interaction with the external medium. Although it possesses a lower conductivity with respect to glassy carbon, the high porosity and the presence of active sites makes it a good material to fabricate electrodes for applications in electrochemistry [51][52][53] and bioelectrodes for sensing and stimulation [54,55].The same holds for the carbon black mainly utilized as additive in rubbers and polymers to improve their mechanical properties, or as a pigment [56] although new potentialities have been recently envisaged [57].Common to all the forms of carbon which are bri...

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Graphene-based nanomaterials for solar cells

Cited by 5 publications

References 131 publications

Fourth-generation solar cells: a review

Fourth-generation solar cells: a review

Sintesis Arang Batok Kelapa menjadi Material Maju Grafen Menggunakan Metode Reduksi Kimia

The Role of Functionalization in the Applications of Carbon Materials: An Overview

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