Upendra Kumar Pandey
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Explore the profile of Upendra Kumar Pandey including associated specialties, affiliations and a list of published articles.
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11
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12
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Recent Articles
1.
De J, De R, Bala I, Gupta S, Yadav R, Kumar Pandey U, et al.
Small Methods
. 2024 Dec;
:e2401634.
PMID: 39676445
The future of next-generation electronics relies on low-cost organic semiconductors that are tailored to simultaneously provide all requisite optoelectronic properties, focusing greatly on ambipolar charge-transport and solution processability. In this...
2.
Kumar Behera P, Yadav K, Roy M, Shankar Rao D, Kumar Pandey U, Sudhakar Achalkumar A
Chemistry
. 2024 Dec;
31(14):e202402557.
PMID: 39670313
This study presents a selenium-annulated perylene bisimide (PBI-Se) stabilizing room temperature columnar hexagonal phase with exceptionally low clearing temperature. The synthesis of this Se-annulated PBI (PBI-Se) was accomplished using the...
3.
Kodali P, Choppella S, Ankita , Kumar D, Kumar Pandey U, Ravva M, et al.
Chem Commun (Camb)
. 2024 Sep;
60(82):11726-11729.
PMID: 39318232
For the first time, we present the detailed synthesis, photophysical, electrochemical, host-guest and charge transport properties of spiro[fluorene-9,9'-xanthene] (SFX) and carbazole macrocycle SPS-NR-02. The electron and hole transport values measured...
4.
Sharma H, Ankita , Mittal V, Kumar Pandey U, Das S
Org Lett
. 2024 Mar;
26(13):2617-2622.
PMID: 38512391
Described herein is a straightforward approach to synthesizing three biindenofluorene (BIF) derivatives, composed of antiaromatic indenofluorene units, which are the first non-alternant congeners of known bipentacene. Dimerization of indeno[1,2-]fluorene and...
5.
Kumar Behera P, Yadav K, Patra A, Gupta R, Shankar Rao D, Kumar S, et al.
Chemistry
. 2023 Aug;
29(61):e202302187.
PMID: 37529862
A new series of highly soluble perylene anti-bis(4,5-dialkoxybenzimidazole)s bearing branched flexible chains stabilizing room temperature columnar hexagonal phase and with balanced ambipolar charge carrier mobility is reported for the first...
6.
Kumar Behera P, Yadav K, Kumar N, Gupta R, Shankar Rao D, Kumar Pandey U, et al.
Chem Commun (Camb)
. 2023 Apr;
59(40):6028-6031.
PMID: 37098750
A self-assembled ambipolar organic semiconductor based on naphthalene diimide with low clearing temperature, solution processability, and high molar extinction coefficient, exhibiting a room temperature columnar hexagonal liquid crystalline phase is...
7.
Kumar Behera P, Yadav K, Shankar Rao D, Kumar Pandey U, Sudhakar A
Chem Asian J
. 2023 Mar;
18(9):e202300086.
PMID: 36919823
Highly electron-deficient heteroatom (N, S, Se) bay-annulated PBIs exhibiting ordered columnar phase over a wide mesomorphic range including ambient temperature are reported in this manuscript. These compounds with six peripheral...
8.
Tripathi N, Gupta V, Tarun T, Kumar Pandey U, Sengupta S
Chemistry
. 2023 Feb;
29(26):e202203951.
PMID: 36734091
Three non-fused A-D-A'-D-A π-conjugated metal-free small molecules BT-IT1, BT-IBT2 and BT2F-IBT3 have been synthesized and their absorption characteristics and redox properties, as well as charge carrier mobilities have been investigated....
9.
Bala I, De J, Gupta S, Singh H, Kumar Pandey U, Pal S
Chem Commun (Camb)
. 2020 Apr;
56(42):5629-5632.
PMID: 32300763
Tetrathienoanthracene (TTA), a new discotic core fragment, is explored that shows a remarkably high hole mobility (μh) of 4.22 cm2 V-1 s-1 at room temperature when used in space-charge limited...
10.
De J, Bala I, Gupta S, Kumar Pandey U, Pal S
J Am Chem Soc
. 2019 Nov;
141(47):18799-18805.
PMID: 31682432
Heterocoronene, a new redox-active core fragment, is utilized for the synthesis of room-temperature columnar discotic liquid crystals (DLCs). Three wedge-shaped side chains having different lengths of alkyl tails are introduced...