David Giovanni

Appointment: Research Fellow

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1 to 7 of 7 Results

Replication Data for: Origins of the Long-Range Exciton Diffusion in Perovskite Nanocrystal Films: Photon Recycling vs Exciton Hopping Feb 25, 2021 Giovanni, David; Righetto, Marcello; Zhang, Qiannan; Lim, Jia Wei Melvin; Ramesh, Sankaran; Sum, Tze Chien, 2021, "Replication Data for: Origins of the Long-Range Exciton Diffusion in Perovskite Nanocrystal Films: Photon Recycling vs Exciton Hopping", https://doi.org/10.21979/N9/6QTW2E, DR-NTU (Data), V1 The outstanding optoelectronic performance of lead halide perovskites lies in their exceptional carrier diffusion properties. As the perovskite material dimensionality is reduced to exploit the quantum confinement effects, the disruption to the perovskite lattice, often with insu...
Replication Data for: Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites Apr 20, 2020 Giovanni, David; Chong, Wee Kiang; Liu, Yu Yang Fredrik; Dewi, Herlina Arianita; Yin, Ting Ting; Shen, Ze Xiang; Mathews, Nripan; Gan, Chee Kwan; Sum, Tze Chien, 2020, "Replication Data for: Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites", https://doi.org/10.21979/N9/DX8UBN, DR-NTU (Data), V1 Raw Data for the published paper: "Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites"
Replication Data for: Role of Electron−Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like SpinSplit Lead Halide Perovskites Exhibiting DualBand Photoluminescence Apr 18, 2020 Julian A. Steele; Pascal Puech; Bartomeu Monserrat; Bo Wu; Ruo Xi Yang; Thomas Kirchartz; Haifeng Yuan; Guillaume Fleury; David Giovanni; Eduard Fron; Masoumeh Keshavarz; Elke Debroye; Guofu Zhou; Sum, Tze Chien; Aron Walsh; Johan Hofkens; Maarten B. J. Roeffaers, 2020, "Replication Data for: Role of Electron−Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like SpinSplit Lead Halide Perovskites Exhibiting DualBand Photoluminescence", https://doi.org/10.21979/N9/IHR5FK, DR-NTU (Data), V1 This dataset contained part of the data which were obtained by NTU.
Replication Data for: Hot Carrier Extraction in CH3NH3PbI3 Unveiled by Pump-Push-Probe Spectroscopy Dec 5, 2019 - Lim Swee Sien Lim, Swee Sien; Giovanni, David; Zhang, Qiannan; Solanki, Ankur; Jamaludin, Nur Fadilah; Lim, Jia Wei Melvin; Mathews, Nripan; Mhaisalkar, Subodh; Pshenichnikov, Maxim S.; Sum, Tze Chien, 2019, "Replication Data for: Hot Carrier Extraction in CH3NH3PbI3 Unveiled by Pump-Push-Probe Spectroscopy", https://doi.org/10.21979/N9/RZUNHG, DR-NTU (Data), V1 Halide perovskites recently emerged as a promising material for development in hot carrier solar cells (HCSCs), where the excess energy of above-bandgap photons is harvested before being wasted to heat to enhance device efficiency. Presently, HC separation and transfer processes...
Replication Data For: Ultrafast long-range spin-funneling in solution-processed Ruddlesden-Popper halide perovskites Aug 1, 2019 - SUM Tze Chien Giovanni, David; Lim, Jia Wei Melvin; Yuan, Zhongcheng; Lim, Swee Sien; Righetto, Marcello; Qing, Jian; Zhang, Qiannan; Dewi, Herlina Arianita; Gao, Feng; Mhaisalkar, Subodh Gautam; Mathews, Nripan; Sum, Tze Chien, 2019, "Replication Data For: Ultrafast long-range spin-funneling in solution-processed Ruddlesden-Popper halide perovskites", https://doi.org/10.21979/N9/DUMOTD, DR-NTU (Data), V1 Room-temperature spin-based electronics is the vision of spintronics. Presently, there are few suitable material systems. Herein, we reveal that solution-processed mixed-phase Ruddlesden-Popper perovskite thin-films transcend the challenges of phonon momentum-scattering that limi...
Replication Data for: Tunable room-temperature spin-selective optical Stark effect in solution-processed layered halide perovskites May 31, 2019 - SUM Tze Chien Giovanni, David; Chong, Wee Kiang; Dewi, Herlina Arianita; Thirumal, Krishnamoorthy; Neogi, Ishita; Ramesh, Ramamoorthy; Mhaisalkar, Subodh; Mathews, Nripan; Sum, Tze Chien, 2019, "Replication Data for: Tunable room-temperature spin-selective optical Stark effect in solution-processed layered halide perovskites", https://doi.org/10.21979/N9/BWMJDV, DR-NTU (Data), V2 Ultrafast spin manipulation for opto–spin logic applications requires material systems that have strong spinselective light-matter interaction. Conventional inorganic semiconductor nanostructures [for example, epitaxial II-VI quantum dots and III-V multiple quantum wells (MQWs)]...
Replication Data for: Dominant factors limiting the optical gain in layered two-dimensional halide perovskite thin films Sep 10, 2018 - SUM Tze Chien Chong, Wee Kiang; Thirumal, Krishnamoorthy; Giovanni, David; Goh, Teck Wee; Liu, Xinfeng; Mathews, Nripan; Mhaisalkar, Subodh; Sum, Tze Chien, 2018, "Replication Data for: Dominant factors limiting the optical gain in layered two-dimensional halide perovskite thin films", https://doi.org/10.21979/N9/WJSVVC, DR-NTU (Data), V1 Semiconductors are ubiquitous gain media for coherent light sources. Solution-processed three-dimensional (3D) halide perovskites (e.g., CH3NH3PbI3) with their outstanding room temperature optical gain properties are the latest members of this family. Their two-dimensional (2D) l...

