Air-stable and efficient inorganic-organic heterojunction solar cells using PbS colloidal quantum dots co-capped by 1-dodecanethiol and oleic acid

被引：34

作者：

Kim, Sungwoo ^{[1
,2
]}

Im, Sang Hyuk ^{[1
]}

Kang, Meejae ^{[2
]}

Heo, Jin Hyuck ^{[1
]}

Seok, Sang Il ^{[1
]}

Kim, Sang-Wook ^{[2
]}

Mora-Sero, Ivan ^{[3
]}

Bisquert, Juan ^{[3
]}

机构：

[1] Korea Res Inst Chem Technol, Div Adv Mat, Taejon 305600, South Korea

[2] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

[3] Univ Jaume 1, Photovolta & Optoelect Devices Grp, Dept Fis, Castellon de La Plana 12071, Spain

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 43期

基金：

新加坡国家研究基金会;

关键词：

RECOMBINATION; PHOTOVOLTAICS; LAYER; CDSE;

D O I：

10.1039/c2cp43223d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

PbS colloidal quantum dot (CQD)-sensitized inorganic-organic heterojunction solar cells fabricated by using the PbS CQDs co-capped by the oleic acid (OA) and 1-dodecanethiol (DT) ligand showed better device stability with aging time under ambient conditions without encapsulation. Furthermore, the device performance is better than the cell fabricated from PbS CQDs without DT ligand. The enhancement of performance in OA and DT co-capped systems is investigated by impedance spectroscopy. An upward displacement of the TiO2 conduction band, with a consequent increase of V-oc, results in the improved performance when CQD with DT are employed.

引用

页码：14999 / 15002

页数：4

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