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Browsing Kaniska Biswas by Issue Date

Browsing Kaniska Biswas by Issue Date

Now showing items 1-20 of 29

New methods of synthesis and varied properties of carbon quantum dots with high nitrogen content

Dey, Sunita; Chithaiah, Pallellappa; Belawadi, Sunita; Biswas, Kanishka; Rao, C. N. R. (Cambridge Univ Press, 2014)

Doping of a heteroatom such as nitrogen in carbon nanomaterials provides a means to tailor their electronic properties and chemical reactivities. In this article, we present simple methods to synthesize carbon quantum dots ...
Fabrication of large-area PbSe films at the organic-aqueous interface and their near-infrared photoresponse

Jana, Manoj K.; Murali, Banavoth; Krupanidhi, S. B.; Biswas, Kanishka; Rao, C. N. R. (Royal Society of Chemistry, 2014)

An organic-aqueous interfacial reaction at room temperature has been employed to synthesize large-area self-assembled films consisting of PbSe single crystallites. The use of the films for the low-cost fabrication of ...
Luminescence properties of boron and nitrogen doped graphene quantum dots prepared from arc-discharge-generated doped graphene samples

Dey, Sunita; Govindaraj, A.; Biswas, Kanishka; Rao, C. N. R. (Elsevier Science Bv, 2014)

Substitution of heteroatoms in graphene is known to tailor its band gap. Another approach to alter the band gap of graphene is to create zero-dimensional graphene quantum dots (GQDs). Here we present the synthesis and ...
Ultrathin septuple layered PbBi2Se4 nanosheets

Chatterjee, Arindom; Guin, Satya N.; Biswas, Kanishka (Royal Society of Chemistry, 2014)

Layered lead bismuth selenide, PbBi2Se4, an intergrowth compound of PbSe (rocksalt) and Bi2Se3 (hexagonal), is a topological insulator in the bulk phase. We present a simple solution based synthesis of two dimensional (2D) ...
Low-temperature soft-chemical synthesis and thermoelectric properties of barium-filled p-type skutterudite nanocrystals

Banik, Ananya; Biswas, Kanishka (Elsevier Sci Ltd, 2014)

Bulk skutteruclites, such as cobalt triantimonide (CoSb3) are promising inorganic materials for thermoelectric power generation at high temperatures. Generally, bulk CoSb3 is synthesized by high temperature solid state ...
Enhanced thermoelectric performance in p-type AgSbSe2 by Cd-doping

Guin, Satya N.; Chatterjee, Arindom; Biswas, Kanishka (Royal Society of Chemistry, 2014)

Thermoelectric materials can directly convert waste heat into electrical energy and will play a significant role in future energy management. Herein, we have achieved improved thermoelectric performance in p-type Te-free ...
Nanostructuring, carrier engineering and bond anharmonicity synergistically boost the thermoelectric performance of p-type AgSbSe2-ZnSe

Guin, Satya N.; Negi, Devendra S.; Datta, Ranjan; Biswas, Kanishka (Royal Society of Chemistry, 2014)

Thermoelectric "waste heat-to-electrical energy" generation is an efficient and attractive option for robust and environmentally friendly renewable energy production. Simultaneous tailoring of interdependent thermoelectric ...
Green ionothermal synthesis of hierarchical nanostructures of SnS2 and their Li-ion storage properties

Jana, Manoj K.; Rajendra, H. B.; Bhattacharyya, Aninda J.; Biswas, Kanishka (Royal Society of Chemistry, 2014)

Flower-like hierarchical architectures of layered SnS2 have been synthesized ionothermally for the first time, using a water soluble [EMIM]BF4 ionic liquid (IL) as the solvent medium. At lower reaction temperatures, the ...
Direct evidence of strong local ferroelectric ordering in a thermoelectric semiconductor

Aggarwal, Leena; Sekhon, Jagmeet S.; Guin, Satya N.; Arora, Ashima; Negi, Devendra S.; Datta, Ranjan; Biswas, Kanishka; Sheett, Goutam (American Institute of Physics, 2014)

It is thought that the proposed new family of multi-functional materials, namely, the ferroelectric thermoelectrics may exhibit enhanced functionalities due to the coupling of the thermoelectric parameters with ferroelectric ...
Lead-free thermoelectrics: promising thermoelectric performance in p-type SnTe1-xSex system

Banik, Ananya; Biswas, Kanishka (Royal Society of Chemistry, 2014)

Lead chalcogenides are the best performers for thermoelectric power generation at mid/high temperatures; however, environmental concern about Pb prevents its use in large-scale thermoelectric applications. SnTe, a Pb-free ...
Sb deficiencies control hole transport and boost the thermoelectric performance of p-type AgSbSe2