Replication Data for: Origins of the Long-Range Exciton Diffusion in Perovskite Nanocrystal Films: Photon Recycling vs Exciton Hopping

Feb 25, 2021

Giovanni, David; Righetto, Marcello; Zhang, Qiannan; Lim, Jia Wei Melvin; Ramesh, Sankaran; Sum, Tze Chien, 2021, "Replication Data for: Origins of the Long-Range Exciton Diffusion in Perovskite Nanocrystal Films: Photon Recycling vs Exciton Hopping", https://doi.org/10.21979/N9/6QTW2E, DR-NTU (Data), V1

The outstanding optoelectronic performance of lead halide perovskites lies in their exceptional carrier diffusion properties. As the perovskite material dimensionality is reduced to exploit the quantum confinement effects, the disruption to the perovskite lattice, often with insu...

Replication Data for: Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites

Apr 20, 2020

Giovanni, David; Chong, Wee Kiang; Liu, Yu Yang Fredrik; Dewi, Herlina Arianita; Yin, Ting Ting; Shen, Ze Xiang; Mathews, Nripan; Gan, Chee Kwan; Sum, Tze Chien, 2020, "Replication Data for: Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites", https://doi.org/10.21979/N9/DX8UBN, DR-NTU (Data), V1

Raw Data for the published paper: "Coherent spin and quasi-particle dynamics in solution-processed layered 2D lead halide perovskites"

Replication Data for: Role of Electron−Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like SpinSplit Lead Halide Perovskites Exhibiting DualBand Photoluminescence

Apr 18, 2020

Julian A. Steele; Pascal Puech; Bartomeu Monserrat; Bo Wu; Ruo Xi Yang; Thomas Kirchartz; Haifeng Yuan; Guillaume Fleury; David Giovanni; Eduard Fron; Masoumeh Keshavarz; Elke Debroye; Guofu Zhou; Sum, Tze Chien; Aron Walsh; Johan Hofkens; Maarten B. J. Roeffaers, 2020, "Replication Data for: Role of Electron−Phonon Coupling in the Thermal Evolution of Bulk Rashba-Like SpinSplit Lead Halide Perovskites Exhibiting DualBand Photoluminescence", https://doi.org/10.21979/N9/IHR5FK, DR-NTU (Data), V1

This dataset contained part of the data which were obtained by NTU.

