Search Results - "Ghosh, Hirendra N."

Hot Charge Carrier Extraction from Semiconductor Quantum Dots by Singhal, Pallavi, Ghosh, Hirendra N

“…This article focus on the recent work carried out on hot charge carrier extraction from colloidal quantum dots (QDs). It has been contemplated that the quantum…”
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Hot Carrier Relaxation in CsPbBr3‑Based Perovskites: A Polaron Perspective by Kaur, Gurpreet, Ghosh, Hirendra N

“…Long-standing interpretations for the exceptional photovoltaic and optoelectronic properties showcased by the perovskite family pertain to the underlying…”
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Long-range light-modulated charge transport across the molecular heterostructure doped protein biopolymers by Mondal, Somen, Ghorai, Nandan, Bhunia, Soumyadip, Ghosh, Hirendra. N, Amdursky, Nadav

“…Biological electron transfer (ET) across proteins is ubiquitous, such as the notable photosynthesis example, where light-induced charge separation takes place…”
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Exciton Energy and Charge Transfer in Porphyrin Aggregate/Semiconductor (TiO2) Composites by Verma, Sandeep, Ghosh, Hirendra N

“…A porphyrin aggregate is reported that exhibits novel exciton state properties for light-harvesting applications. This porphyrin aggregate enables control of…”
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Multiple Charge Transfer Dynamics in Colloidal CsPbBr3 Perovskite Quantum Dots Sensitized Molecular Adsorbate by Maity, Partha, Dana, Jayanta, Ghosh, Hirendra N

“…Ultrafast charge-transfer (CT) dynamics has been verified in CsPbBr3 (CPB) quantum dot (QD)–4,5-dibromofluorescein (DBF) composite materials, which form a…”
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Polaron-Mediated Slow Carrier Cooling in a Type‑1 3D/0D CsPbBr3@Cs4PbBr6 Core–Shell Perovskite System by Kaur, Gurpreet, Justice Babu, K, Ghorai, Nandan, Goswami, Tanmay, Maiti, Sourav, Ghosh, Hirendra N

“…Rapid hot carrier cooling is the key loss channel overriding all possible energy loss pathways that limit achievable solar conversion efficiency. Thus, delayed…”
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Ultrafast Carrier Dynamics of the Exciton and Trion in MoS2 Monolayers Followed by Dissociation Dynamics in Au@MoS2 2D Heterointerfaces by Goswami, Tanmay, Rani, Renu, Hazra, Kiran Shankar, Ghosh, Hirendra N

“…Many-body states like excitons, biexcitons, and trions play an important role in optoelectronic and photovoltaic applications in 2D materials. Herein, we…”
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Ultrafast Plasmonic Hot Hole Transfer and Plasmon Dynamics in a Dual Plasmonic Au@p‐Cu2−xSe Heterostructure by Sachdeva, Manvi, Ghorai, Nandan, Kharbanda, Nitika, Ghosh, Hirendra N.

“…Metal‐semiconductor heterostructures have significant potential in harvesting plasmon induced hot charge carriers for photocatalytic and photovoltaic devices…”
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Ultrafast Charge Carrier Delocalization in CdSe/CdS Quasi-Type II and CdS/CdSe Inverted Type I Core–Shell: A Structural Analysis through Carrier-Quenching Study by Maity, Partha, Debnath, Tushar, Ghosh, Hirendra N

“…We have employed femtosecond transient absorption spectrocopy to monitor charge carrier delocalization in CdSe/CdS quasi-type II and CdS/CdSe inverted type I…”
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Ultrafast Charge Transfer Dynamics in Photoexcited CdTe Quantum Dot Decorated on Graphene by Kaniyankandy, Sreejith, Rawalekar, Sachin, Ghosh, Hirendra N

“…We report synthesis and ultrafast charge transfer dynamics of photoexcited CdTe quantum dots (QDs) decorated on graphene. We have synthesized CdTe QD particles…”
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Hot-Hole Extraction from Quantum Dot to Molecular Adsorbate by Singhal, Pallavi, Ghosh, Hirendra N.

