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Neil Irvin Cabello

University of the Philippines Diliman

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Featured researches published by Neil Irvin Cabello.

Applied Physics Express | 2013

Photocarrier Transport and Carrier Recombination Efficiency in Vertically Aligned Si Nanowire Arrays Synthesized Via Metal-Assisted Chemical Etching

Joselito Muldera; Neil Irvin Cabello; Joseph Christopher Ragasa; Arvin Mabilangan; Ma. Herminia Balgos; Rafael Jaculbia; Armando Somintac; Elmer Estacio; Arnel Salvador

The carrier dynamics and recombination characteristics of vertically aligned silicon nanowires are investigated using terahertz emission and photoluminescence spectroscopy, respectively. It is observed that the presence of pores on the walls in two-step-synthesized silicon nanowires greatly affects the carrier dynamics, compared with nanowires synthesized using a one-step process. These pores become efficient carrier recombination sites wherein carriers are collected upon photoexcitation. Additionally, pores effectively diminish the surface electric field thereby inhibiting the terahertz emission. Finally, nanowire-length-dependent terahertz emission is observed only for the one-step-synthesized nanowires whereas the two-step-synthesized nanowire samples exhibited length dependence of their photoluminescence intensity.

Photonics and Nanostructures: Fundamentals and Applications | 2017

Terahertz emission and photoluminescence of silicon nanowires electrolessly etched on the surface of silicon (100), (110), and (111) substrates for photovoltaic cell applications

Philippe Martin B. Tingzon; Lozano López; N. Oliver; Neil Irvin Cabello; Arven Cafe; A. De Los Reyes; Joselito Muldera; Elizabeth Ann Prieto; Christopher T. Que; G. Santos; Masahiko Tani; Arnel Salvador; Elmer Estacio; Armando Somintac

Superlattices and Microstructures | 2016

Porosity dependence of terahertz emission of porous silicon investigated using reflection geometry terahertz time-domain spectroscopy

Arvin Mabilangan; Lorenzo P. Lopez; Maria Angela Faustino; Joselito Muldera; Neil Irvin Cabello; Elmer Estacio; Arnel Salvador; Armando Somintac

Proceedings of the Samahang Pisika ng Pilipinas | 2018

Fabrication of high contrast gratings (HCG) MEMS-tunable 1060 nm VCSELs with 32 nm electrostatic tuning range

Philippe Martin B. Tingzon; Neil Irvin Cabello; John Jairus Eslit; Kevin T. Cook; Jonas Kapraun; Marc Rosales; Armando Somintac; Arnel Salvador; Elmer Estacio; Connie J. Chang-Hasnain

Science Diliman | 2017

Geometric Study on Silicon Nanowires Fabricated via Silver-assisted Electroless Etching

Neil Irvin Cabello; Eloise P. Anguluan; Joseph Christopher Ragasa; Philippe Martin B. Tingzon; Kerr Cervantes; Arvin Jay Escolano; Arnel Salvador; Armando Somintac

Proceedings of the Samahang Pisika ng Pilipinas | 2017

Terahertz transmission of soil samples excavated from Pinagbayanan, San Juan, Batangas

Maria Angela Faustino; Lorenzo Lopez; Neil Irvin Cabello; Alexander De Los Reyes; Arven Cafe; Catherine Tugado; Vito Paolo C. Hernandez; Grace Barretto-Tesoro; Elmer Estacio

Proceedings of the Samahang Pisika ng Pilipinas | 2017

Power-dependent time-resolved photoluminescence spectroscopy of GaAs/AlGaAs asymmetric coupled and uncoupled double quantum wells

Deborah Lumantas; Neil Irvin Cabello; John Daniel Vasquez; Elmer Estacio; Arnel Salvador; Armando Somintac

Proceedings of the Samahang Pisika ng Pilipinas | 2017

Investigation of porosity effects in the photoluminescence and terahertz emission of electrochemically synthesized silicon nanostructures

Neil Irvin Cabello; Philippe Martin B. Tingzon; Kerr Cervantes; Joybelle Lopez; Arven Cafe; Lorenzo Lopez; Joselito Muldera; Arnel Salvador; Elmer Estacio; Armando Somintac

Proceedings of the Samahang Pisika ng Pilipinas | 2017

Investigation on the interface electric field of aluminum-doped zinc oxide/p-type gallium arsenide (AZO/p-GaAs) heterojunctions for terahertz emission applications

Erick John Carlo Solibet; Archel Susvilla Escaro; Lorenzo Lopez; Angela Faustino; Hannah Rillera; Neil Irvin Cabello; Alexander De Los Reyes; Elmer Estacio; Armando Somintac; Arnel Salvador

Proceedings of the Samahang Pisika ng Pilipinas | 2017

Investigation of strain in an oxide-confined GaAs/AlGaAs PIN heterostructure through spot-dependent photoluminescence spectroscopy

Horace Andrew Husay; Vernalyn T. Copa; John Paul Ferrolino; Gerald Catindig; Karl Cedric Gonzales; Neil Irvin Cabello; Kerphy Liandro Patrocenio; Rommel Jagus; Arnel Salvador; Armando Somintac

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Armando Somintac

University of the Philippines Diliman

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Arnel Salvador

University of the Philippines Diliman

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Elmer Estacio

University of the Philippines Diliman

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Arven Cafe

University of the Philippines Diliman

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Joselito Muldera

De La Salle University

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Lorenzo Lopez

University of the Philippines Diliman

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Philippe Martin B. Tingzon

University of the Philippines Diliman

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Alexander De Los Reyes

University of the Philippines Diliman

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Arvin Mabilangan

University of the Philippines Diliman

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Kerr Cervantes

University of the Philippines Diliman

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