Manual assembly of nanocrystals for enhanced photoelectrochemical efficiency of hematite film

被引：20
作者：
Cha, Hyun Gil
Kang, Myung Jong
Hwang, In Chul
Kim, Hyunsung [1 ]
Yoon, Kyung Byung
Kang, Young Soo
机构：
[1] Sogang Univ, Korea Ctr Artificial Photosynth, Seoul 121742, South Korea
来源：
CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 29期
基金：
新加坡国家研究基金会;
关键词：
SINGLE-CRYSTALS; ALPHA-FE2O3; DYNAMICS;
D O I：
10.1039/c5cc00200a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
To improve the optoelectronic properties of hematite film as a photoanode, hematite film was orientated on the (012) plane by the secondary growth of organized microcrystals. The resultant film showed promising photoelectrochemical effects compared with a randomly oriented one, with a maximum photocurrent of 0.8 mA cm(-2) at 1.23 V vs. RHE under the illumination of 1 sun.
引用
收藏
页码：6407 / 6410
页数：4
相关论文
共 25 条
[1]   Facet Effect of Single-Crystalline Ag3PO4 Sub-microcrystals on Photocatalytic Properties [J].
Bi, Yingpu ;
Ouyang, Shuxin ;
Umezawa, Naoto ;
Cao, Junyu ;
Ye, Jinhua .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (17) :6490-6492
[2]   Facile preparation of Fe2O3 thin film with photoelectrochemical properties [J].
Cha, Hyun Gil ;
Song, Jieun ;
Kim, Hyun Sung ;
Shin, Woonsup ;
Yoon, Kyung Byung ;
Kang, Young Soo .
CHEMICAL COMMUNICATIONS, 2011, 47 (08) :2441-2443
[3]   Building Hematite Nanostructures by Oriented Attachment [J].
Chen, Jun Song ;
Zhu, Ting ;
Li, Chang Ming ;
Lou, Xiong Wen .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (03) :650-653
[4]   Ultrafast studies of photoexcited electron dynamics in γ- and α-Fe2O3 semiconductor nanoparticles [J].
Cherepy, NJ ;
Liston, DB ;
Lovejoy, JA ;
Deng, HM ;
Zhang, JZ .
JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (05) :770-776
[5]   Mesocrystals:: Inorganic superstructures made by highly parallel crystallization and controlled alignment [J].
Cölfen, H ;
Antonietti, M .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (35) :5576-5591
[6]   ELECTROCHEMISTRY AND PHOTOELECTROCHEMISTRY OF IRON(III) OXIDE [J].
DAREEDWARDS, MP ;
GOODENOUGH, JB ;
HAMNETT, A ;
TREVELLICK, PR .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 :2027-2041
[7]   Charge transport in metal oxides:: A theoretical study of hematite α-Fe2O3 -: art. no. 144305 [J].
Iordanova, N ;
Dupuis, M ;
Rosso, KM .
JOURNAL OF CHEMICAL PHYSICS, 2005, 122 (14)
[8]   Carrier dynamics in α-Fe2O3 (0001) thin films and single crystals probed by femtosecond transient absorption and reflectivity [J].
Joly, AG ;
Williams, JR ;
Chambers, SA ;
Xiong, G ;
Hess, WP ;
Laman, DM .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (05)
[9]   FLATBAND POTENTIALS AND DONOR DENSITIES OF POLYCRYSTALLINE ALPHA-FE2O3 DETERMINED FROM MOTT-SCHOTTKY PLOTS [J].
KENNEDY, JH ;
FRESE, KW .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1978, 125 (05) :723-726
[10]   Facile Organization of Colloidal Particles into Large, Perfect One- and Two-Dimensional Arrays by Dry Manual Assembly on Patterned Substrates [J].
Khanh, Nguyen Nguyen ;
Yoon, Kyung Byung .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (40) :14228-+
123