QD co-sensitized and nitrogen doped TiO[sub]2[/sub] nanocomposite for photoelectrochemical hydrogen generation

Jennifer Hensel; Max Canin; Jin Z. Zhang

doi:10.1117/12.859472

24 August 2010 QD co-sensitized and nitrogen doped TiO₂ nanocomposite for photoelectrochemical hydrogen generation

Jennifer Hensel, Max Canin, Jin Z. Zhang

Proceedings Volume 7770, Solar Hydrogen and Nanotechnology V; 777012 (2010) https://doi.org/10.1117/12.859472
Event: SPIE Solar Energy + Technology, 2010, San Diego, California, United States

Abstract

Metal oxides are promising for solar energy conversion applications since they are less expensive and easier to produce than conventional single crystal silicon. In this paper we focused on CdSe and CdS quantum dot (QD) co-sensitized and nitrogen doped TiO₂ (N:TiO₂) nanocomposite photoanodes for photoelectrochemical (PEC) water splitting for hydrogen generation. PEC, UV-vis and scanning electron microscopy (SEM) characterizations of the nanostructured films were carried out. The QD co-sensitized and N-doped TiO₂ photoanodes exhibits increased photocurrent compared to cosensitized TiO₂ without N-doping This is tentatively attributed to enhanced hole transport by oxygen vacancy states that are increased upon nitrogen doping. The enhanced hole transport facilitates overall charge transfer and transport and thereby results in improved photocurrent.

Citation Download Citation

Jennifer Hensel, Max Canin, and Jin Z. Zhang "QD co-sensitized and nitrogen doped TiO₂ nanocomposite for photoelectrochemical hydrogen generation", Proc. SPIE 7770, Solar Hydrogen and Nanotechnology V, 777012 (24 August 2010); https://doi.org/10.1117/12.859472

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available