Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices

被引：19

作者：

Chanyawadee, Soontorn ^{[1
]}

Harley, Richard T. ^{[1
]}

Taylor, David ^{[2
]}

Henini, Mohamed ^{[3
]}

Susha, Andrei S. ^{[4
,5
]}

Rogach, Andrey L. ^{[4
,5
]}

Lagoudakis, Pavlos G. ^{[1
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Univ Nottingham, Nottingham Nanotechnol & Nanosci Ctr, Nottingham NG7 2RD, England

[3] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

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

[5] Univ Munich, Ctr Nanosci, D-80799 Munich, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 23期

基金：

英国工程与自然科学研究理事会;

关键词：

cadmium compounds; carrier mobility; gallium arsenide; III-V semiconductors; II-VI semiconductors; photoconducting devices; photovoltaic effects; power conversion; ENERGY-TRANSFER; QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; EMITTING-DIODES; SOLAR-CELLS; POLYMER;

D O I：

10.1063/1.3148368

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A hybrid colloidal CdTe nanocrystal/bulk GaAs p-i-n heterostructure is demonstrated to have potential for highly efficient light harvesting photovoltaic devices. An array of rectangular channels is fabricated on the surface of the GaAs heterostructure penetrating through its active layer and subsequently filled with water soluble CdTe nanocrystals emitting in the near infrared. Photogenerated carriers in the highly absorbing colloidal nanocrystals are efficiently transferred by means of nonradiative energy transfer to the patterned heterostructure possessing high carrier mobility and converted to electrical current. A threefold enhancement of both photocurrent and monochromatic power conversion efficiency has been achieved.

引用

页数：3

共 19 条

[1] Energy-transfer pumping of semiconductor nanocrystals using an epitaxial quantum well
Achermann, M
Petruska, MA
Kos, S
Smith, DL
Koleske, DD
Klimov, VI
[J]. NATURE, 2004, 429 (6992) : 642 - 646
[2] Converting Wannier into Frenkel excitons in an inorganic/organic hybrid semiconductor nanostructure
Blumstengel, S.
Sadofev, S.
Xu, C.
Puls, J.
Henneberger, F.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (23)
[3] Nonradiative exciton energy transfer in hybrid organic-inorganic heterostructures
Chanyawadee, S.
Lagoudakis, P. G.
Harley, R. T.
Lidzey, D. G.
Henini, M.
[J]. PHYSICAL REVIEW B, 2008, 77 (19)
[4] Photocurrent Enhancement in Hybrid Nanocrystal Quantum-Dot p-i-n Photovoltaic Devices
Chanyawadee, S.
Harley, R. T.
Henini, M.
Talapin, D. V.
Lagoudakis, P. G.
[J]. PHYSICAL REVIEW LETTERS, 2009, 102 (07)
[5] Electroluminescence from single monolayers of nanocrystals in molecular organic devices
Coe, S
Woo, WK
Bawendi, M
Bulovic, V
[J]. NATURE, 2002, 420 (6917) : 800 - 803
[6] COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0
[7] *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ
FORSTER, T
[J]. ANNALEN DER PHYSIK, 1948, 2 (1-2) : 55 - 75
[8] Air-stable all-inorganic nanocrystal solar cells processed from solution
Gur, I
Fromer, NA
Geier, ML
Alivisatos, AP
[J]. SCIENCE, 2005, 310 (5747) : 462 - 465
[9] Hybrid inorganic/organic semiconductor heterostructures with efficient non-radiative energy transfer
Heliotis, G
Itskos, G
Murray, R
Dawson, MD
Watson, IM
Bradley, DDC
[J]. ADVANCED MATERIALS, 2006, 18 (03) : 334 - +
[10] Hybrid nanocomposite materials with organic and inorganic components for opto-electronic devices
Holder, Elisabeth
Tessler, Nir
Rogach, Andrey L.
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (10) : 1064 - 1078

← 1 2 →