Semiconductor nanocrystals photosensitize C60 crystals

被引：64

作者：

Biebersdorf, Andreas

Dietmuller, Roland

Susha, Andrei S.

Rogach, Andrey L.

Poznyak, Sergey K.

Talapin, Dmitri V.

Weller, Horst

Klar, Thomas A. ^{[1
]}

Feldmann, Jochen

机构：

[1] Univ Munich, Photon & Optoelect Grp, Dept Phys, D-80799 Munich, Germany

[2] Univ Munich, CeNS, D-80799 Munich, Germany

[3] Belarusian State Univ, Phys Chem Res Inst, Minsk 220050, BELARUS

[4] Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany

来源：

NANO LETTERS | 2006年 / 6卷 / 07期

关键词：

D O I：

10.1021/nl060136g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Semiconductor nanocrystals (SCNCs) made of CdSe, CdTe, and InP are used to photosensitize needlelike C-60 crystals. The photocurrent is increased by up to 3 orders of magnitude as compared with C60 crystals without SCNCs. The photocurrent spectrum can be tuned precisely by the SCNC size and material, rendering the SCNC-functionalized C-60 crystals an excellent material for spectrally tuneable photodetectors. We explain the increased photocurrent as a result of photoexcited electrons transferring from the SCNCs to the C-60 crystals and causing photoconductivity, while the complementary holes remain trapped in the SCNCs.

引用

页码：1559 / 1563

页数：5

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