GSTDTAP

浏览/检索结果: 共5条,第1-5条 帮助

已选(0)清除 条数/页:   排序方式:
On-device lead sequestration for perovskite solar cells 期刊论文
NATURE, 2020, 578 (7796) : 555-+
作者:  Fruchart, Michel;  Zhou, Yujie;  Vitelli, Vincenzo
收藏  |  浏览/下载:46/0  |  提交时间:2020/07/03

Perovskite solar cells, as an emerging high-efficiency and low-cost photovoltaic technology(1-6), face obstacles on their way towards commercialization. Substantial improvements have been made to device stability(7-10), but potential issues with lead toxicity and leaching from devices remain relatively unexplored(11-16). The potential for lead leakage could be perceived as an environmental and public health risk when using perovskite solar cells in building-integrated photovoltaics(17-23). Here we present a chemical approach for on-device sequestration of more than 96 per cent of lead leakage caused by severe device damage. A coating of lead-absorbing material is applied to the front and back sides of the device stack. On the glass side of the front transparent conducting electrode, we use a transparent lead-absorbing molecular film containing phosphonic acid groups that bind strongly to lead. On the back (metal) electrode side, we place a polymer film blended with lead-chelating agents between the metal electrode and a standard photovoltaic packing film. The lead-absorbing films on both sides swell to absorb the lead, rather than dissolve, when subjected to water soaking, thus retaining structural integrity for easy collection of lead after damage.


Using lead-absorbing materials to coat the front and back of perovskite solar cells can prevent lead leaching from damaged devices, without affecting the device performance or long-term operation stability.


  
Aftermath of Fukushima: Avoiding another major nuclear disaster 期刊论文
ENERGY POLICY, 2019, 126: 411-420
作者:  Behling, Noriko;  Williams, Mark C.;  Behling, Thomas G.;  Managi, Shunsuke
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Accident cost  Dengen Sampo (Three Electric Power Laws)  Fukushima Daiichi  Safety culture  Mindset of negligence  Core damage frequency  
Costs and benefits of saving unprofitable generators: A simulation case study for US coal and nuclear power plants 期刊论文
ENERGY POLICY, 2019, 124: 383-400
作者:  Shawhan, Daniel L.;  Picciano, Paul D.
收藏  |  浏览/下载:24/0  |  提交时间:2019/04/09
Simulation modeling  Electric power sector  Coal and nuclear subsidy  Cost-benefit analysis  Premature mortality  Environmental damage  
Valuing Improvements in Biodiversity Due to Controls on Atmospheric Nitrogen Pollution 期刊论文
ECOLOGICAL ECONOMICS, 2018, 152: 358-366
作者:  Jones, Laurence;  Milne, Alice;  Hall, Jane;  Mills, Gina;  Provins, Allan;  Christie, Michael
收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09
Nitrogen deposition  Species richness  Economic value  Damage cost  Ecosystem services  Policy  
External cost of photovoltaic oriented silicon production: A case in China 期刊论文
ENERGY POLICY, 2017, 107
作者:  Wang, Zanxin;  Wei, Wei
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/09
Photovoltaic oriented silicon  External cost  Agricultural loss  Health damage