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Publication Title | QUANTUM DOT SOLAR CELL

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Text | QUANTUM DOT SOLAR CELL | 001



(12)Unlted States Patent Serban et al.

(54) QUANTUM ])()TSOLAR CELL

_

(75) Inventors.Bogdan.Serban,Bucharest(RO),Mlhal

N- Mlhalla, Bucharest Stephan Dan Costea, Bucharest (RO); Mircea Bercu, Bucharest (RO)

' . - (73)Asslgnee.?oneywellIlgermétlonalInc.,

(10)PatentN0.2 US 8,227,686B2 (45) Date of Patent: Jul. 24, 2012

_ (*) Notlce:

Subjecttoanydlsclalmer,thetermofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 361 days.

2/2005 Mitevaetal. 2/2006 Guietal. 8/2006 Choeta1,

(Continued)

FOREIGN PATENT DOCUMENTS 1473745 11/2004

(Continued)

OTHER PUBLICATIONS

(21) Appl.No..12/695,914

(22) Filed: Jan.28,2010

EP

(65)

PriorPublicationData Us 2010/0193025A1 Aug 5’2010

RelatedUS.ApplicationData

OrnstOWn, (U ) _ _ _

2005/0028862 A1 _ 2006/0021647 A1

(60) ProvisionalapplicationNo.61/149,899,?ledonFeb. 4,2009.

(51) Int.Cl.

H01L 31/00 (2006.01)

(52) US.Cl...136/256;136/263

(58) FieldofClassi?cationSearch ..136/256,

(56)

_ References Clted

US. PATENT DOCUMENTS

4,427,749 A 1/1984 GfaetZeleta1~

4’927’721 A 5/1990 Gretzelet31'

5,677,545 A 10/1997 Shletal. 6,278,056 B1 8/2001 Sugiharaeta1‘

_ _ _ 136/263 SeeaPPhCaUOn?leforCompleteSearchhlstol'y-

6,566,595 B2

6,861,722 B2 6,919,119B2

5/2003 Suzuki 3/2005 GraetZeletal. 7/2005 Kalkanetal.

[

_ - -

8/2005 GraetZeletal. 4/2006 Kobayashi 5/2006 GraetZeletal.

5555Ee 3 :1 J I 3 3

555555 uuuuuu

222222 OOOOOO IIIIII

Flexible/transparentsubstrate \

Block layer

Electron conductor

2006/016997l Al

US008227686B2

6,936,143 B1

7,032,209 B2

7,042,029 B2

7,091,136B2 8/2006Basol

Yamanakaet31‘ 4/2007 Chang eta1,

9/2007 Lenhardetal. 12/2008 Roscheisenetal.

7,202,943 B2

7,268,363 B2

7,462,774 B2

7,563,507 B2

7,65,860B2 200“)Parsons

7/2009 Emricketa1.

Banerjee et al., “Synthesis and Characterization of Carbon Nanotube-Nanocrystal Heterostructures,” Nano Letters, vol. 2, No. 3,PP 195-200,2002

(Continued)

PrimaryExaminer* NathanM Nutter (74)Attorney,Agent,orFirm* SeagerTufte& Wickhem LLC

(57) ABSTRACT

A solarcellisdisclosedthatmayincludeaquantumdot,an

electron conductor, and a bifunctional ligand disposed

betWeen the quantum dot and the electron conductor. The

bifunctional ligand may include a ?rst anchor group that

bonds to the quantum dot and a second anchor group that

bondstotheelectronconductor.The solarcellmay includea

holeconductorthatiscon?guredtoreducethequantumdot

oncethequantumdotabsorbsaphotonandejectsanelectron

thr hth b.fu t. 11. d d. t th 1 t d oug e 1 nclona lgan an 1n0 eeecroncon uc

tor.Theholeconductormaybeap-typepolymer. 20Claims,2DrawingSheets

QD with functionalized linker

Reflectlve/protective/contact \ } Hole Conductor

Image | QUANTUM DOT SOLAR CELL



quantum-dot-solar-cell
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