The enhancement of photoresponse of an ordered inorganic-organic hybrid architecture by increasing interfacial contacts.
A modified ZnO quantum dot/polythiophene (ZnO/PTh) inorganic-organic hybrid architecture was fabricated by using ordered mesoporous silica (SBA-15) as the retaining template. First, a two-step strategy was developed to synthesize an ordered organic conducting polymer composite (PTh/SBA-15). Then, ZnO quantum dots were in situ formed on the pore walls of the ordered PTh/SBA-15 composite. Photoresponse of the inorganic-organic hybrid was studied with respect to its incident photon to collected electron conversion efficiency (IPCE) and morphology. The presence of SBA-15 proved to be critical for controlling the interfacial morphology and hence enlarging the interfacial area of the inorganic-organic heterojunction. The proposed approach may act as a key method to open up potential applications in photovoltaic devices.
Zhang
Bin
B
Key Laboratory of the Ministry of Education for Polymer Composite and Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, People's Republic of China.
Chen
Xudong
X
Ma
Shaohua
S
Chen
Yujie
Y
Yang
Jin
J
Zhang
Mingqiu
M