Polymeric amorphous carbon as p-type window within amorphous silicon solar cells
Khan, RUA, Silva, SRP and van Swaaij, RACMM (2003) Polymeric amorphous carbon as p-type window within amorphous silicon solar cells APPLIED PHYSICS LETTERS, 82 (22). 3979 - 3981. ISSN 0003-6951
|PDF - Published Version|
Official URL: http://apl.aip.org/resource/1/applab/v82/i22/p3979...
Amorphous carbon (a-C) has been shown to be intrinsically p-type, and polymeric a-C ~PAC! possesses a wide Tauc band gap of 2.6 eV. We have replaced the p-type amorphous silicon carbide layer of a standard amorphous silicon solar cell with an intrinsic ultrathin layer of PAC. The thickness of the p layer had to be reduced from 9 to 2.5 nm in order to ensure sufficient conduction through the PAC film. Although the resulting external parameters suggest a decrease in the device efficiency from 9.2% to 3.8% due to a reduced value of open-circuit voltage, the spectral response shows an improvement in the 400–500-nm wavelength range, as a consequence of the wider band gap of the PAC layer.
|Uncontrolled Keywords:||Science & Technology, Physical Sciences, Physics, Applied, Physics, DIAMOND-LIKE CARBON, HYDROGENATED CARBON, FILMS|
|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Deposited By:||Melanie Hughes|
|Deposited On:||19 Oct 2010 10:38|
|Last Modified:||16 Feb 2013 15:45|
Repository Staff Only: item control page