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Cu(In 2

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Cell-to-module efficiency gap 1

Cu(Inx 1

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Ga)Se₂ 1

Ga)Se₂ photovoltaic module 1

Ga1-x)Se2 1

Hyperspectral photoluminescence 1

Ionomer 1

Laser ablation short-range heat effect 1

Moisture absorption and desorption 1

P1-induced power losses 1

Post-deposition treatment 1

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flexible solar cell 1

perovskite 1

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Absorption and Desorption in an Ionomer-Based Encapsulant: A Type of Self-Breathing Encapsulant for CIGS Article

Miao Yang, Raymund Schäffler, Tobias Repmann, Kay Orgassa

Engineering 2020, Volume 6, Issue 12, Pages 1403-1407 doi: 10.1016/j.eng.2020.02.020

Abstract:

As an alternative to conventional encapsulation concepts for a double glass photovoltaic (PV) module, we introduce an innovative ionomer-based multi-layer encapsulant, by which the application of additional edge sealing to prevent moisture penetration is not required. The spontaneous moisture absorption and desorption of this encapsulant and its raw materials, poly (ethylene-co-acrylic acid) and an ionomer, are analyzed under different climatic conditions in this work. The relative air humidity is thermodynamically the driving force for these inverse processes and determines the corresponding equilibrium moisture content (EMC). Higher air humidity results in a larger EMC. The homogenization of the absorbed water molecules is a diffusion-controlled process, in which temperature plays a dominant role. Nevertheless, the diffusion coefficient at a higher temperature is still relatively low. Hence, under normal climatic conditions for the application of PV modules, we believe that the investigated ionomer-based encapsulant can "breathe" the humidity: During the day, when there is higher relative humidity, it "inhales" (absorbs) moisture and restrains it within the outer edge of the module; then at night, when there is a lower relative humidity, it "exhales" (desorbs) the moisture. In this way, the encapsulant protects the cell from moisture ingress.

Keywords： Ionomer Encapsulant Moisture absorption and desorption Cu(In Ga)Se₂ photovoltaic module

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Research on the Development of Flexible Solar Cells

Wang Hui, Cao Yuexian, Feng Jiangshan, Du Minyong, Zhang Doudou, Wang Kai, Qin Wei, Liu Shengzhong

Strategic Study of CAE 2018, Volume 20, Issue 3, Pages 66-73 doi: 10.15302/J-SSCAE-2018.03.010

Abstract: respectively, including the flexible silicon thin film solar cell, the flexible CdTe solar cell, the flexible CIGS

Keywords： flexible solar cell silicon thin film CIGS CdTe perovskite

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Origins of P1-Induced Power Losses in Cu(In_x,Ga_1–x)Se₂ (CIGS Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Engineering 2020, Volume 6, Issue 12, Pages 1395-1402 doi: 10.1016/j.eng.2019.12.019

Abstract: interconnections of subcells on Cu(In_x,Ga_1-x)Se₂ (CIGSSpecifically, by analyzing the standard P1 patterning line ablated before the CIGS deposition, we revealalso investigate the laser-induced damage on P1 patterning lines performed after the deposition of CIGS

Keywords： Cu(Inx Ga1-x)Se2 Cell-to-module efficiency gap P1-induced power losses Hyperspectral photoluminescence Laser ablation short-range heat effect

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Review on Alkali Element Doping in Cu(In,Ga)Se₂ Thin Films and Solar Cells

Yun Sun,Shuping Lin,Wei Li,Shiqing Cheng,Yunxiang Zhang,Yiming Liu,Wei Liu

Engineering 2017, Volume 3, Issue 4, Pages 452-459 doi: 10.1016/J.ENG.2017.04.020

Abstract:

This paper reviews the development history of alkali element doping on Cu(In,Ga)Se₂ (CIGSThe influences of incorporation strategies on CIGS absorbers and device performances are also reviewedBy analyzing CIGS surface structure and electronic property variation induced by alkali fluoride (NaFpost-deposition treatment (PDT), we discuss and interpret the following issues: ① The delamination of CIGS

Keywords： Alkali elements Cu(In Ga)Se₂ Thin-film solar cells Post-deposition treatment