Guin, Satya N.; Biswas, Kanishka (Royal Society of Chemistry, 2015)

Silver antimony selenide, AgSbSe2, a Te free analogue of AgSbTe2, has been known to show a promising thermoelectric performance when it is doped with monovalent (M+) and divalent (M2+) cations in the Sb sublattice. Here, ...
Solution-Based Synthesis of Layered Intergrowth Compounds of the Homologous PbmBi2nTe3n+m Series as Nanosheets

Chatterjee, Arindom; Biswas, Kanishka (Wiley-V C H Verlag Gmbh, 2015)

Layered intergrowth compounds in the homologous PbmBi2nTe3n+m family are interesting because they are examples of natural heterostructures. We present a simple solution-based synthesis of two-dimensional nanosheets of ...
Promising thermoelectric performance in n-type AgBiSe2: effect of aliovalent anion doping

Guin, Satya N.; Srihari, Velaga; Biswas, Kanishka (Royal Society of Chemistry, 2015)

Thermoelectric materials can convert untapped heat to electrical energy, and thus, it will have a significant role in future energy management. Recent industrial applications demand efficient thermoelectric materials which ...
Temperature driven p-n-p type conduction switching materials: current trends and future directions

Guin, Satya N.; Biswas, Kanishka (Royal Society of Chemistry, 2015)

Modern technological inventions have been going through a "renaissance'' period. Development of new materials and understanding of fundamental structure-property correlations are the important steps to move further for ...
Electronic grade and flexible semiconductor film employing oriented attachment of colloidal ligand-free PbS and PbSe nanocrystals at room temperature

Shanker, G. Shiva; Swarnkar, Abhishek; Chatterjee, Arindom; Chakraborty, S.; Phukan, Manabjyoti; Parveen, Naziya; Biswas, Kanishka; Nag, Angshuman (Royal Society of Chemistry, 2015)

Electronic grade semiconductor films have been obtained via the sintering of solution processed PbS and PbSe nanocrystals at room temperature. Prior attempts to achieve similar films required the sintering of nanocrystals ...
Pressure induced structural, electronic topological, and semiconductor to metal transition in AgBiSe2

Rajaji, V.; Malavi, Pallavi S.; Yamijala, Sharma S. R. K. C.; Sorb, Y. A.; Dutta, Utpal; Guin, Satya N.; Joseph, B.; Pati, Swapan Kumar; Karmakar, S.; Biswas, Kanishka; Narayana, Chandrabhas (American Institute Physics, 2016)

We report the effect of strong spin orbit coupling inducing electronic topological and semiconductor to metal transitions on the thermoelectric material AgBiSe2 at high pressures. The synchrotron X-ray diffraction and the ...
High Power Factor and Enhanced Thermoelectric Performance of SnTe-AgInTe2: Synergistic Effect of Resonance Level and Valence Band Convergence

Banik, Ananya; Shenoy, U. Sandhya; Saha, Sujoy; Waghmare, Umesh V.; Biswas, Kanishka (American Chemical Society, 2016)

Understanding the basis of electronic transport and developing ideas to improve thermoelectric power factor are essential for production of efficient thermoelectric materials. Here, we report a significantly large ...
The Origin of Ultralow Thermal Conductivity in InTe: Lone-Pair-Induced Anharmonic Rattling

Jana, Manoj K.; Pal, Koushik; Waghmare, Umesh V.; Biswas, Kanishka (Wiley-V C H Verlag Gmbh, 2016)

Understanding the origin of intrinsically low thermal conductivity is fundamentally important to the development of high-performance thermoelectric materials, which can convert waste-heat into electricity. Herein, we report ...
Unexpected superconductivity at nanoscale junctions made on the topological crystalline insulator Pb0.6Sn0.4Te

Das, Shekhar; Aggarwal, Leena; Roychowdhury, Subhajit; Aslam, Mohammad; Gayen, Sirshendu; Biswas, Kanishka; Sheet, Goutam (American Institute Physics, 2016)

Discovery of exotic phases of matter from the topologically non-trivial systems not only makes the research on topological materials more interesting but also enriches our understanding of the fascinating physics of such ...
The effect of order-disorder phase transitions and band gap evolution on the thermoelectric properties of AgCuS nanocrystals

Guin, Satya N.; Sanyal, Dirtha; Biswas, Kanishka (Royal Society of Chemistry, 2016)

Copper and silver based chalcogenides, chalco-halides, and halides form a unique class of semiconductors, as they display mixed ionic and electronic conduction in their superionic phase. These compounds are composed of ...

Now showing items 1-20 of 29

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