TY - JOUR
T1 - Understanding the optics of industrial black silicon
AU - Payne, David
AU - Fung, Tsun Hang
AU - Khan, Muhammad Umair
AU - Cruz-Campa, Jose
AU - McIntosh, Keith
AU - Abbott, Malcolm
N1 - Monograph title: "SiliconPV 2018: the 8th International Conference on Crystalline Silicon Photovoltaics". Editor: Christophe Ballif, Rolf Brendel, Stefan Glunz, Giso Hahn, Jef Poortmans, Pierre-Jean Ribeyron and Arthur Weeber, ISBN: 9780735417151.
PY - 2018/8/10
Y1 - 2018/8/10
N2 - Industrial scale black silicon texturing has become a topic of increasing importance as a method for enabling lower cost multicrystalline silicon wafers through diamond wire sawing, as well as for its potential to provide improved efficiencies through enhanced optical characteristics. Two different texturing processes have emerged as candidates for mainstream industrial uptake, metal catalyzed chemical etching (MCCE) and reactive ion etching (RIE). However, these techniques can produce substantially different textures and both provide a wide parameter space allowing for various feature shapes and sizes to be produced. The surface texture not only determines the total reflectance of a solar cell, but also impacts the light trapping and subsequent absorption through scattering. Here, we carry out a detailed analysis on a representative range of both MCCE and RIE textures on multiple substrate types in order to further develop the fundamental understanding of how these specific surface morphologies impact the optical characteristics. This will better enable integration with other process conditions as well as optimization between optical and electrical requirements.
AB - Industrial scale black silicon texturing has become a topic of increasing importance as a method for enabling lower cost multicrystalline silicon wafers through diamond wire sawing, as well as for its potential to provide improved efficiencies through enhanced optical characteristics. Two different texturing processes have emerged as candidates for mainstream industrial uptake, metal catalyzed chemical etching (MCCE) and reactive ion etching (RIE). However, these techniques can produce substantially different textures and both provide a wide parameter space allowing for various feature shapes and sizes to be produced. The surface texture not only determines the total reflectance of a solar cell, but also impacts the light trapping and subsequent absorption through scattering. Here, we carry out a detailed analysis on a representative range of both MCCE and RIE textures on multiple substrate types in order to further develop the fundamental understanding of how these specific surface morphologies impact the optical characteristics. This will better enable integration with other process conditions as well as optimization between optical and electrical requirements.
UR - http://www.scopus.com/inward/record.url?scp=85051990591&partnerID=8YFLogxK
U2 - 10.1063/1.5049297
DO - 10.1063/1.5049297
M3 - Conference paper
AN - SCOPUS:85051990591
SN - 0094-243X
VL - 1999
SP - 1
EP - 8
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
IS - 1
M1 - 050007
T2 - SiliconPV 2018: The 8th International Conference on Crystalline Silicon Photovoltaics
Y2 - 19 March 2018 through 21 March 2018
ER -