ようこそ ゲスト さん
雑誌ブラウズ
雑誌 全て
大阪大学 刊行物
ランキング
アクセスランキング
ダウンロードランキング
博士論文のみをさがす
このアイテムのアクセス数:
8
件
(
2021-03-08
07:29 集計
)
このアイテムへのリンクには次のURLをご利用ください:http://hdl.handle.net/11094/76956
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
ProcSPIE_3142_150
pdf
531 KB
13
論文情報
タイトル
Electromodulated photoinduced absorption : A new spectroscopy in π- conjugated polymer/C60 blends
著者
Liess, Martin
Liess, Martin
Lane, Paul A.
Lane, Paul A.
Kafafi, Zakya H.
Kafafi, Zakya H.
Hamaguchi, M.
Hamaguchi, M.
Ozaki, Masanori
Ozaki, Masanori
Yoshino, Katsumi
Yoshino, Katsumi
Vardeny, Z. Valy
Vardeny, Z. Valy
キーワード等
Electromodulated photoinduced absorption (EPA)
C60 doping
Luminescence
Electromodulated photoluminescence (EPL)
Polaron pair polarizability
内容
Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States
Martin Liess, Paul A. Lane, Zakya H. Kafafi, M. Hamaguchi, Masanori Ozaki, Katsumi Yoshino, and Z. Valy Vardeny "Electromodulated photoinduced absorption: a new spectroscopy in π-conjugated polymer/C60 blends", Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997). DOI: https://doi.org/10.1117/12.293356
抄録
We have applied the electromodulated photoinduced absorption (EPA) technique to a variety of C60-doped and pristine luminescent conducting polymer films. EPA measures the electric field-related change of the absorption in the sample as a result of above-gap illumination. An electric field leads to two major effects. One is a possible Stark shift of photoexcitation energy levels, and the other is a change in the photoexcitation decay kinetics, which leads to reduction or enhancement of PA features. This can be due to an electric field enhanced dissociation of the 1Bu exciton or due to a lifetime reduction of polaron pairs. The EPA technique helps to elucidate the photoinduced absorption bands of the charge transfer complex C60- P+, where P+ is a positively charged polaron on the polymer chain. The following thin films were studied by EPA: MEH-PPV/C60, pristine MEH-PPV, PPP/C60, P3OT/C60, PTSi/C60, and pristine PTSi. We found for the two PA bands of polarons that E(LE) + E(HE) equals Eg. We also found that the polarizability of polaron pairs in three orders of magnitude bigger that the polarizability of the 1Bu exciton.
公開者
SPIE
掲載誌名
Proceedings of SPIE - The International Society for Optical Engineering
巻
3142
開始ページ
150
終了ページ
160
刊行年月
1997-11-01
ISSN
0277786X
NCID
AA10619755
DOI (出版社版)
info:doi/10.1117/12.293356
URL
http://hdl.handle.net/11094/76956
言語
英語
カテゴリ
会議発表論文 Conference Paper
論文詳細を表示
著者版フラグ
publisher
NII資源タイプ
会議発表論文
ローカル資源タイプ
会議発表論文
dcmi資源タイプ
text
DCTERMS.bibliographicCitation
Proceedings of SPIE - The International Society for Optical Engineering.3142 P.150-P.160
DC.title
Electromodulated photoinduced absorption : A new spectroscopy in π- conjugated polymer/C60 blends
DC.creator
Liess, Martin
Lane, Paul A.
Kafafi, Zakya H.
Hamaguchi, M.
Ozaki, Masanori
Yoshino, Katsumi
Vardeny, Z. Valy
DC.publisher
SPIE
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
1997-11-01
DC.identifier
info:doi/10.1117/12.293356
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/76956
DC.subject
Electromodulated photoinduced absorption (EPA)
C60 doping
Luminescence
Electromodulated photoluminescence (EPL)
Polaron pair polarizability
DC.description
Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States
Martin Liess, Paul A. Lane, Zakya H. Kafafi, M. Hamaguchi, Masanori Ozaki, Katsumi Yoshino, and Z. Valy Vardeny "Electromodulated photoinduced absorption: a new spectroscopy in π-conjugated polymer/C60 blends", Proc. SPIE 3142, Fullerenes and Photonics IV, (1 November 1997). DOI: https://doi.org/10.1117/12.293356
DCTERMS.abstract
We have applied the electromodulated photoinduced absorption (EPA) technique to a variety of C60-doped and pristine luminescent conducting polymer films. EPA measures the electric field-related change of the absorption in the sample as a result of above-gap illumination. An electric field leads to two major effects. One is a possible Stark shift of photoexcitation energy levels, and the other is a change in the photoexcitation decay kinetics, which leads to reduction or enhancement of PA features. This can be due to an electric field enhanced dissociation of the 1Bu exciton or due to a lifetime reduction of polaron pairs. The EPA technique helps to elucidate the photoinduced absorption bands of the charge transfer complex C60- P+, where P+ is a positively charged polaron on the polymer chain. The following thin films were studied by EPA: MEH-PPV/C60, pristine MEH-PPV, PPP/C60, P3OT/C60, PTSi/C60, and pristine PTSi. We found for the two PA bands of polarons that E(LE) + E(HE) equals Eg. We also found that the polarizability of polaron pairs in three orders of magnitude bigger that the polarizability of the 1Bu exciton.
citation_title
Electromodulated photoinduced absorption : A new spectroscopy in π- conjugated polymer/C60 blends
citation_author
Liess, Martin
Lane, Paul A.
Kafafi, Zakya H.
Hamaguchi, M.
Ozaki, Masanori
Yoshino, Katsumi
Vardeny, Z. Valy
citation_publisher
SPIE
citation_language
英語
citation_date
1997-11-01
citation_journal_title
Proceedings of SPIE - The International Society for Optical Engineering
citation_volume
3142
citation_firstpage
150
citation_lastpage
160
citation_issn
0277786X
citation_doi
info:doi/10.1117/12.293356
citation_public_url
http://hdl.handle.net/11094/76956
citation_keywords
Electromodulated photoinduced absorption (EPA)
C60 doping
Luminescence
Electromodulated photoluminescence (EPL)
Polaron pair polarizability