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Cho, Yunae,Gwon, Minji,Park, Hyeong-Ho,Kim, Joondong,Kim, Dong-Wook The Royal Society of Chemistry 2014 Nanoscale Vol.6 No.16
<P>A high photocurrent of 36.96 mA cm<SUP>−2</SUP>was achieved for wafer-scaled crystalline Si solar cells with hexagonal nanoconical frustum arrays at the surface. Optical simulations showed that the expected photocurrent of 10 μm thick nanostructured cells could slightly exceed the Lambertian limit.</P>
Yunae Cho,이은송이,김동욱,SeJin Ahn,Guk Yeong Jeong,곽지혜,JaeHo Yun,Hogyoung Kim 한국물리학회 2013 Current Applied Physics Vol.13 No.1
We investigated the transport and photovoltaic properties of Cu(In1-xGax)Se2 (CIGS) thin-film solar cells. The shunt-current-eliminated diode current could be obtained from the currentevoltage characteristics by subtracting the parasitic shunt leakage current from the total current. The temperature dependence of the open-circuit voltage, extracted from the shunt-eliminated (total) current, suggested that the recombination activation energy is comparable to (much less than) the CIGS bandgap. The lowtemperature characteristics of the diode ideality factor supported bulk-dominated recombination in the same cell. This suggests that shunt-current subtraction can provide the proper diode parameters of CIGS solar cells.