Dual-beam photocurrent spectra in undoped a-Si:H: anomalous band, optical transition energy, and correlation energy

J. Z. Liu; G. Lewen; J. P. Conde; P. Roca i Cabarrocas

doi:10.1016/0022-3093(93)90570-N

Dual-beam photocurrent spectra in undoped a-Si:H: anomalous band, optical transition energy, and correlation energy

J. Z. Liu
, G. Lewen
, J. P. Conde
, P. Roca i Cabarrocas

NEC Research Institute

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D⁺ states, and photocucurrent reduction due to excitations by the probe light from the D⁰ states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D^- defects.

Original language	English
Pages (from-to)	383-386
Number of pages	4
Journal	Journal of Non-Crystalline Solids
Volume	164-166
Issue number	PART 1
DOIs	https://doi.org/10.1016/0022-3093(93)90570-N
Publication status	Published - 2 Dec 1993

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title = "Dual-beam photocurrent spectra in undoped a-Si:H: anomalous band, optical transition energy, and correlation energy",

abstract = "It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D+ states, and photocucurrent reduction due to excitations by the probe light from the D0 states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D- defects.",

author = "Liu, \{J. Z.\} and G. Lewen and Conde, \{J. P.\} and \{Roca i Cabarrocas\}, P.",

year = "1993",

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doi = "10.1016/0022-3093(93)90570-N",

language = "English",

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TY - JOUR

T1 - Dual-beam photocurrent spectra in undoped a-Si:H

T2 - anomalous band, optical transition energy, and correlation energy

AU - Liu, J. Z.

AU - Lewen, G.

AU - Conde, J. P.

AU - Roca i Cabarrocas, P.

PY - 1993/12/2

Y1 - 1993/12/2

N2 - It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D+ states, and photocucurrent reduction due to excitations by the probe light from the D0 states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D- defects.

AB - It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D+ states, and photocucurrent reduction due to excitations by the probe light from the D0 states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D- defects.

U2 - 10.1016/0022-3093(93)90570-N

DO - 10.1016/0022-3093(93)90570-N

M3 - Article

AN - SCOPUS:0027907071

SN - 0022-3093

VL - 164-166

SP - 383

EP - 386

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - PART 1

ER -

Dual-beam photocurrent spectra in undoped a-Si:H: anomalous band, optical transition energy, and correlation energy

Abstract

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