Replication Data for: Hot Carrier Extraction in CH3NH3PbI3 Unveiled by Pump-Push-Probe Spectroscopy

Dec 5, 2019 - Lim Swee Sien

Lim, Swee Sien; Giovanni, David; Zhang, Qiannan; Solanki, Ankur; Jamaludin, Nur Fadilah; Lim, Jia Wei Melvin; Mathews, Nripan; Mhaisalkar, Subodh; Pshenichnikov, Maxim S.; Sum, Tze Chien, 2019, "Replication Data for: Hot Carrier Extraction in CH3NH3PbI3 Unveiled by Pump-Push-Probe Spectroscopy", https://doi.org/10.21979/N9/RZUNHG, DR-NTU (Data), V1

Halide perovskites recently emerged as a promising material for development in hot carrier solar cells (HCSCs), where the excess energy of above-bandgap photons is harvested before being wasted to heat to enhance device efficiency. Presently, HC separation and transfer processes...

Replication Data For: Ultrafast long-range spin-funneling in solution-processed Ruddlesden-Popper halide perovskites

Aug 1, 2019 - SUM Tze Chien

Giovanni, David; Lim, Jia Wei Melvin; Yuan, Zhongcheng; Lim, Swee Sien; Righetto, Marcello; Qing, Jian; Zhang, Qiannan; Dewi, Herlina Arianita; Gao, Feng; Mhaisalkar, Subodh Gautam; Mathews, Nripan; Sum, Tze Chien, 2019, "Replication Data For: Ultrafast long-range spin-funneling in solution-processed Ruddlesden-Popper halide perovskites", https://doi.org/10.21979/N9/DUMOTD, DR-NTU (Data), V1

Room-temperature spin-based electronics is the vision of spintronics. Presently, there are few suitable material systems. Herein, we reveal that solution-processed mixed-phase Ruddlesden-Popper perovskite thin-films transcend the challenges of phonon momentum-scattering that limi...

Replication Data for: Tunable room-temperature spin-selective optical Stark effect in solution-processed layered halide perovskites

May 31, 2019 - SUM Tze Chien

Giovanni, David; Chong, Wee Kiang; Dewi, Herlina Arianita; Thirumal, Krishnamoorthy; Neogi, Ishita; Ramesh, Ramamoorthy; Mhaisalkar, Subodh; Mathews, Nripan; Sum, Tze Chien, 2019, "Replication Data for: Tunable room-temperature spin-selective optical Stark effect in solution-processed layered halide perovskites", https://doi.org/10.21979/N9/BWMJDV, DR-NTU (Data), V2

Ultrafast spin manipulation for opto–spin logic applications requires material systems that have strong spinselective light-matter interaction. Conventional inorganic semiconductor nanostructures [for example, epitaxial II-VI quantum dots and III-V multiple quantum wells (MQWs)]...

Replication Data for: Dominant factors limiting the optical gain in layered two-dimensional halide perovskite thin films

Sep 10, 2018 - SUM Tze Chien

Chong, Wee Kiang; Thirumal, Krishnamoorthy; Giovanni, David; Goh, Teck Wee; Liu, Xinfeng; Mathews, Nripan; Mhaisalkar, Subodh; Sum, Tze Chien, 2018, "Replication Data for: Dominant factors limiting the optical gain in layered two-dimensional halide perovskite thin films", https://doi.org/10.21979/N9/WJSVVC, DR-NTU (Data), V1

Semiconductors are ubiquitous gain media for coherent light sources. Solution-processed three-dimensional (3D) halide perovskites (e.g., CH3NH3PbI3) with their outstanding room temperature optical gain properties are the latest members of this family. Their two-dimensional (2D) l...

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