Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 7, 2014
Previous Article Next Article

Solution-processed CdS transistors with high electron mobility

Author affiliations


Solution-processed CdS field effect transistors (FETs) and solar cells are demonstrated via spin-coating and thermal annealing of soluble cadmium thiolate compounds. The synthesis is carried out in one simple step using cadmium oxide and tertiary alkane thiols. The cadmium thiolates are soluble in organic solvents such as chloroform and may be spin-coated, like organic semiconductors, to form thin films. The cadmium thiolate films decompose rapidly at 300 °C to yield semiconducting cadmium sulfide films. FETs are easily fabricated using these films and exhibit electron mobilities of up to 61 cm2 V−1 s−1, which compare favourably to FETs prepared from other solution-processed materials such as organic semiconductors, inorganic nanoparticles or chalcogenide films. Initial attempts to prepare hybrid bilayer solar cells were successfully realized by spin-coating a p-type semiconducting polymer layer on top of the n-type CdS film. These devices show significant photocurrent response from both the CdS and polymer layers, indicating that the CdS films are able to participate in photo-induced electron transfer from the polymer to the CdS layer as well as photo-induced hole transfer from CdS to the polymer layer.

Graphical abstract: Solution-processed CdS transistors with high electron mobility

Back to tab navigation

Supplementary files

Article information

16 Aug 2013
26 Nov 2013
First published
27 Nov 2013

RSC Adv., 2014,4, 3153-3157
Article type

Solution-processed CdS transistors with high electron mobility

B. Walker, G. Kim, J. Heo, G. J. Chae, J. Park, J. H. Seo and J. Y. Kim, RSC Adv., 2014, 4, 3153
DOI: 10.1039/C3RA44436H

Social activity

Search articles by author