“…Ultrafast thermalized and hot‐hole‐transfer processes have been investigated in CdSe quantum dot (QD)/catechol composite systems in which hole transfer from…”
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Ultrafast Hole- and Electron-Transfer Dynamics in CdS–Dibromofluorescein (DBF) Supersensitized Quantum Dot Solar Cell Materials by Maity, Partha, Debnath, Tushar, Ghosh, Hirendra N

“…Ultrafast charge-transfer (CT) dynamics has been demonstrated in CdS quantum dot (QD)–4′,5′-dibromofluorescein (DBF) composite materials, which form a strong…”
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Involvement of Sub-Bandgap States in Subpicosecond Exciton and Biexciton Dynamics of Ternary AgInS2 Nanocrystals by Dana, Jayanta, Debnath, Tushar, Ghosh, Hirendra N

“…We have synthesized three Ag x InS2 (AIS) ternary nanocrystals (NCs), where x varies from 0.25 to 1, and reported their biexcitonic feature which depends on…”
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Ultrafast Relaxation Dynamics in Graphene Oxide: Evidence of Electron Trapping by Kaniyankandy, Sreejith, Achary, S. N, Rawalekar, Sachin, Ghosh, Hirendra N

“…We have employed ultrafast optical pump–probe spectroscopy to study excited dynamics of graphene oxide (GO) and reduced graphene oxide (RGO) dispersed in water…”
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Subpicosecond Exciton Dynamics and Biexcitonic Feature in Colloidal CuInS2 Nanocrystals: Role of In–Cu Antisite Defects by Debnath, Tushar, Maiti, Sourav, Maity, Partha, Ghosh, Hirendra N

“…Charge carrier dynamics of multinary quantum dots like CuInS2 (CIS) nanocrystals (NCs) is not clearly understood, especially in ultrafast time scales. Herein…”
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Electron Trap to Electron Storage Center in Specially Aligned Mn-Doped CdSe d‑Dot: A Step Forward in the Design of Higher Efficient Quantum-Dot Solar Cell by Debnath, Tushar, Maity, Partha, Maiti, Sourav, Ghosh, Hirendra N

“…Specially aligned surface-accumulated Mn-doped CdSe (MnCdSe) quantum dots (QDs) have been synthesized to study the effect of dopant atom on charge-carrier…”
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Ultrafast Charge Carrier Relaxation and Charge Transfer Dynamics of CdTe/CdS Core−Shell Quantum Dots as Studied by Femtosecond Transient Absorption Spectroscopy by Rawalekar, Sachin, Kaniyankandy, Sreejith, Verma, Sandeep, Ghosh, Hirendra N

“…We are reporting ultrafast charge carrier and charge transfer dynamics of the CdTe quantum dot (QD) and type II CdTe/CdS core−shell QD materials with different…”
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Exploring the Carrier Dynamics in Zinc Oxide–Metal Halide-Based Perovskite Nanostructures: Toward Reduced Dielectric Loss and Improved Photocurrent by Aepuru, Radhamanohar, Mondal, Somen, Ghorai, Nandan, Kumar, Viresh, Panda, H. S, Ghosh, Hirendra N

“…Metal halide-based perovskites have emerged as a potential candidate for optoelectronic applications because of their impressive performance achieved by tuning…”
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Biexciton Dissociation Dynamics in Nanohybrid Au–CuInS2 Nanocrystals by Mondal, Somen, Aepuru, Radhamanohar, Dana, Jayanta, Ghorai, Nandan, Ghosh, Hirendra. N

“…Multiexciton harvesting from a semiconductor quantum dot has been a new approach for improving the solar cell efficiency in quantum dot-sensitized solar cells…”
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Ultrafast excited state dynamics of S2 and S1 states of triphenylmethane dyes by Singhal, Pallavi, Ghosh, Hirendra N

“…Excited state dynamics of S2 and S1 states for a series of TPM dyes, pyrogallol red (PGR), bromopyrogallol red (Br-PGR) and aurin tricarboxylic acid (ATC),…”
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