Single heterojunction solar cells on exfoliated flexible ∼25 μm thick mono-crystalline silicon substrates

被引:39
作者
Saha, Sayan [1 ]
Hilali, Mohamed M. [1 ]
Onyegam, Emmanuel U. [1 ]
Sarkar, Dabraj [2 ]
Jawarani, Dharmesh [3 ]
Rao, Rajesh A. [4 ]
Mathew, Leo [4 ]
Smith, Ryan S. [3 ]
Xu, Dewei [3 ]
Das, Ujjwal K. [5 ]
Sopori, Bhushan [6 ]
Banerjee, Sanjay K. [1 ]
机构
[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78758 USA
[2] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA
[3] AstroWatt Inc, Austin, TX 78758 USA
[4] Appl Novel Devices, Austin, TX 78758 USA
[5] Univ Delaware, Inst Energy Convers, Newark, DE 19716 USA
[6] Natl Renewable Energy Lab, Golden, CO 80401 USA
关键词
EFFICIENCY; VOLTAGE;
D O I
10.1063/1.4803174
中图分类号
O59 [应用物理学];
学科分类号
摘要
Mono-crystalline silicon single heterojunction solar cells on flexible, ultra-thin (similar to 25 mu m) substrates have been developed based on a kerf-less exfoliation method. Optical and electrical measurements demonstrate maintained structural integrity of these flexible substrates. Among several single heterojunction similar to 25 mu m thick solar cells fabricated with un-optimized processes, the highest open circuit voltage of 603 mV, short circuit current of 34.4 mA/cm(2), and conversion efficiency of 14.9% are achieved separately on three different cells. Preliminary reliability test results that include thermal shock and highly accelerated stress tests are also shown to demonstrate compatibility of this technology for use in photovoltaic modules. (C) 2013 AIP Publishing LLC [http://dx.doi.org/10.1063/1.4803174]
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页数:5
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