Stray-light induced artefacts in absorption spectra of crystalline oligothiophenes

被引:33
作者
Sassella, A
Borghesi, A
Spearman, P
Tavazzi, S
机构
[1] Univ Milano Bicocca, INFM, Dipartimento Sci Mat, I-20125 Milan, Italy
[2] Kingston Univ, Sch Pharmaceut Sci, Kingston upon Thames KT1 2EE, Surrey, England
关键词
D O I
10.1140/epjb/e2002-00241-7
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The absorption spectra of oligothiophene single crystals and thin films are discussed in terms of stray light induced experimental artefacts. After typical experimental problems have been overcome, absorption spectra can be collected over a wide spectral range in the UV-Vis region that has often not been included in the literature data. A clear similarity is found between the absorption spectra of single crystals and highly ordered thin films.
引用
收藏
页码:385 / 388
页数:4
相关论文
共 22 条
[1]   Soluble and processable regioregular poly(3-hexylthiophene) for thin film field-effect transistor applications with high mobility [J].
Bao, Z ;
Dodabalapur, A ;
Lovinger, AJ .
APPLIED PHYSICS LETTERS, 1996, 69 (26) :4108-4110
[2]   Epitaxial growth of quaterthiophene thin films by organic molecular beam deposition [J].
Borghesi, A ;
Besana, D ;
Sassella, A .
VACUUM, 2001, 61 (2-4) :193-197
[3]   ORGANIC TRANSISTORS - 2-DIMENSIONAL TRANSPORT AND IMPROVED ELECTRICAL CHARACTERISTICS [J].
DODABALAPUR, A ;
TORSI, L ;
KATZ, HE .
SCIENCE, 1995, 268 (5208) :270-271
[4]   Structural, spectroscopic and device characteristics of octithiophene [J].
Fichou, D ;
Demanze, F ;
Horowitz, G ;
Hajlaoui, R ;
Constant, M ;
Garnier, F .
SYNTHETIC METALS, 1997, 85 (1-3) :1309-1312
[5]   Transient spectroscopy of Frenkel excitons in α-hexathiophene single crystals [J].
Frolov, SV ;
Kloc, C ;
Berg, S ;
Thomas, GA ;
Batlogg, B .
CHEMICAL PHYSICS LETTERS, 2000, 326 (5-6) :558-566
[6]   Excitation dynamics in single molecular crystals of α-hexathiophene from femtoseconds to milliseconds -: art. no. 205203 [J].
Frolov, SV ;
Kloc, C ;
Batlogg, B ;
Wohlgenannt, M ;
Jiang, X ;
Vardeny, ZV .
PHYSICAL REVIEW B, 2001, 63 (20)
[7]   Organic-based electronics a la carte [J].
Garnier, F .
ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (03) :209-215
[8]   Optoelectronic properties of sexithiophene single crystals [J].
Horowitz, G ;
Romdhane, S ;
Bouchriha, H ;
Delannoy, P ;
Monge, JL ;
Kouki, F ;
Valat, P .
SYNTHETIC METALS, 1997, 90 (03) :187-192
[9]   Optical and structural properties of oligothiophene crystalline films [J].
Kanemitsu, Y ;
Shimizu, N ;
Suzuki, K ;
Shiraishi, Y ;
Kuroda, M .
PHYSICAL REVIEW B, 1996, 54 (03) :2198-2204
[10]   Experimental determination of excitonic levels in α-oligothiophenes [J].
Kouki, F ;
Spearman, P ;
Valat, P ;
Horowitz, G ;
Garnier, F .
JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (01) :385-391