TY - GEN
T1 - A universal surface texture by solution coating
AU - Tao, M.
AU - Zhou, W.
AU - Wang, Y.
AU - Guo, Q.
AU - Yang, H.
N1 - Funding Information:
This work was financially supported by the Natural Science Foundation of Fujian Province (Grant Nos. 2018J05031 , 2018J01729 ); National Natural Science Foundation of China (Grant Nos. 21708043 , 21603033 , 81572944 , U1405229 ); grants from Ministry of Science and Technology (Grant No. 2017YFE0103200 ); and Fuzhou University Testing Fund of precious apparatus (Grant No. 2017T010 ).
PY - 2008
Y1 - 2008
N2 - In this paper we propose a 'build-up' approach for surface texturing on solar cells. By coating solar cells with a monolayer of dielectric microparticles, followed by a dielectric film with a thickness less than the height of the particles, a surface texture can be formed on almost any type of solar cells. More importantly, this texture is prepared by solution coatings, ensuring its low cost. Dielectric particles of various shapes, spherical, pyramidal and conical, can all be used. Current experiments focus on spherical silica microparticles partially immersed in a spin-on glass film. It has been demonstrated that the spherical texture improves the transmittance of quartz substrate between 400 and 1,100 nm and in the incident-angle range of surface normal to at least 30°. Extensive modeling has been performed to optimize the design of and to find the process windows for the coatings. Recent progress includes uniform monolayer coating of silica microparticles on substrates of 6×6 in2 in size by a convective process. Remaining challenges in integration of this texture into solar cells include: 1) index matching with top glass cover and existing antireflective coating; 2) cost-effective synthesis of index-matched dielectric microparticles and 3) large-area uniform coating of monolayer particles on rough poly-Si substrates.
AB - In this paper we propose a 'build-up' approach for surface texturing on solar cells. By coating solar cells with a monolayer of dielectric microparticles, followed by a dielectric film with a thickness less than the height of the particles, a surface texture can be formed on almost any type of solar cells. More importantly, this texture is prepared by solution coatings, ensuring its low cost. Dielectric particles of various shapes, spherical, pyramidal and conical, can all be used. Current experiments focus on spherical silica microparticles partially immersed in a spin-on glass film. It has been demonstrated that the spherical texture improves the transmittance of quartz substrate between 400 and 1,100 nm and in the incident-angle range of surface normal to at least 30°. Extensive modeling has been performed to optimize the design of and to find the process windows for the coatings. Recent progress includes uniform monolayer coating of silica microparticles on substrates of 6×6 in2 in size by a convective process. Remaining challenges in integration of this texture into solar cells include: 1) index matching with top glass cover and existing antireflective coating; 2) cost-effective synthesis of index-matched dielectric microparticles and 3) large-area uniform coating of monolayer particles on rough poly-Si substrates.
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U2 - 10.1109/PVSC.2008.4922595
DO - 10.1109/PVSC.2008.4922595
M3 - Conference contribution
AN - SCOPUS:84879714192
SN - 9781424416417
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
BT - 33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
T2 - 33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
Y2 - 11 May 2008 through 16 May 2008
ER -