Direct pulsed laser crystallization of nanocrystals for absorbent layers in photovoltaics: Multiphysics simulation and experiment

Martin Y. Zhang, Qiong Nian, Yung Shin, Gary J. Cheng

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Direct pulsed laser crystallization (DPLC) of nanoparticles of photoactive material - Copper Indium Selenide (nanoCIS) is investigated by multiphysics simulation and experiments. Laser interaction with nanoparticles is fundamentally different from their bulk counterparts. A multiphysics electromagnetic-heat transfer model is built to simulate DPLC of nanoparticles. It is found smaller photoactive nanomaterials (e.g., nanoCIS) require less laser fluence to accomplish the DPLC due to their stronger interactions with incident laser and lower melting point. The simulated optimal laser fluence is validated by experiments observation of ideal microstructure. Selectivity of DPLC process is also confirmed by multiphysics simulation and experiments. The combination effects of pulse numbers and laser intensity to trigger laser ablation are investigated in order to avoid undesired results during multiple laser processing. The number of pulse numbers is inversely proportional to the laser fluence to trigger laser ablation.

Original languageEnglish (US)
Article number193506
JournalJournal of Applied Physics
Volume113
Issue number19
DOIs
StatePublished - May 21 2013
Externally publishedYes

Fingerprint

absorbents
pulsed lasers
nanocrystals
crystallization
copper indium selenides
lasers
simulation
nanoparticles
fluence
laser ablation
actuators
pulses
melting points
selectivity
heat transfer
electromagnetism
microstructure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Direct pulsed laser crystallization of nanocrystals for absorbent layers in photovoltaics : Multiphysics simulation and experiment. / Zhang, Martin Y.; Nian, Qiong; Shin, Yung; Cheng, Gary J.

In: Journal of Applied Physics, Vol. 113, No. 19, 193506, 21.05.2013.

Research output: Contribution to journalArticle

@article{c6250e3829cf4b5c82f04d9742595a52,
title = "Direct pulsed laser crystallization of nanocrystals for absorbent layers in photovoltaics: Multiphysics simulation and experiment",
abstract = "Direct pulsed laser crystallization (DPLC) of nanoparticles of photoactive material - Copper Indium Selenide (nanoCIS) is investigated by multiphysics simulation and experiments. Laser interaction with nanoparticles is fundamentally different from their bulk counterparts. A multiphysics electromagnetic-heat transfer model is built to simulate DPLC of nanoparticles. It is found smaller photoactive nanomaterials (e.g., nanoCIS) require less laser fluence to accomplish the DPLC due to their stronger interactions with incident laser and lower melting point. The simulated optimal laser fluence is validated by experiments observation of ideal microstructure. Selectivity of DPLC process is also confirmed by multiphysics simulation and experiments. The combination effects of pulse numbers and laser intensity to trigger laser ablation are investigated in order to avoid undesired results during multiple laser processing. The number of pulse numbers is inversely proportional to the laser fluence to trigger laser ablation.",
author = "Zhang, {Martin Y.} and Qiong Nian and Yung Shin and Cheng, {Gary J.}",
year = "2013",
month = "5",
day = "21",
doi = "10.1063/1.4805039",
language = "English (US)",
volume = "113",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "19",

}

TY - JOUR

T1 - Direct pulsed laser crystallization of nanocrystals for absorbent layers in photovoltaics

T2 - Multiphysics simulation and experiment

AU - Zhang, Martin Y.

AU - Nian, Qiong

AU - Shin, Yung

AU - Cheng, Gary J.

PY - 2013/5/21

Y1 - 2013/5/21

N2 - Direct pulsed laser crystallization (DPLC) of nanoparticles of photoactive material - Copper Indium Selenide (nanoCIS) is investigated by multiphysics simulation and experiments. Laser interaction with nanoparticles is fundamentally different from their bulk counterparts. A multiphysics electromagnetic-heat transfer model is built to simulate DPLC of nanoparticles. It is found smaller photoactive nanomaterials (e.g., nanoCIS) require less laser fluence to accomplish the DPLC due to their stronger interactions with incident laser and lower melting point. The simulated optimal laser fluence is validated by experiments observation of ideal microstructure. Selectivity of DPLC process is also confirmed by multiphysics simulation and experiments. The combination effects of pulse numbers and laser intensity to trigger laser ablation are investigated in order to avoid undesired results during multiple laser processing. The number of pulse numbers is inversely proportional to the laser fluence to trigger laser ablation.

AB - Direct pulsed laser crystallization (DPLC) of nanoparticles of photoactive material - Copper Indium Selenide (nanoCIS) is investigated by multiphysics simulation and experiments. Laser interaction with nanoparticles is fundamentally different from their bulk counterparts. A multiphysics electromagnetic-heat transfer model is built to simulate DPLC of nanoparticles. It is found smaller photoactive nanomaterials (e.g., nanoCIS) require less laser fluence to accomplish the DPLC due to their stronger interactions with incident laser and lower melting point. The simulated optimal laser fluence is validated by experiments observation of ideal microstructure. Selectivity of DPLC process is also confirmed by multiphysics simulation and experiments. The combination effects of pulse numbers and laser intensity to trigger laser ablation are investigated in order to avoid undesired results during multiple laser processing. The number of pulse numbers is inversely proportional to the laser fluence to trigger laser ablation.

UR - http://www.scopus.com/inward/record.url?scp=84878401567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878401567&partnerID=8YFLogxK

U2 - 10.1063/1.4805039

DO - 10.1063/1.4805039

M3 - Article

AN - SCOPUS:84878401567

VL - 113

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 19

M1 - 193506

ER -