Synthesis of CdS quantum dots (QDs) via a hot-bubbling route and co-sensitized solar cells assembly
Synthesis of CdS quantum dots (QDs) via a hot-bubbling route and co-sensitized solar cells assembly
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通过热鼓泡途径合成 CdS 量子点 (QD) 和共敏化太阳能电池组装
DOI：
10.1016/j.cej.2013.04.028
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发表时间：
2013-06
影响因子：
15.1
通讯作者：
Xu, Jinzhang
中科院分区：
文献类型：
--
作者：
Yang, Ting;Lu, Mengmeng;Mao, Xiaoli;Liu, Wenhong;Wan, Lei;Miao, Shiding;Xu, Jinzhang
通过热鼓泡法合成了5.0g以上的CdS发光量子点。研究了温度、生长时间、Cd/S投料比、封端配体等合成参数对薄膜光学性能的影响。在低于80°C的温度下，得到了两种CdS“魔法大小”团簇（MSC），其发射波长分别为313 nm和323 nm。当以三辛基氧化膦为配体时，CdS量子点的荧光量子产率达到11.6%。通过配体交换（LE）将制备的CdS量子点转移到水溶液中。为了拓展光伏器件的光谱响应，在介孔TiO 2/SiO2电极上制备了两种不同尺寸的CdS量子点，并制备了共敏化太阳能电池。发现共敏化的SC显示出比单一尺寸的量子点敏化的SC（η=0.53%）更高的转换效率（η=1.55%）。共敏化SC的入射光子-电流转换效率（IPCE）在370 nm和460 nm处显示出两个峰，这类似于两种不同尺寸的量子点的吸收峰。
More than 5.0g luminescent CdS quantum dots (QDs) were synthesized via a hot-bubbling route. The synthetic parameters including temperature, growth time, feeding ratio Cd/S and capping ligands were studied to show great influence on the optical properties. Two types of CdS “magic-sized” clusters (MSCs) emitting at 313nm and 323nm were obtained at temperature lower than 80°C. The PL quantum yields of the CdS QDs reaches 11.6% when trioctyphosphine oxide was used as ligand. The prepared CdS QDs have been transferred into aqueous solution via ligand exchange (LE). To expand the spectral response in photovoltaic devices, two different sizes of CdS QDs were deposited on mesoporous TiO2/SiO2electrode, and the co-sensitized solar cells (SCs) were prepared. It was found that the co-sensitized SCs show a higher conversion efficiency (η=1.55%) than the single sized QDs sensitized SCs (η=0.53%). The incident photon-to-current conversion efficiency (IPCE) of co-sensitized SCs showed two peaks at 370nm and 460nm which resembles the absorption peaks of the two different sized QDs.
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DOI：
10.1002/chin.200706226
发表时间：
2007-02
期刊：
ChemInform
影响因子：
--
作者：
P. Cozzoli;T. Pellegrino;L. Manna
通讯作者：
P. Cozzoli;T. Pellegrino;L. Manna
DOI：
10.1143/jjap.26.396
发表时间：
1987-03-01
期刊：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
影响因子：
--
作者：
ARAI, T;YOSHIDA, T;OGAWA, T
通讯作者：
OGAWA, T
影响因子：
8.6
作者：
Manoj E. Wankhede and;S. Haram
通讯作者：
Manoj E. Wankhede and;S. Haram
影响因子：
8.6
作者：
Li, Liang;Protiere, Myriam;Reiss, Peter
通讯作者：
Reiss, Peter
影响因子：
4.2
作者：
Jun-Guo Song;Xin Song;T. Ling;Xi‐Wen Du;S. Qiao
通讯作者：
Jun-Guo Song;Xin Song;T. Ling;Xi‐Wen Du;S. Qiao